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Contents Section: Exterior Lights All sections

Lighting System Chevrolet Captiva I рестайлинг 2

Exterior Lights 45 illustrations ~22382 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
CHMSL to Rear Liftgate Spoiler Screw2.5 N.m22 lb in
Dome Lamp Screw2 N.m18 lb in
Fog Lamp Bracket Nut3 N.m27 lb in
Fog Lamp Bracket to Fascia Screws1.5 N.m13 lb in
Front Fog Lamp Opening Cover Screw1.5 N.m13 lb in
Headlamp Assembly Bolts-Base7.5 N.m66 lb in
Headlamp Assembly Bolts-Redline7.5 N.m66 lb in
Headlamp Housing Bracket Assembly Screw2.5 N.m22 lb in
Key Hole Lamp Retaining Screw2.5 N.m22 lb in
License Plate Bulb Assembly Screws.9 N.m8 lb in
Rear Bumper Reflector Nut.5 N.m4 lb in
Tail Lamp Screws2.5 N.m22 lb in

Fastener Tightening Specifications

Scheme 1

Scheme 1: Headlamp Controls Wiring Schematics
Scheme 1: Headlamp Controls Wiring Schematics

Scheme 2

Scheme 2: Headlamps and Daytime Running Lights Wiring Schematics
Scheme 2: Headlamps and Daytime Running Lights Wiring Schematics

Scheme 3

Scheme 3: Fog Lights (T37 or T96) Wiring Schematics
Scheme 3: Fog Lights (T37 or T96) Wiring Schematics

Scheme 4

Scheme 4: Park, License and Tail Lamps Wiring Schematics
Scheme 4: Park, License and Tail Lamps Wiring Schematics

Scheme 5

Scheme 5: Marker Lamps Wiring Schematics
Scheme 5: Marker Lamps Wiring Schematics

Scheme 6

Scheme 6: Turn Signal/Hazard Lamps Wiring Schematics
Scheme 6: Turn Signal/Hazard Lamps Wiring Schematics

Scheme 7

Scheme 7: Stop Lamps Wiring Schematics
Scheme 7: Stop Lamps Wiring Schematics

Scheme 8

Scheme 8: Backup Lamps Wiring Schematics
Scheme 8: Backup Lamps Wiring Schematics

Scheme 9

Scheme 9: Dome/Reading, Ignition Switch and Rear Compartment Courtesy Lamps Wiring Schematics
Scheme 9: Dome/Reading, Ignition Switch and Rear Compartment Courtesy Lamps Wiring Schematics

Scheme 10

Scheme 10: Courtesy/Reading and Sunshade Lamps Wiring Schematics
Scheme 10: Courtesy/Reading and Sunshade Lamps Wiring Schematics

Scheme 11

Scheme 11: Dimming Control, Garage Door Opener and Shift Lever Position Indicator Wiring Schematics
Scheme 11: Dimming Control, Garage Door Opener and Shift Lever Position Indicator Wiring Schematics

Scheme 12

Scheme 12: Center Console, Door and Instrument Panel Dimming Wiring Schematics
Scheme 12: Center Console, Door and Instrument Panel Dimming Wiring Schematics

Diagnostic Code Index

DTCDescription
DTC B1395DTC B1395 03 Device Voltage Reference Output 1 Circuit Voltage Below Threshold DTC B1395 07 Device Voltage Reference Output 1 Circuit Voltage Above Threshold
DTC B1480DTC B1480 00 Battery Rundown Protection Circuit
DTC B2545DTC B2545 00 Backup Lamps Circuit
DTC B2575DTC B2575 00 Headlamp Low Beam Control Circuit
DTC B257ADTC B257A 00 Headlamp Switch Input Signals Mismatch
DTC B2580DTC B2580 00 Headlamp High Beam Control Circuit
DTC B2585DTC B2585 00 Park Lamp Control Circuit
DTC B2600DTC B2600 00 Daytime Running Lamp Control Circuit
DTC B2610DTC B2610 00 Passenger Compartment Dimming 1 Circuit
DTC B2625DTC B2625 00 Passenger Compartment Dimming Request Signal Circuit Voltage Below Threshold
DTC B2645DTC B2645 03 Ambient Light Sensor Circuit Below Threshold DTC B2645 07 Ambient Light Sensor Circuit Above Threshold
DTC B2652DTC B2652 00 Passenger Compartment Dimming 3
DTC B3445DTC B3445 00 Stop Lamp Circuit
DTC B3600DTC B3600 03 Passenger Compartment Dimming Request Signal Circuit Voltage Below Threshold
DTC C0277 or C0890DTC C0277 06 Brake Pedal Position Sensor Circuit Short to Ground or Open DTC C0277 07 Brake Pedal Position Sensor Circuit Voltage Above Threshold DTC C0277 09 Brake Pedal Position Sensor Circuit Rate of Change Above Threshold DTC C0277 4B Brake Pedal Position Sensor Calibration Not Learned DTC C0890 03 Device Voltage Reference Output 3 Circuit Voltage Below Threshold DTC C0890 07 Device Voltage Reference Output 3 Circuit Voltage Above Threshold
DTC C0297DTC C0297 00 Brake Applied Output Circuit

DIAGNOSTIC CODE INDEX

Diagnostic Instructions

  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

Diagnostic Fault Information

CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Body Control Module (BCM) VB4 Fuse B+ SupplyB1395 03B1395 03
DIM Fuse B+ SupplyB2652 00B2652 00
I/P Dimmer Switch B+ Voltage ReferenceB1395 03, B3600 03B3600 03
I/P Lamps Dimmer Switch SignalB2652 00
I/P Dimmer Switch SignalB1395 03, B3600 03B3600 031
LED Backlight Dimming ControlB2610 0011
I/P dimmer Switch Ground1
1. Interior Backlighting Malfunction

Circuit/System Description

The instrument panel (I/P) lamp dimmer switch is used to increase and decrease the brightness of the interior backlighting components. The I/P dimmer switch provides a voltage signal that will increase as the brightness of the lights are increased and decrease as the brightness of the lights are decreased. The body control module (BCM) provides a B+ voltage reference to the I/P dimmer switch. When the I/P dimmer switch is placed in the desired position, the dimmed voltage setting is applied from the I/P dimmer switch through the I/P dimmer switch signal circuit to the BCM. The BCM interprets the signal and applies the dimmed voltage to the I/P lamps supply voltage circuit and the interior backlighting components dim to the requested level. Ground for the I/P dimmer switch is provided at G201.

Conditions for Running the DTC

Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

B1395 03

The DTC will set for the following conditions

  1. The BCM detects a short to ground in the I/P dimmer switch voltage reference circuit.
  2. The BCM detects a short to ground in the I/P dimmer switch signal circuit.
  3. The BCM detects a short to ground or an open/high resistance in the BCM VB4 fuse B+ circuit.

B1395 07

The DTC will set when the BCM detects a short to voltage in the I/P dimmer switch voltage reference circuit or the vehicles system voltage exceeds the normal operating range of 16 volts.

Action Taken When the DTC Sets

  1. The I/P dimmer switch will not operate.
  2. The I/P dimming lamps will not illuminate.

Conditions for Clearing the DTC

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool Dimming Control Reference voltage. The reading should display 2.5 volts or greater.

  1. If less than the specified range, refer to I/P Dimming Control Malfunction.
  2. If within the specified range, refer to I/P Dimmer Switch Malfunction.

Circuit/System Testing

I/P Dimmer Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the I/P dimmer switch.
  2. Ignition OFF, verify that a test lamp illuminates between B+ and the ground circuit terminal 4. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Dimming Control Signal parameter is less than 0.0 volts. If greater than the specified range, test the signal circuit terminal 13 for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Ignition ON, test for B+ between the voltage reference circuit terminal 12 and ground. If less than the specified value, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Install a 3A fused jumper wire between the signal circuit terminal 13 and the voltage reference circuit terminal 12. Verify the scan tool Dimming Control Signal parameter is greater than 2.5 volts. If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  6. If all circuits test normal, test or replace the I/P dimmer switch.

I/P Dimming Control Malfunction

  1. Ignition OFF, disconnect the X4 harness connector at the BCM.
  2. Ignition ON, verify that a test lamp illuminates between the BCM VB4 fuse B+ circuit terminal 4 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. If all circuit tests normal, replace the BCM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Courtesy Lamp ControlB1480 0011
Ground1
1. Courtesy Lamps Malfunction

The body control module (BCM) applies battery voltage to the courtesy lamps through 2 separately controlled courtesy lamp supply voltage circuits. When any door is opened, the door ajar switch contacts close and the BCM receives a door-ajar input. If the BCM receives a door lock or unlock input or a rear hatch open input, the BCM will activate the courtesy lamp supply voltage circuits, providing battery voltage to all of the instrument panel (I/P) courtesy lamps, dome lamps, rearview mirror lamps and rear compartment lamps. In the event that any of these lamps were to remain illuminated for more than 20 minutes with the ignition switch in the OFF position, the BCM will deactivate the courtesy lamp control circuits to prevent a total battery discharge condition.

Battery voltage must be between 9-16 volts.

DTC B1480 00 will set when the courtesy lamp supply voltage circuit that feeds the courtesy lamps, dome lamps or overhead console lamps are shorted to ground for longer than 1 second.

The courtesy lamps will not operate.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once the 100 consecutive malfunction free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the appropriate harness connector at each component fed by the inadvertent power courtesy lamp control circuit.
  2. Ignition ON, verify that a test lamp illuminates between the courtesy lamp control circuit at each component harness connector and ground. If the test lamp does not illuminate, test the inadvertent power courtesy lamp control circuit for a short to ground or an open/high resistance. If the circuits test normal, replace the BCM.
  3. Connect each component one at a time and verify with a scan tool if the DTC resets as current. If the DTC resets, test or replace the inoperative component.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Reading Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Door Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  3. «Ignition Lock Cylinder Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  4. «Overhead Console Reading Lamp and Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  5. «Instrument Panel Compartment Lamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  6. «Sunshade Illuminated Mirror Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  7. «Dome Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  8. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  9. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Backup Lamps ControlB2545 0011
Backup Lamp Ground - Left1
Backup Lamp Ground - Right1
1. Backup Lamps Malfunction

When the transmission is placed in the REVERSE position, the transmission control module (TCM) sends a serial data message to the body control module (BCM). The message indicates that the gear selector is in the REVERSE position. The BCM applies battery voltage to the backup lamps and inside rearview mirror. Once the driver moves the gear selector out of the REVERSE position, a message is sent by the TCM via serial data requesting the BCM to remove battery voltage from the backup lamp control circuit. The engine may need to be running for the backup lamps to function.

  1. Battery voltage must be between 9-16 V.
  2. Backup lamps commanded ON.

DTC B2545 00 will set when the BCM detects a short to ground in the backup lamps control circuit.

When DTC B2545 00 is present, the backup lamps will not operate.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the harness connector at the inside rearview mirror.
  2. Connect a test lamp between the control circuit terminal 10 and ground.
  3. Command the Backup Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  4. Connect the harness connector at the inside rearview mirror.
  5. Ignition OFF, disconnect the harness connector at the inoperative backup lamp.
  6. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal B and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  7. Connect a test lamp between the control circuit terminal A and ground.
  8. Command the Backup Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  9. If all circuits test normal, test or replace the inoperative backup lamp.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Tail Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Inside Rearview Mirror Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/mirrors/#mirror-system)
  3. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Flash to Pass Switch Signal111
Headlamp Switch High Beam Signal111
Headlamp Switch Headlamps ON SignalB257A 0011
Headlamp Switch Headlamps OFF SignalB257A 0011
Headlamp High Beam Relay Control11B2580 00
Headlamp Low Beam Relay Control11B2575 00
LF High Beam Headlamp Control111
LF Low Beam Headlamp Control111
RF High Beam Headlamp Control111
RF Low Beam Headlamp Control111
LF Headlamp Ground1
RF Headlamp Ground1
Headlamp Switch Ground1
Turn Signal/Multifunction Switch Ground1
1. Headlamps Malfunction

When the headlamp switch is placed in the headlamp ON position, ground is applied to the body control module (BCM) through the headlamp ON signal circuit. The BCM then applies ground to the headlamp low beam relay control circuit which energizes the low beam relay. With the low beam relay energized, the switch contacts close allowing battery voltage to flow through the HDLP LO beam fuses to the low beam headlamps. Ground for the left headlamp is supplied at G101 and the right headlamp receives ground at G102.

  1. Battery voltage must be between 9-16 volts.
  2. Headlamps ON.

DTC B2575 00 will set when the BCM detects a short to voltage in the headlamp low beam relay control circuit.

Actions Taken When the DTC Sets

When DTC B2575 00 is present, the low beam headlamps will not operate.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the low beam relay.
  2. Connect a test lamp between the control circuit terminal 86 and the B+ circuit terminal 85.
  3. Command the Low Beam headlamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or open/high resistance. If the circuit tests normal, replace the BCM.
  4. If all circuits test normal, test or replace the low beam relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions__relay-replacement-within-an-electrical-center) , «Relay Replacement (Attached to Wire Harness)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Flash to Pass Switch Signal111
Headlamp Switch High Beam Signal111
Headlamp Switch Headlamps ON SignalB257A 0011
Headlamp Switch Headlamps OFF SignalB257A 0011
Headlamp High Beam Relay Control11B2580 00
Headlamp Low Beam Relay Control11B2575 00
LF High Beam Headlamp Control111
LF Low Beam Headlamp Control111
RF High Beam Headlamp Control111
RF Low Beam Headlamp Control111
LF Headlamp Ground1
RF Headlamp Ground1
Headlamp Switch Ground1
Turn Signal/Multifunction Switch Ground1
1. Headlamps Malfunction

When the headlamp switch is placed in the AUTO position, the body control module (BCM) receives a ground signal through the headlamp switch headlamps OFF signal circuit. The headlamps ON signal circuit and the park lamp switch signal circuit are both open and have no ground signal. When the headlamp switch is placed in the PARK or HEAD position, the BCM will receive a ground signal through the headlamp switch headlamps ON signal circuit and the park lamp switch signal circuit. The headlamp switch headlamps OFF signal circuit will be open and have no ground signal.

Battery voltage must be between 9-16 volts.

DTC B257A 00 will set when the BCM detects a short to ground on the headlamp switch headlamps OFF signal circuit or the headlamp switch headlamps ON signal circuit.

  1. When DTC B257A 00 is present on the headlamp switch headlamps OFF signal circuit, the low beam headlamps are always ON in the AUTO position. The headlamp switch operates in all positions other than AUTO. The AUTO headlamp defeat is inoperative.
  2. When DTC B257A 00 is present on the headlamp switch headlamps ON signal circuit, the low beam headlamps are always ON. The BCM disregards all headlamp switch inputs.
  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the X2 harness connector at the BCM.
  2. Connect a test lamp between the signal circuit terminal 17 and B+.
  3. Turn the headlamp switch between the AUTO and AUTO disable positions. The test lamp should turn ON and OFF as the switch is cycled. If the test lamp is always OFF, test the signal circuit for a short to voltage or an open/high resistance. If the circuit test normal, replace the headlamp switch. If the test lamp is always ON, test the signal circuit for a short to ground. If the circuit test normal, replace the headlamp switch.
  4. Connect a test lamp between the signal circuit terminal 12 and B+.
  5. Turn the headlamp switch to the ON and OFF positions. The test lamp should turn ON and OFF as the switch is cycled. If the test lamp is always OFF, test the signal circuit for a short to voltage or an open/high resistance. If the circuit test normal, replace the headlamp switch. If the test lamp is always ON, test the signal circuit for a short to ground. If the circuit test normal, replace the headlamp switch.
  6. Connect a test lamp between the signal circuit terminal 8 and B+.
  7. Turn the headlamp switch to the PARK and OFF positions. The test lamp should turn ON and OFF as the switch is cycled. If the test lamp is always OFF, test the signal circuit for a short to voltage or an open/high resistance. If the circuit test normal, replace the headlamp switch. If the test lamp is always ON, test the signal circuit for a short to ground. If the circuit test normal, replace the headlamp switch.
  8. If all circuits test normal, replace the BCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Flash to Pass Switch Signal111
Headlamp Switch High Beam Signal111
Headlamp Switch Headlamps ON SignalB257A 0011
Headlamp Switch Headlamps OFF SignalB257A 0011
Headlamp High Beam Relay Control11B2580 00
Headlamp Low Beam Relay Control11B2575 00
LF High Beam Headlamp Control111
LF Low Beam Headlamp Control111
RF High Beam Headlamp Control111
RF Low Beam Headlamp Control111
LF Headlamp Ground1
RF Headlamp Ground1
Headlamp Switch Ground1
Turn Signal/Multifunction Switch Ground1
1. Headlamps Malfunction

When the turn signal/multifunction switch is placed in the headlamps high or flash to pass (FTP) position, ground is applied to the body control module (BCM) through the headlamp high beam signal circuit or the flash to pass switch signal circuit. The BCM applies ground to the headlamp high beam relay control circuit which energizes the high beam relay. With the high beam relay energized, the switch contacts close allowing battery voltage to flow through the HDLP HI beam fuses to the high beam headlamps. Ground for the left headlamp is supplied at G101 and the right headlamp receives ground at G102.

  1. Battery voltage must be between 9-16 volts.
  2. Headlamps ON.

DTC B2580 00 will set when the BCM detects a short to voltage in the headlamp high beam relay control circuit.

When DTC B2580 00 is present, the high beam headlamps and flash to pass (FTP) will not operate.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the high beam relay.
  2. Connect a test lamp between the control circuit terminal 86 and the B+ circuit terminal 85.
  3. Command the High Beam headlamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or open/high resistance. If the circuit tests normal, replace the BCM.
  4. If all circuits test normal, test or replace the high beam relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions__relay-replacement-within-an-electrical-center) , «Relay Replacement (Attached to Wire Harness)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Park Lamp Switch ON Signal111
Park Lamp Relay Control11B2585 00
Park Lamp Control111
License Lamp Ground1
Park Lamps - LF Ground1
Park Lamps - RF Ground1
Tail/Stop Lamps - LR Ground1
Tail/Stop Lamps - RR Ground1
Headlamp Switch Ground1
1. Park, License, and/or Tail Lamps Malfunction

Battery voltage is applied at all times to both the coil and switch sides of the PARK LAMP relay located in the underhood fuse block. The headlamp switch is suppled with ground at G201 at all times. When the headlamp switch is placed in either the HEAD or PARK position, ground is applied to the park lamp signal circuit to the body control module (BCM). The BCM responds by applying ground to the park lamp relay control circuit. This energizes the park lamp relay coil causing the relay switch contacts to close allowing battery voltage to flow through the T/LAMP LT and T/LAMP RT fuses to all of the park, tail, license and marker lamps.

  1. Battery voltage must be between 9-16 volts.
  2. Park lamps ON.

DTC B2585 00 will set when the BCM detects a short to voltage in the park lamp relay control circuit.

When DTC B2585 00 is present, the park lamps will not operate.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the park lamp relay.
  2. Ignition ON, verify a test lamp does not illuminate between the control circuit terminal 87 and ground. If the test lamp illuminates, test the control circuit for a short to voltage.
  3. Verify a test lamp illuminates between the B+ circuit terminal 30 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 87 for a short to ground. If the circuit tests normal, test or replace the park lamp relay.
  4. Verify a test lamp illuminates between the B+ circuit terminal 85 and ground. If the test lamp does not illuminate, test the B+ circuit for an open/high resistance.
  5. Connect a test lamp between the B+ circuit terminal 85 and the control circuit terminal 86.
  6. Command the Parking Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  7. If all circuits test normal, test or replace the park lamp relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions__relay-replacement-within-an-electrical-center) , «Relay Replacement (Attached to Wire Harness)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Ambient Light Sensor SignalB2645 03B2645 07B2645 07
DRL Relay Control11B2600 00
Ambient Light Sensor GroundB2645 07
1. Daytime Running Lamps Malfunction

The ambient light sensor is used to monitor outside lighting conditions. The ambient light sensor provides a voltage signal that will vary between 0.2 and 4.9 volts depending on outside lighting conditions. The body control module (BCM) provides a 5 V reference signal to the ambient light sensor. The body control module (BCM) monitors the ambient light sensor signal circuit to determine if outside lighting conditions are correct for either daytime running lights (DRL) or automatic lamp control (ALC) when the headlamp switch is in the AUTO position. In daylight conditions, the BCM will command the DRLs ON by applying ground to the DRL relay via the DRL relay control circuit. When the BCM applies ground to the DRL relay control circuit, the DRL relay coil energizes causing the relay switch contacts to close. With the DRL relay energized, voltage is applied through the relay switch contacts, the DRL Resistor and the DRL fuse to the left and right low beam headlamp fuses illuminating the low beam headlamps. Any function or condition that turns the headlamps ON will cancel DRL operation. Any function or condition that turns on the headlamps will cancel DRL operation.

  1. Battery voltage must be between 9-16 V.
  2. Headlamp switch in AUTO position.

DTC B2600 00 will set when the BCM detects a short to voltage in the DRL relay control circuit.

The BCM will disable the DRL relay control circuit.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the DRL relay.
  2. Connect a test lamp between the B+ circuit terminal 85 and the control circuit terminal 86.
  3. Command the DRL ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  4. If all circuits test normal, test or replace the DRL relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions__relay-replacement-within-an-electrical-center) , «Relay Replacement (Attached to Wire Harness)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, programming and setup
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
LED Backlight Lamp ControlB2610 0021
1. Interior LED Backlighting Does Not Dim 2. Interior LED Backlighting Inoperative

The body control module (BCM) supplies a voltage reference through the instrument panel (I/P) dimming voltage reference circuit to the interior lamp dimmer switch, which is part of the headlamp switch. When the dimmer switch is placed in a desired brightness position, reference voltage is applied through the dimmer switch rheostat and the I/P lamps dimmer switch signal circuit to the BCM. The BCM interprets this voltage signal, then applies a variable voltage through the LED backlight lamp control circuit illuminating the backlighting components.

  1. The ignition is ON.
  2. The headlamps or park lamps ON.

The BCM detects a short to ground on the LED backlight lamp control circuit.

The BCM will not DIM or illuminate any LED backlighting supplied by the backlight lamp control circuits.

A history DTC will clear once 100 consecutive malfunction ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, command Interior Dimming ON and OFF with a scan tool. The Interior Dimming lighting components should turn ON and OFF as commanded.

Note. Each back lighted component may need to be disconnected to isolate a short to voltage or short to ground. Use the schematic to identify the following: Back lighted components the vehicle is equipped with. Component locations on the back lighting dimming control circuit Each component's control and ground circuit terminals

  1. Ignition OFF, disconnect the harness connector at any component with inoperative backlighting.
  2. Ignition OFF, scan tool disconnected, interior lamps OFF, doors CLOSED, test for less than 5 ohms between the ground circuit and ground. If greater than the specified value, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the control circuit terminal and ground.
  4. Command the Incandescent Dimming Control ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the component with the inoperative backlighting.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for BCM, HVAC control module and radio replacement, setup and programming

  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Indicator Dimming ControlB2625 0011
1. Interior Backlighting Malfunction

The instrument panel (I/P) lamp dimmer switch is used to increase and decrease the brightness of the interior backlighting components. The I/P dimmer switch provides a voltage signal that will increase as the brightness of the lights are increased and decrease as the brightness of the lights are decreased. The body control module (BCM) provides a B+ voltage reference to the I/P dimmer switch. When the I/P dimmer switch is placed in the desired position, the dimmed voltage setting is applied from the I/P dimmer switch through the I/P dimmer switch signal circuit to the BCM. The BCM interprets the signal and applies the dimmed voltage to the I/P lamps supply voltage circuit and the interior backlighting components dim to the requested level.

  1. Battery voltage must be between 9-16 V.
  2. Park lamps ON.

DTC B2625 00 will set when the BCM detects a short to ground in the indicator dimming control circuit.

The BCM will not illuminate the indicators supplied by the indicator dimming control circuit.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Note. Each back lighted component may need to be disconnected to isolate a short to voltage or short to ground. Use the schematic to identify the following: Back lighted components the vehicle is equipped with. Component locations on the back lighting dimming control circuit Each component's control and ground circuit terminals

  1. Ignition OFF, disconnect the harness connector at any component with inoperative backlighting.
  2. Ignition OFF, scan tool disconnected, interior lamps OFF, doors CLOSED, test for less than 5 ohms between the ground circuit and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the control circuit and ground.
  4. Command the Interior Dimming ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the component with the inoperative backlighting.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. Refer to the appropriate replacement procedure for the lighting component that requires replacement.
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Ambient Light Sensor SignalB2645 03B2645 07B2645 07
DRL Relay Control22B2600 00
Headlamp - Left Low Beam Control111
Headlamp - Right Low Beam Control111
Ambient Light Sensor GroundB2645 07
Headlamp - Left Low Beam Ground1
Headlamp - Right Low Beam Ground1
1. Headlamps Malfunction 2. Daytime Running Lamps Malfunction

The ambient light sensor is used to monitor outside lighting conditions. The ambient light sensor provides a voltage signal that will vary between 0.2 and 4.9 volts depending on outside lighting conditions. The body control module (BCM) provides a 5-volt reference signal to the ambient light sensor. The body control module (BCM) monitors the ambient light sensor signal circuit to determine if outside lighting conditions are correct for either daytime running lights (DRL) or automatic lamp control (ALC) when the headlamp switch is in the AUTO position. In daylight conditions the BCM will command the DRLs ON. During low light conditions the BCM will command the low beam headlamps ON. Any function or condition that turns on the headlamps will cancel DRL operation.

Battery voltage must be between 9-16 volts.

B2645 03

The DTC will set when the BCM detects a short to ground in the ambient light sensor signal circuit.

B2645 07

The DTC will set when the BCM detects a short to voltage or an open/high resistance in the ambient light sensor signal circuit.

  1. Automatic lamp control (ALC) is inoperative.
  2. The BCM defaults to low light status and commands the low beam headlamps ON.
  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the harness connector at the ambient light sensor.
  2. Ignition OFF, scan tool OFF, doors CLOSED, test for less than 10 ohms between the appropriate ground circuit terminal listed below and ground. Ground terminal B - with C67 Ground terminal C - with C68 If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Ambient Light Sensor parameter is greater than 4.65 volts. If less than the specified range, test the appropriate signal circuit terminal listed below for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. Signal terminal A - with C67 Signal terminal D - with C68
  4. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and ground. Verify the scan tool Ambient Light Sensor parameter is less than 0.196 volts. Signal terminal A - with C67 Signal terminal D - with C68 If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the ambient light sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Headlamp Automatic Control Ambient Light Sensor Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Body Control Module (BCM) VB4 Fuse B+B1395 03B1395 03
DIM Fuse B+B2652 00B2652 00
I/P Dimmer Switch B+ Voltage ReferenceB1395 03, B3600 03B3600 03
I/P Lamps Dimmer Switch SignalB2652 00
I/P Dimmer Switch SignalB1395 03, B3600 03B3600 031
LED Backlight Dimming ControlB2610 0011
I/P dimmer Switch Ground1
1. Interior Backlighting Malfunction

The instrument panel (I/P) lamp dimmer switch is used to increase and decrease the brightness of the interior backlighting components. The I/P dimmer switch provides a voltage signal that will increase as the brightness of the lights are increased and decrease as the brightness of the lights are decreased. The body control module (BCM) provides a B+ voltage reference to the I/P dimmer switch. When the I/P dimmer switch is placed in the desired position, the dimmed voltage setting is applied from the I/P dimmer switch through the I/P dimmer switch signal circuit to the BCM. The BCM interprets the signal and applies the dimmed voltage to the I/P lamps supply voltage circuit and the interior backlighting components dim to the requested level.

  1. Battery voltage must be between 9-16 volts.
  2. Park lamps ON.

DTC B2652 00 will set for the following conditions

  1. The BCM detects a short to ground in the I/P lamps dimmer switch signal circuit.
  2. The BCM detects a short to ground or an open/high resistance in the DIM fuse B+ circuit.

The BCM will not DIM or illuminate any I/P lamps supplied by the I/P lamps dimmer switch signal circuit.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Note. Each back lighted component may need to be disconnected to isolate a short to voltage or short to ground. Use the schematic to identify the following: Back lighted components the vehicle is equipped with. Component locations on the back lighting dimming control circuit. Each component's control and ground circuit terminals.

  1. Ignition OFF, disconnect the harness connector at any component with inoperative backlighting.
  2. Ignition OFF, scan tool disconnected, interior lamps OFF, doors CLOSED, test for less than 5 ohms between the ground circuit and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the control circuit and ground.
  4. Command the Interior Dimming ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the component with the inoperative backlighting.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. Refer to the appropriate replacement procedure for the lighting component that requires replacement.
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
BCM B+ Terminal 4 X4B3445 00B3445 00
Brake Pedal Position Sensor 5 V ReferenceC0277 06, C0890 03, C0161 71C0277 06, C0161 71C0277 07, C0161 71
Brake Applied Signal Terminal 6 X5C0297 00, P0571 0033
Brake Pedal Position Sensor SignalC0277 06, C0161 71C0277 06, C0161 71C0277 07, C0161 71C0277 09
Stop Lamp Relay ControlB3445 0011
Brake Position Sensor Low Reference11
Center High Mounted Stop Lamp (CHMSL) Ground2
Left Rear Tail/Stop Lamp Ground1
Right Rear Tail/Stop Lamp Ground1
1. Stop Lamps Malfunction 2. Center High Mounted Stop Lamp (CHMSL) Malfunction 3. Cruise Control Malfunction

The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The body control module (BCM) provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the stop lamp control circuit illuminating the left and right stop lamps and the center high mounted stop lamp (CHMSL). The BCM also applies battery voltage to the transmission control module (TCM) and engine control module (ECM) via the brake applied signal circuit.

  1. Battery voltage must be between 9-16 volts.
  2. Brakes APPLIED.

The DTC will set when the BCM detects a short to ground in the stop lamp relay control circuit when the stop lamps are being commanded ON.

The BCM will not illuminate the stop lamps.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the X4 harness connector at the BCM.
  2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 4 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Ignition OFF, connect the X4 harness connector at the BCM.
  4. Disconnect the stop lamp relay.
  5. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal 86 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  6. Disconnect the harness connector at the center high mounted stop lamp (CHMSL).
  7. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal 2 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  8. Connect a test lamp between the control circuit terminal 1 and the ground circuit terminal 2.
  9. Ignition ON, command the stop lamps ON and OFF by applying and releasing the brake pedal. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  10. Ignition OFF, connect a test lamp between terminal 85 and terminal 86 at the fuse block - underhood.
  11. Ignition ON, command the stop lamps ON and OFF by applying and releasing the brake pedal. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp does not turn ON and OFF when commanded, replace the fuse block - underhood.
  12. If all circuits test normal, replace the stop lamp relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «High Mount Stop Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Circuit Protection - Fusible Links»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-protection-fusible-links)
  3. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
I/P Dimmer Switch B+ Voltage ReferenceB1395 03, B3600 03B3600 03
I/P Dimmer Switch SignalB1395 03, B3600 03B3600 031
I/P Dimmer Switch Ground1
1. Interior Backlighting Malfunction

The instrument panel (I/P) lamp dimmer switch is used to increase and decrease the brightness of the interior backlighting components. The I/P dimmer switch provides a voltage signal that will increase as the brightness of the lights are increased and decrease as the brightness of the lights are decreased. The body control module (BCM) provides a B+ voltage reference to the I/P dimmer switch. When the I/P dimmer switch is placed in the desired position, the dimmed voltage setting is applied from the I/P dimmer switch through the I/P dimmer switch signal circuit to the BCM. The BCM interprets the signal and applies the dimmed voltage to the I/P lamps supply voltage circuit and the interior backlighting components dim to the requested level. Ground for the I/P dimmer switch is provided at G201.

Battery voltage must be between 9-16 volts.

DTC B3600 03 will set when the BCM detects a short to ground or an open/high resistance in the I/P dimmer switch signal circuit or the I/P dimmer switch B+ voltage reference circuit.

  1. The I/P dimmer switch will not operate.
  2. The I/P dimming lamps will not illuminate.
  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the harness connector at the I/P dimmer switch.
  2. Ignition OFF, verify that a test lamp illuminates between B+ and the ground circuit terminal 4. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Dimming Control Signal parameter is less than 0.0 volts. If greater than the specified range, test the signal circuit terminal 13 for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Ignition ON, test for B+ between the voltage reference circuit terminal 12 and ground. If less than the specified value, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Install a 3A fused jumper wire between the signal circuit terminal 13 and the voltage reference circuit terminal 12. Verify the scan tool Dimming Control Signal parameter is greater than 2.5 volts. If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  6. If all circuits test normal, test or replace the I/P dimmer switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
BCM B+ Terminal 4 X4B3445 00B3445 00
Brake Pedal Position Sensor 5 V ReferenceC0277 06, C0890 03, C0161 71C0277 06, C0161 71C0277 07, C0161 71
Brake Applied Signal Terminal 6 X5C0297 00, P0571 0033
Brake Pedal Position Sensor SignalC0277 06, C0161 71C0277 06, C0161 71C0277 07, C0161 71C0277 09
Stop Lamp Relay ControlB3445 0011
Brake Position Sensor Low Reference11
Center High Mounted Stop Lamp (CHMSL) Ground2
Left Rear Tail/Stop Lamp Ground1
Right Rear Tail/Stop Lamp Ground1
1. Stop Lamps Malfunction 2. Center High Mounted Stop Lamp (CHMSL) Malfunction 3. Cruise Control Malfunction

The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The body control module (BCM) provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the stop lamp control circuit illuminating the left and right stop lamps and the center high mounted stop lamp (CHMSL). The BCM also applies battery voltage to the transmission control module (TCM) and engine control module (ECM) via the brake applied signal circuit.

  1. Battery voltage must be between 9-16 volts.
  2. Brakes APPLIED.

DTC C0277 06 will set for the following conditions

  1. The BCM detects a short to ground or an open/high resistance in the brake pedal position sensor signal circuit.
  2. The BCM detects a short to ground or an open/high resistance in the brake pedal position sensor 5-volt reference circuit.

DTC C0277 07 will set for the following conditions

  1. The BCM detects a short to battery voltage in the brake pedal position sensor signal circuit.
  2. The BCM detects a short to battery voltage in the brake pedal position sensor 5 V Reference circuit.

DTC C0277 09

The BCM detects the brake pedal position sensor signal is changing faster than possible under normal operating conditions.

DTC C0277 4B

The brake pedal position sensor home position is not learned.

DTC C0890 03

The BCM detects a short to ground in the brake pedal position sensor voltage reference circuit.

DTC C0890 07

The BCM detects a short to battery voltage in the brake pedal position sensor voltage reference circuits.

  1. The ABS Fault indicator is commanded ON.
  2. If the DTC sets while the vehicle is running, the BCM will activate the brake lights when the vehicles transmission is not in the PARK position and the vehicle is not accelerating.
  3. For DTC C0277 4B the stop lamps may not activate at the expected brake pedal positions.
  1. The condition responsible for setting the DTC no longer exists.
  2. For DTC C0277 07 the ignition must be cycled before the code can be cleared.
  3. For DTC C0277 4B a successful brake pedal position sensor calibration has been performed.
  4. A history DTC will clear once 50 malfunction-free ignition cycles have occurred.
  5. A DTC will not clear the current status until the next ignition cycle.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

DTC C0277 06, C0277 07, C0890 03 and C0890 07

  1. Ignition OFF, disconnect the harness connector at the brake pedal position sensor.
  2. Ignition ON, verify that a test lamp illuminates between B+ and the low reference circuit terminal 1. If the test lamp does not illuminate, test the low reference circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  3. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 2 and ground. If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Verify the scan tool BPP Sensor parameter is less than 100 counts. If greater than the specified range, test the signal circuit terminal 3 for a short to voltage. If the circuit tests normal, replace the BCM.
  5. Install a 3 A fused jumper wire between the signal circuit terminal 3 and the 5 V reference circuit terminal 2. Verify the scan tool BPP Sensor parameter is greater than 400 counts. If less than the specified range, test the signal circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  6. If all circuits test normal, replace the brake pedal position sensor.

DTC C0277 09

  1. Replace the brake pedal position sensor.
  2. Perform the brake pedal position sensor recalibration procedure. Refer to «Brake Pedal Position Sensor Calibration»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system__brake-pedal-position-sensor-calibration) .
  3. Operate the vehicle within the Conditions for Running and Setting the DTC and verify the DTC does not reset. If the DTC resets, replace the BCM.

DTC C0277 4B

  1. Verify that the DTC sets under the Conditions for Running and Setting.
  2. Perform the brake pedal position sensor recalibration procedure. Refer to «Brake Pedal Position Sensor Calibration»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system__brake-pedal-position-sensor-calibration) .
  3. Operate the vehicle within the conditions that the customer experienced and verify the DTC does not reset. If the DTC resets, replace the brake pedal position sensor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Stop Lamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system__stop-lamp-switch-replacement)
  2. «Brake Pedal Position Sensor Calibration»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system__brake-pedal-position-sensor-calibration)
  3. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
BCM B+ Terminal 4 X4B3445 00B3445 00
Brake Pedal Position Sensor 5 V ReferenceC0277 06, C0890 03, C0161 71C0277 06, C0161 71C0277 07, C0161 71
Brake Applied Signal Terminal 6 X5C0297 00, P0571 0033
Brake Pedal Position Sensor SignalC0277 06, C0161 71C0277 06, C0161 71C0277 07, C0161 71C0277 09
Stop Lamp Relay ControlB3445 0011
Brake Position Sensor Low Reference11
Center High Mounted Stop Lamp (CHMSL) Ground2
Left Rear Tail/Stop Lamp Ground1
Right Rear Tail/Stop Lamp Ground1
1. Stop Lamps Malfunction 2. Center High Mounted Stop Lamp (CHMSL) Malfunction 3. Cruise Control Malfunction

The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The body control module (BCM) provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the stop lamp control circuit illuminating the left and right stop lamps and the center high mounted stop lamp (CHMSL). The BCM also applies battery voltage to the transmission control module (TCM) and engine control module (ECM) via the brake applied signal circuit.

  1. Battery voltage must be between 9-16 V.
  2. Brakes APPLIED.

The BCM detects a short to ground in the brake applied signal circuit.

The Service Vehicle Soon indicator is commanded ON.

  1. The condition responsible for setting the DTC no longer exists.
  2. A history DTC will clear once 100 malfunction-free ignition cycles have occurred.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the X1 harness connector at the ECM.
  2. Disconnect the harness connector at the TCM.
  3. Connect a test lamp between the signal circuit terminal 57 at the ECM harness connector and ground.
  4. Ignition ON, command the stop lamps ON and OFF by applying and releasing the brake pedal. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Ignition OFF, connect a test lamp between the signal circuit terminal 57 at the ECM harness connector and the connector terminal at the ECM.
  6. Ignition ON, command the stop lamps ON and OFF by applying and releasing the brake pedal. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp does not turn ON and OFF when commanded, replace the ECM.
  7. Ignition OFF, connect a test lamp between the signal circuit terminal 10 at the TCM harness connector and ground.
  8. Ignition ON, command the stop lamps ON and OFF by applying and releasing the brake pedal. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  9. If all circuits test normal, replace the TCM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Brake Pedal Position Sensor Calibration»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system__brake-pedal-position-sensor-calibration)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM, ECM or TCM replacement, setup and programming

Symptoms - Lighting

IMPORTANTThe following steps must be completed before doing the Symptom tables.
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) . No DTCs are set. The control modules can communicate via the serial data link.
  2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following: «Exterior Lighting Systems Description and Operation»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system) «Interior Lighting Systems Description and Operation»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)

Visual/Physical Inspection

  1. Inspect for aftermarket devices which could affect the operation of the lighting system. Refer to «Checking Aftermarket Accessories»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__checking-aftermarket-accessories) .
  2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

  1. «Backup Lamps Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Courtesy Lamps Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  3. «Daytime Running Lamps Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  4. «Front Fog Lamps Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  5. «Hazard Lamps Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  6. «Headlamps Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  7. «Interior Backlighting Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  8. «Park, License, and/or Tail Lamps Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  9. «Stop Lamps Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  10. «Turn Signal Lamps and/or Indicators Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Backup Lamps ControlB2545 0011
Backup Lamp - Left Ground1
Backup Lamp - Right Ground1
1. Backup Lamps Malfunction

When the transmission is placed in the REVERSE position, the transmission control module (TCM) sends a serial data message to the body control module (BCM). The message indicates that the gear selector is in the REVERSE position. The BCM applies battery voltage to the backup lamps and inside rearview mirror. Once the driver moves the gear selector out of the REVERSE position, a message is sent by the TCM via serial data requesting the BCM to remove battery voltage from the backup lamp control circuit. The engine may need to be running for the backup lamps to function.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the harness connector at the appropriate backup lamp.
  2. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal B and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the control circuit terminal A and ground.
  4. Command the Backup Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test the BACK UP STOP fuse B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the backup lamp.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Tail Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Inside Rearview Mirror Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/mirrors/#mirror-system)
  3. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Body Control Module (BCM) VB2 Fuse B+ Terminal 2 X311
Body Control Module (BCM) VB5 Fuse B+ Terminal 2 X411
Courtesy Lamp Defeat Switch Signal333
Courtesy Lamp Control11
Underseat Light Control444
Courtesy Lamp Defeat Ground3
Courtesy Lamp - Left Front Door Ground1
Courtesy Lamp - Right Front Door Ground1
Courtesy/Reading Lamps - Second Row Ground1
Dome Lamp Ground1
I/P Compartment Lamp Switch Ground1
Ignition Switch Ground1
Sunshade Lamp - Left Ground2
Sunshade Lamp - Right Ground2
Rear Compartment Courtesy Lamp Ground - Left4
Rear Compartment Courtesy Lamp Ground - Right1
Underseat Light - Driver4
Underseat Light - Passenger4
1. Courtesy Lamps Malfunction 2. Sunshade Lamps Malfunction 3. Courtesy Lamp Defeat Malfunction 4. Underseat Light Malfunction

The body control module (BCM) applies battery voltage to the courtesy lamps through 2 separately controlled courtesy lamp supply voltage circuits. When any door is opened, the door ajar switch contacts close and the BCM receives a door-ajar input. If the BCM receives a door lock or unlock input or a rear hatch open input, the BCM will activate the courtesy lamp supply voltage circuits, providing battery voltage to all of the instrument panel (I/P) courtesy lamps, dome lamps, rearview mirror lamps and rear compartment lamps. In the event that any of these lamps were to remain illuminated for more than 20 minutes with the ignition switch in the OFF position, the BCM will deactivate the courtesy lamp control circuits to prevent a total battery discharge condition.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON, doors CLOSED, observe the scan tool Ctsy. Lamp Actv. Reason parameter while turning the courtesy lamp defeat switch ON and OFF. The parameter should change between Off and Manual Defeat. If the parameter does not change between the commanded states, refer to Courtesy Lamp Defeat Switch Malfunction. If the parameter changes between the commanded states, refer to Courtesy Lamps Malfunction.
  2. Ignition ON, courtesy lamp defeat switch OFF, observe the scan tool Ctsy. Lamp Actv. Reason parameter while opening and closing each door. The parameter should change between Door Open and Off. If the parameter does not change as each door is opened and closed, refer to «Door Ajar Indicator Malfunction»(/chevrolet/captiva/i-2-2013-2016/remont/door-locks-anti-theft-systems/#power-door-lock-system-and-release-systems) .

Courtesy Lamp Defeat Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the front dome lamp.
  2. Ignition OFF, scan tool OFF, doors CLOSED, interior lamps OFF, test for less than 5 ohms between the ground circuit terminal 4 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, all doors CLOSED, verify the scan tool Ctsy. Lamp Actv. Reason parameter is Off. If not the specified value, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3 A fused jumper wire between the signal circuit terminal 2 and ground. Verify the scan tool Ctsy. Lamp Actv. Reason parameter is Manual Defeat. If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, replace the courtesy lamp defeat switch.

Courtesy Lamps Malfunction

  1. Ignition OFF, disconnect the harness connector at the appropriate courtesy lamp.
  2. Ignition OFF, scan tool OFF, doors CLOSED, interior lamps OFF, test for less than 5 ohms between the appropriate ground circuit terminal listed below and ground. Courtesy lamp - left front door terminal 2 Courtesy lamp - right front door terminal 2 Courtesy/reading lamp 2nd row terminal B - with UUC Courtesy/reading lamp 2nd row terminal 2 - without UUC Front dome lamp terminal 4 Ignition key lamp terminal F I/P compartment lamp terminal 1 Rear compartment courtesy lamp - left terminal 1 Rear compartment courtesy lamp - right terminal 1 Sunshade - left terminal B Sunshade - right terminal B If greater than the specified range, test the appropriate ground circuit for an open/high resistance.
  3. Connect a test lamp between the appropriate control circuit terminal listed below and ground. Courtesy lamp - left front door terminal 1 Courtesy lamp - right front door terminal 1 Courtesy/reading lamp 2nd row terminal C - with UUC Courtesy/reading lamp 2nd row terminal 3 - without UUC Front dome lamp terminal 3 Ignition key lamp terminal E I/P compartment lamp terminal 2 Rear compartment courtesy lamp - left terminal 2 Rear compartment courtesy lamp - right terminal 2 Sunshade - left terminal A Sunshade - right terminal A
  4. Command the Courtesy Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, replace the courtesy lamp.

Reading Lamps Malfunction

  1. Ignition OFF, disconnect the harness connector at the appropriate courtesy/reading lamp assembly.
  2. Ignition OFF, scan tool OFF, doors CLOSED, interior lamps OFF, test for less than 5 ohms between the appropriate ground circuit terminal listed below and ground. Courtesy/reading lamp 2nd row terminal B - with UUC Courtesy/reading lamp 2nd row terminal 2 - without UUC Front dome lamp terminal 4 If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify that a test lamp illuminates between the appropriate control circuit terminal listed below and ground. Courtesy/reading lamp 2nd row terminal A - with UUC Courtesy/reading lamp 2nd row terminal 4 - without UUC Front dome lamp terminal 3 If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  4. Remove the BCM VB2 fuse and verify the test lamp turns OFF. If the test lamp remains illuminated, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, replace the courtesy/reading lamp assembly.

Underseat lamp Malfunction

  1. Ignition OFF, disconnect the harness connector at the appropriate underseat lamp.
  2. Ignition OFF, test for less than 5 ohms between the ground circuit terminal D and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, park lamps ON, verify that a test lamp illuminates between the control circuit terminal B and ground. If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the headlamp switch.
  4. Verify that a test lamp illuminates between the control circuit terminal C and ground. If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the headlamp.
  5. Ignition ON, park lamps OFF, verify that a test lamp does not illuminate between the control circuit terminal B and ground. If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the headlamp switch.
  6. Verify that a test lamp does not illuminate between the control circuit terminal C and ground. If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the headlamp switch.
  7. If all circuits test normal, replace the underseat lamp.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Reading Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Door Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  3. «Ignition Lock Cylinder Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  4. «Overhead Console Reading Lamp and Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  5. «Instrument Panel Compartment Lamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  6. «Sunshade Illuminated Mirror Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  7. «Dome Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  8. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  9. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Ambient Light Sensor SignalB2645 03B2645 07B2645 07
DRL Relay Control22B2600 00
Headlamp - Left Low Beam Control111
Headlamp - Right Low Beam Control111
Ambient Light Sensor GroundB2645 07
Headlamp - Left Low Beam Ground1
Headlamp - Right Low Beam Ground1
1. Headlamps Malfunction 2. Daytime Running Lamps Malfunction

The ambient light sensor is used to monitor outside lighting conditions. The ambient light sensor provides a voltage signal that will vary between 0.2 and 4.9 V depending on outside lighting conditions. The body control module (BCM) provides a 5 V reference signal to the ambient light sensor. The body control module (BCM) monitors the ambient light sensor signal circuit to determine if outside lighting conditions are correct for either daytime running lights (DRL) or automatic lamp control (ALC) when the headlamp switch is in the AUTO position. In daylight conditions, the BCM will command the DRLs ON by applying ground to the DRL relay via the DRL relay control circuit. When the BCM applies ground to the DRL relay control circuit, the DRL relay coil energizes causing the relay switch contacts to close. With the DRL relay energized, voltage is applied through the relay switch contacts, the DRL Resistor and the DRL fuse to the left and right low beam headlamp fuses illuminating the low beam headlamps. Any function or condition that turns the headlamps ON will cancel DRL operation. Any function or condition that turns on the headlamps will cancel DRL operation.

Diagnostic Aids

Note. This diagnostic procedure assumes that the low beam headlamps are operating within specifications. If the low beam headlamps are inoperative, diagnose the low beam headlamp malfunction before proceeding with the following diagnostic. Refer to Headlamps Malfunction .

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition OFF, disconnect the DRL relay.
  2. Ignition ON, headlamps OFF, verify a test lamp does not illuminate between the control circuit terminal 87 and ground. If the test lamp illuminates, test the control circuit for a short to voltage.
  3. Verify a test lamp illuminates between the B+ circuit terminal 30 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 87 for a short to ground. If the circuit tests normal, test or replace the DRL relay.
  4. Verify a test lamp illuminates between the B+ circuit terminal 85 and ground. If the test lamp does not illuminate, test the B+ circuit for an open/high resistance.
  5. Connect a 15 A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the low beam headlamps illuminate. If the low beam headlamps do not illuminate, test the control circuit for a short to ground or an open/high resistance.
  6. Connect a test lamp between the B+ circuit terminal 85 and the control circuit terminal 86.
  7. Command the DRL ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  8. If all circuits test normal, test or replace the DRL relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions__relay-replacement-within-an-electrical-center) , «Relay Replacement (Attached to Wire Harness)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  2. «Instrument Panel Wiring Harness Junction Block Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  3. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, programming and setup
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Front Fog Lamp Switch Signal222
Front Fog Lamp Relay Control11B2530 00
Front Fog Lamp Control111
Fog Lamp - LF Ground1
Fog Lamp - RF Ground1
Fog Lamp Switch Ground2
1. Front Fog Lamps Malfunction 2. Front Fog Lamp Switch Malfunction

The front fog lamp relay coil is supplied with battery voltage when the ignition is in the RUN or CRANK position. The front fog lamp relay switch is supplied with battery voltage at all times. The front fog lamp switch signal circuit is grounded momentarily by pressing the front fog lamp switch. The body control module (BCM) energizes the front fog lamp relay by applying ground to the front fog lamp relay control circuit. When the front fog lamp relay is energized, the relay switch contacts close and battery voltage is applied through the FRONT FOG fuse to the front fog lamp control circuit which illuminates the front fog lamps.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON, observe the scan tool Front Fog Lamp Switch parameter while activating the front fog lamp switch. The parameter should change between Active and Inactive. If the parameter does not change between the commanded states, refer to Fog Lamp Switch Malfunction.
  2. Turn the front fog lamps ON and OFF with the front fog lamps switch. The front fog lamps should turn ON and OFF as selected. If the front fog lamps do not change between the selected states, refer to Fog Lamps Malfunction.
  3. Command the Display Test ON and OFF with a scan tool. The front fog lamps indicator should turn ON and OFF when changing between the commanded states. If the front fog lamps indicator illuminates during the test, replace the BCM. If the front fog lamps indicator does not illuminate during the test or remains illuminated at all times, replace the instrument cluster.

Fog Lamp Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Ignition OFF, verify a test lamp illuminates between B+ and the ground circuit terminal 4. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Front Fog Lamp Switch parameter is Inactive. If not the specified value, test the signal circuit terminal 1 for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3 A fused jumper wire between the signal circuit terminal 1 and. Verify the scan tool Front Fog Lamp Switch parameter is Active. If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the headlamp switch.

Fog Lamps Malfunction

  1. Ignition OFF, disconnect the front fog lamp relay.
  2. Ignition ON, verify a test lamp does not illuminate between the control circuit terminal 87 and ground. If the test lamp illuminates, test the control circuit for a short to voltage.
  3. Verify a test lamp illuminates between the B+ circuit terminal 30 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 86 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  5. Disconnect the harness connector at the appropriate front fog lamp.
  6. Ignition OFF, test for less than 5 ohms between the ground circuit terminal B and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  7. Connect the harness connector at the front fog lamp.
  8. Connect a 15 A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the front fog lamps illuminate. If the front fog lamps do not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the inoperative front fog lamp.
  9. Connect a test lamp between the B+ circuit terminal 86 and the control circuit terminal 85.
  10. Command the front fog lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or open/high resistance. If the circuit tests normal, replace the BCM.
  11. If all circuits test normal, test or replace the front fog lamp relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions__relay-replacement-within-an-electrical-center) , «Relay Replacement (Attached to Wire Harness)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  2. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  3. «Front Fog Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  4. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM or IPC replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Hazard Switch Signal111
Hazard Switch Ground1
1. Hazard Lamps Malfunction

The hazard flashers may be activated in any power mode. The hazard switch is located on the I/P control panel and is permanently grounded through G201. When the hazard switch is placed in the ON position, ground is applied through the hazard switch signal circuit to the body control module (BCM). The BCM supplies battery voltage to all four turn signal lamps in an ON and OFF duty cycle. When the hazard switch is activated, the BCM sends a serial data message to the instrument panel cluster (IPC) requesting both turn signal indicators to be cycled ON and OFF.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Hazard Lamps Malfunction

  1. Ignition OFF, disconnect the harness connector at the hazard switch.
  2. Ignition OFF, verify a test lamp illuminates between B+ and the ground circuit terminal 16. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Hazard Lamp Switch parameter is Inactive. If not the specified value, test the signal circuit terminal 7 for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3A fused jumper wire between the signal circuit terminal 7 and ground. Verify the scan tool Hazard Lamp Switch parameter is Active. If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, replace the hazard switch.

Hazard Lamp Indicators Malfunction

Ignition ON, with a scan tool perform the Display Test for the instrument panel cluster (IPC) and observe both turn signal indicators.

  1. If both turn signal indicators illuminate during the test, replace the BCM.
  2. If both turn signal indicators do not illuminate during the test or remain illuminated at all times, replace the IPC.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Hazard Warning Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Flash to Pass Switch Signal444
Headlamp Switch High Beam Signal444
Headlamp Switch Headlamps ON SignalB257A 0011
Headlamp Switch Headlamps OFF SignalB257A 0011
Headlamp High Beam Relay Control33B2580 00
Headlamp Low Beam Relay Control22B2575 00
LF High Beam Headlamp Control333
LF Low Beam Headlamp Control222
RF High Beam Headlamp Control333
RF Low Beam Headlamp Control222
LF Headlamp Ground2
RF Headlamp Ground2
Headlamp Switch Ground2
Turn Signal/Multifunction Switch Ground4
1. Headlamp Switch Malfunction 2. Headlamps Malfunction - Low Beam 3. Headlamps Malfunction - High Beam 4. Turn Signal/Multifunction Switch Malfunction

When the headlamp switch is placed in the headlamp ON position, ground is applied to the body control module (BCM) through the headlamp ON signal circuit. The BCM then applies ground to the headlamp low beam relay control circuit which energizes the low beam relay. With the low beam relay energized, the switch contacts close allowing battery voltage to flow through the HDLP LO beam fuses to the low beam headlamps.

When the turn signal/multifunction switch is placed in the headlamps high or flash to pass (FTP) position, ground is applied to the body control module (BCM) through the headlamp high beam signal circuit or the flash to pass switch signal circuit. The BCM applies ground to the headlamp high beam relay control circuit which energizes the high beam relay. With the high beam relay energized, the switch contacts close allowing battery voltage to flow through the HDLP HI beam fuses to the high beam headlamps. With the headlamp dimmer switch in the high beam position the BCM sends a serial data message to the instrument panel cluster (IPC) requesting the IPC to illuminate the high beam indicator.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON, observe the scan tool Headlamp On Switch parameter while turning the headlamp switch ON and OFF. The reading should change between Active and Inactive. If the reading does not change between the specified values, refer to Headlamp Switch Malfunction.
  2. Observe the scan tool Headlamp Off Switch parameter while turning the headlamp switch ON and OFF. The reading should change between Active and Inactive. If the reading does not change between the specified values, refer to Headlamp Switch Malfunction.
  3. Observe the scan tool Flash to Pass Switch parameter while applying and releasing the turn signal/multifunction switch. The reading should toggle between Active and Inactive. If the reading does not change between the specified values, refer to Turn Signal/Multifunction Switch Malfunction.
  4. Observe the scan tool High Beam Select switch parameter while applying and releasing the high beam select switch. The reading should toggle between Active and Inactive. If the reading does not change between the commanded states, refer to Turn Signal/Multifunction Switch Malfunction.
  5. Command the Headlamps ON and OFF with a scan tool. The low beam headlamps should turn ON and OFF when commanded. If the low beam headlamps do not turn ON and OFF when commanded, refer to Headlamps Malfunction - Low Beam.
  6. Command the High Beams ON and OFF with a scan tool. The high beam headlamps should turn ON and OFF when commanded. If the high beam headlamps do not turn ON and OFF when commanded, refer to Headlamps Malfunction - High Beam.
  7. Command the Display Test ON and OFF with a scan tool. The lights on indicator and high beam indicator should turn ON and OFF when changing between the commanded states. If the lights on indicator and high beam indicator illuminate during the test, replace the BCM. If the lights on indicator and high beam indicator do not illuminate during the test or remain illuminated at all times, replace the instrument cluster.

Headlamp Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Ignition OFF, verify that a test lamp illuminates between B+ and the ground circuit terminal 4. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Headlamp Switch parameter is Inactive. If not the specified value, test the signal circuit terminal 6 for a short to ground. If the circuit tests normal, replace the BCM.
  4. Verify the scan tool Auto Hdlp. Disable Sw. parameter is Inactive. If not the specified value, test the signal circuit terminal 8 for a short to ground. If the circuit tests normal, replace the BCM.
  5. Install a 3 A fused jumper wire between the signal circuit terminal 6 and ground. Verify the scan tool Headlamp Switch parameter is Active. If not the specified value, test the signal circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM.
  6. Install a 3 A fused jumper wire between the signal circuit terminal 8 and ground. Verify the scan tool Auto Hdlp. Disable Sw. parameter is Active. If not the specified value, test the signal circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM.
  7. If all circuits test normal, test or replace the headlamp switch.

Turn Signal/Multifunction Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the turn signal/multifunction switch.
  2. Ignition OFF, verify that a test lamp illuminates between B+ and the appropriate ground circuit terminal listed below. Ground terminal A - with MH2 Ground terminal G - without MH2 If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Flash to Pass Switch parameter is Inactive. If not the specified value, test the appropriate signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the BCM. Signal terminal C - with LE5 and MH2 Signal terminal J - without LE5 and MH2
  4. Verify the scan tool High Beam Select Switch parameter is Inactive. If not the specified value, test the appropriate signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the BCM. Signal terminal B - with LE5 and MH2 Signal terminal H - without LE5 and MH2
  5. Install a 3 A fused jumper wire between the appropriate signal circuit terminal listed below and ground. Verify the scan tool Flash to Pass Switch parameter is Active. Signal terminal C - with LE5 and MH2 Signal terminal J - without LE5 and MH2 If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  6. Install a 3 A fused jumper wire between the appropriate signal circuit terminal listed below and ground. Verify the scan tool High Beam Select Switch parameter is Active. Signal terminal B - with LE5 and MH2 Signal terminal H - without LE5 and MH2 If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  7. If all circuits test normal, test or replace the turn signal/multifunction switch.

Headlamps Malfunction - Low Beam

  1. Ignition OFF, remove the DRL fuse and disconnect the low beam relay.
  2. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 87 and ground. If the test lamp illuminates, test the control circuit for a short to voltage.
  3. Verify that a test lamp illuminates between the B+ circuit terminal 30 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 87 for a short to ground. If the circuit tests normal, test or replace the low beam relay.
  4. Verify that a test lamp illuminates between the B+ circuit terminal 85 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  5. Disconnect the harness connector at the appropriate low beam headlamp.
  6. Ignition OFF, scan tool OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal B and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  7. Connect the harness connector at the low beam headlamp.
  8. Connect a 20 A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the low beam headlamps illuminate. If the low beam headlamps do not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the low beam headlamp.
  9. Connect a test lamp between the B+ circuit terminal 85 and the control circuit terminal 86.
  10. Command the Low Beam headlamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. If all circuits test normal, test or replace the low beam relay.

Headlamps Malfunction - High Beam

  1. Ignition OFF, remove the DRL fuse and disconnect the high beam relay.
  2. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 87 and ground. If the test lamp illuminates, test the control circuit for a short to voltage.
  3. Verify that a test lamp illuminates between the B+ circuit terminal 30 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 87 for a short to ground. If the circuit tests normal, test or replace the high beam relay.
  4. Verify that a test lamp illuminates between the B+ circuit terminal 85 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  5. Disconnect the harness connector at the appropriate high beam headlamp.
  6. Ignition OFF, scan tool OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal B and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  7. Connect the harness connector at the high beam headlamp.
  8. Connect a 20 A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the high beam headlamps illuminate. If the high beam headlamps do not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the high beam headlamp.
  9. Connect a test lamp between the B+ circuit terminal 85 and the control circuit terminal 86.
  10. Command the High Beam headlamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM. If all circuits test normal, test or replace the high beam relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Headlamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  3. «Headlamp Bulb Replacement (High Beam)»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system) , «Headlamp Bulb Replacement (Low Beam)»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  4. «Relay Replacement (Within an Electrical Center)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions__relay-replacement-within-an-electrical-center) , «Relay Replacement (Attached to Wire Harness)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  5. «Turn Signal Multifunction Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/steering-column-switches/#steering-wheel-and-steering-column)
  6. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM or IPC replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
DIM Fuse B+ Terminal 2 X2B1395 03B1395 03
DIM Fuse B+B2652 00B2652 00
I/P Dimmer Switch B+ Voltage ReferenceB1395 03, B3600 03B3600 03
I/P Lamps Dimmer Switch SignalB2652 0022
I/P Dimmer Switch SignalB1395 03, B3600 03B3600 031
LED Backlight Dimming ControlB2610 0033
I/P dimmer Switch Ground1
1. Dimmer Switch Malfunction 2. Interior Backlighting Malfunction - Incandescent 3. Interior Backlighting Malfunction - LED

The instrument panel (I/P) lamp dimmer switch is used to increase and decrease the brightness of the interior backlighting components. The I/P dimmer switch provides a voltage signal that will increase as the brightness of the lights are increased and decrease as the brightness of the lights are decreased. The body control module (BCM) provides a B+ voltage reference to the I/P dimmer switch. When the I/P dimmer switch is placed in the desired position, the dimmed voltage setting is applied from the I/P dimmer switch through the I/P dimmer switch signal circuit to the BCM. The BCM interprets the signal and applies the dimmed voltage to the I/P lamps supply voltage circuit and the interior backlighting components dim to the requested level.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, observe the scan tool Dimming Control Signal parameter while operating the dimmer switch from high to low. The parameter should change from a high percent to a low percent as the switch is activated.

  1. If the parameter does not change, refer to I/P Dimmer Switch Malfunction.
  2. If the parameter changes, refer to Interior Backlighting Malfunction.

I/P Dimmer Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Ignition OFF, verify that a test lamp illuminates between B+ and the ground circuit terminal 4. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Dimming Control Signal parameter is less than 0.0 V. If greater than the specified range, test the signal circuit terminal 13 for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Ignition ON, test for B+ between the voltage reference circuit terminal 12 and ground. If less than the specified value, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Install a 3 A fused jumper wire between the signal circuit terminal 13 and the voltage reference circuit terminal 12. Verify the scan tool Dimming Control Signal parameter is greater than 2.5 V. If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  6. If all circuits test normal, test or replace the headlamp switch.

Interior Backlighting Malfunction

  1. Ignition OFF, disconnect the harness connector at any component with inoperative backlighting.
  2. Ignition OFF, scan tool disconnected, interior lamps OFF, doors CLOSED, test for less than 5 ohms between the ground circuit and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the control circuit and ground.
  4. Command the Interior Dimming ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the component with the inoperative backlighting.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. Refer to the appropriate replacement procedure for the lighting component that requires replacement.
  3. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, programming and setup
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Park Lamp Switch ON Signal222
Park Lamp Relay Control11B2585 00
Park Lamp Control111
License Lamp Ground1
Park Lamps - LF Ground1
Park Lamps - RF Ground1
Tail/Stop Lamps - LR Ground1
Tail/Stop Lamps - RR Ground1
Headlamp Switch Ground2
1. Park, License, and/or Tail Lamps Malfunction 2. Park Lamp Switch Malfunction

Battery voltage is applied at all times to both the coil and switch sides of the PARK LAMP relay located in the underhood fuse block. The headlamp switch is suppled with ground at all times. When the headlamp switch is placed in either the HEAD or PARK position, ground is applied to the park lamp signal circuit to the body control module (BCM). The BCM responds by applying ground to the park lamp relay control circuit. This energizes the park lamp relay coil causing the relay switch contacts to close allowing battery voltage to flow through the T/LAMP LT and T/LAMP RT fuses to all of the park, tail, license and marker lamps.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, observe the scan tool Parklamp Switch parameter while cycling the park lamp switch ON and OFF. The parameter should change between Active and Inactive.

  1. If the parameter does not change between the commanded states, refer to Park Lamp Switch Malfunction.
  2. If the parameter changes between the commanded states, refer to Park, License, and/or Tail Lamps Malfunction.

Park Lamp Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Ignition OFF, verify a test lamp illuminates between B+ and the ground circuit terminal 4. If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Parklamp Switch parameter is Inactive. If not the specified value, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3 A fused jumper wire between the signal circuit terminal 2 and ground. Verify the scan tool Parklamp Switch parameter is Active If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the headlamp switch.

Park, License, and/or Tail Lamps Malfunction

  1. Ignition OFF, remove the fuse of the appropriate park/marker lamps and inspect. If the fuse is OPEN, test the control circuit of the blown fuse for a short to ground.
  2. Install the fuse.
  3. Ignition OFF, disconnect the park lamp relay.
  4. Ignition ON, verify a test lamp does not illuminate between the control circuit terminal 87 and ground. If the test lamp illuminates, test the control circuit for a short to voltage.
  5. Verify a test lamp illuminates between the B+ circuit terminal 30 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the control circuit terminal 87 for a short to ground. If the circuit tests normal, test or replace the park lamp relay.
  6. Verify a test lamp illuminates between the B+ circuit terminal 85 and ground. If the test lamp does not illuminate, test the B+ circuit for an open/high resistance.
  7. Disconnect the harness connector at the appropriate park/license/marker lamp.
  8. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  9. Connect the harness connector at the park/license/marker lamp.
  10. Connect a 20A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the park/license/marker lamps illuminate. If the park/license/marker lamps do not illuminate, test the control circuit for an open/high resistance. If the circuit tests normal, replace the park/license/marker lamp.
  11. Connect a test lamp between the B+ circuit terminal 85 and the control circuit terminal 86.
  12. Command the Parking Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  13. If all circuits test normal, test or replace the park lamp relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Front Side Marker Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Front Side Marker Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  3. «Rear Side Marker Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  4. «Rear Side Marker Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  5. «Front Side Turn Signal Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  6. «Parking and Turn Signal Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  7. «Rear License Plate Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  8. «Tail Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  9. «Tail Lamp Bulb Replacement (Stop Lamp)»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system) , «Tail Lamp Bulb Replacement (Back Up and Turn Signal)»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  10. «Relay Replacement (Within an Electrical Center)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions__relay-replacement-within-an-electrical-center) , «Relay Replacement (Attached to Wire Harness)»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
  11. «Headlamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  12. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
BCM B+ Terminal 4 X4B3445 00B3445 00
Brake Pedal Position Sensor 5 V ReferenceC0277 06, C0890 03, C0161 71C0277 06, C0161 71C0277 07, C0161 71
Brake Applied Signal Terminal 6 X5C0297 00, P0571 0033
Brake Pedal Position Sensor SignalC0277 06, C0161 71C0277 06, C0161 71C0277 07, C0161 71C0277 09
Stop Lamp Relay ControlB3445 0011
Brake Position Sensor Low Reference11
Center High Mounted Stop Lamp (CHMSL) Ground2
Left Rear Tail/Stop Lamp Ground1
Right Rear Tail/Stop Lamp Ground1
1. Stop Lamps Malfunction 2. Center High Mounted Stop Lamp (CHMSL) Malfunction 3. Cruise Control Malfunction

The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The body control module (BCM) provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the stop lamp control circuit illuminating the left and right stop lamps and the center high mounted stop lamp (CHMSL). The BCM also applies battery voltage to the transmission control module (TCM) and engine control module (ECM) via the brake applied signal circuit.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON, observe the scan tool Brake Applied Output Signal parameter while pressing and releasing the brake pedal. The parameter should change between ON and OFF as the brake pedal is applied and released. If the parameter does not change between the commanded states, refer to the Brake Pedal Position Sensor Malfunction.
  2. Observe the left and right stop lamps while applying and releasing the brake pedal. The stop lamps should turn ON and OFF as the brake pedal is applied and released. If the left or right stop lamps do not turn ON and OFF when changing between the commanded states, refer to Stop Lamps Malfunction.
  3. Observe the center high mount stop lamp while pressing and releasing the brake pedal. The center high mount stop lamp should turn ON and OFF as the brake pedal is applied and released. If the center high mount stop lamp does not turn ON and OFF when changing between the commanded states, refer to Center High Mount Stop Lamp Malfunction.

Brake Pedal Position Sensor Malfunction

  1. Ignition OFF, disconnect the harness connector at the brake pedal position sensor.
  2. Ignition ON, verify that a test lamp does not illuminate between the low reference circuit terminal 1 and ground. If the test lamp illuminates, test the low reference circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  3. Ignition ON, test for 4.8 V and 5.2 V between the 5 V reference circuit terminal 2 and ground. If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  4. If all circuits test normal, replace the brake pedal position sensor.

Stop Lamps Malfunction

  1. Ignition OFF, disconnect the X4 harness connector at the BCM.
  2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 4 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Ignition OFF, connect the X4 harness connector at the BCM.
  4. Disconnect the stop lamp relay.
  5. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal 86 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  6. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 87 and ground. If the test lamp illuminates, test the control circuit for a short to voltage.
  7. Verify that a test lamp illuminates between the B+ circuit terminal 30 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test the relay control circuit terminal 87 for a short to ground. If the circuit tests normal, replace the stop lamp relay.
  8. Disconnect the harness connector at the appropriate stop lamp.
  9. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal C and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  10. Connect the harness connector at the stop lamp.
  11. Connect a 10A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the stop lamps are activated. If the stop lamps do not activate, test the control circuit for an open/high resistance. If the circuit tests normal, replace the inoperative stop lamp.
  12. Connect a test lamp between the control circuit terminal 85 and the ground circuit terminal 86.
  13. Ignition ON, command the stop lamps ON and OFF by applying and releasing the brake pedal. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  14. If all circuits test normal, replace the stop lamp relay.

Center High Mounted Stop Lamp Malfunction

  1. Ignition OFF, disconnect the harness connector at the center high mount stop lamp.
  2. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the ground circuit terminal 2 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Connect a test lamp between the control circuit terminal 1 and ground.
  4. Ignition ON, command the stop lamps ON and OFF by applying and releasing the brake pedal. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, replace the center high mount stop lamp.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «High Mount Stop Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Tail Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  3. «Stop Lamp Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system__stop-lamp-switch-replacement)
  4. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/chevrolet/captiva/i-2-2013-2016/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Body Control Module (BCM) VB3 Fuse B+ Terminal 1 X411
Body Control Module (BCM) VB6 Fuse B+ Terminal 3 X411
Hazard Switch Signal222
Left Turn Signal Switch Signal333
Right Turn Signal Switch Signal333
Left Front Turn Signal Lamp Control111
Right Front Turn Signal Lamp Control111
Left Rear Turn Lamp Control111
Right Rear Turn Lamp Control111
Hazard Switch Ground2
Left Rear Stop/Turn Lamp Ground1
Left Repeater Lamp Ground1
Right Repeater Lamp Ground1
Right Rear Stop/Turn Lamp Ground1
Turn Signal/Multifunction Switch Ground3
Turn Signal Lamp - LF Ground1
Turn Signal Lamp - RF Ground1
1. Turn Signal Lamps and/or Indicators Malfunction 2. Hazard Lamps Malfunction 3. Turn Signal Switch Malfunction

Ground is applied at all times to the turn signal/multifunction switch. The turn signal lamps may only be activated with the ignition switch in the ON or START position. When the turn signal/multifunction switch is placed in either the TURN RIGHT or TURN LEFT position, ground is applied to the body control module (BCM) through either the right turn or left turn signal switch signal circuit. The BCM then applies a pulsating voltage to the front and rear turn signal lamps through there respective voltage supply circuits. When a turn signal request is received by the BCM, a serial data message is sent to the instrument panel cluster (IPC) requesting the respective turn signal indicator be pulsed ON and OFF.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/captiva/i-2-2013-2016/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON, observe the scan tool Right Turn Signal Switch and Left Turn Signal Switch parameters while cycling the turn signal switch between the right and left positions. The readings should change between Active and Inactive. If the parameters do not change between the selected states, refer to Turn Signal Switch Malfunction.
  2. Ignition ON, observe the right and left turn signal lamps while cycling the turn signal switch between the right and left positions. Verify the turn signal lamps turn ON and OFF. If the turn signal lamps do not cycle between the selected states, refer to Turn Signal Lamps Malfunction.
  3. Command the Display Test ON and OFF with a scan tool. The left and right turn signal indicators should turn ON and OFF when changing between the commanded states. If the left and right turn signal indicators illuminate during the test, replace the BCM. If the left and right turn signal indicators do not illuminate during the test or remain illuminated at all times, replace the instrument cluster.

Turn Signal Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the turn signal/multifunction switch.
  2. Ignition OFF, verify that a test lamp illuminates between B+ and the appropriate ground circuit terminal listed below. Ground terminal F - with LE5 and MH2 Ground terminal M - without LE5 and MH2 If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Left Turn Signal Switch parameter is Inactive. If not the specified value, test the appropriate signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the BCM. Signal terminal D - with LE5 and MH2 Signal terminal K - without LE5 and MH2
  4. Verify the scan tool Right Turn Signal Switch parameter is Inactive. If not the specified value, test the appropriate signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the BCM. Signal terminal E - with LE5 and MH2 Signal terminal L - without LE5 and MH2
  5. Install a 3 A fused jumper wire between the appropriate signal circuit terminal listed below and ground. Verify the scan tool Left Turn Signal Switch parameter is Active. Signal terminal D - with LE5 and MH2 Signal terminal K - without LE5 and MH2 If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  6. Install a 3 A fused jumper wire between the appropriate signal circuit terminal listed below and ground. Verify the scan tool Right Turn Signal Switch parameter is Active. Signal terminal E - with LE5 and MH2 Signal terminal L - without LE5 and MH2 If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  7. If all circuits test normal, test or replace the turn signal/multifunction switch.

Turn Signal Lamps Malfunction

  1. Ignition OFF, disconnect the X4 harness connector at the BCM.
  2. Verify that a test lamp illuminates between the B+ circuit terminal 1 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Verify that a test lamp illuminates between the B+ circuit terminal 3 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. Ignition OFF, connect the X4 harness connector at the BCM.
  5. Disconnect the harness connector at the appropriate turn signal lamp.
  6. Ignition OFF, exterior lamps OFF, test for less than 5 ohms between the appropriate ground circuit terminal listed below and ground. Left front turn signal ground terminal 1 Right front turn signal ground terminal 1 Left rear turn signal ground terminal B Right rear turn signal ground terminal B Left repeater ground terminal B Right repeater ground terminal B If greater than the specified range, test the ground circuit for an open/high resistance.
  7. Connect a test lamp between the appropriate control circuit terminal listed below and ground. Left front turn signal control terminal 3 Right front turn signal control terminal 3 Left rear turn signal control terminal H Right rear turn signal control terminal H Left repeater control terminal A Right repeater control terminal A
  8. Command the appropriate Turn Signal Lamp ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  9. If all circuits test normal, replace the turn signal lamp assembly.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Tail Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  2. «Parking and Turn Signal Lamp Bulb Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  3. «Tail Lamp Bulb Replacement (Stop Lamp)»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system) , «Tail Lamp Bulb Replacement (Back Up and Turn Signal)»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  4. «Turn Signal Multifunction Switch Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/steering-column-switches/#steering-wheel-and-steering-column)
  5. «Front Side Turn Signal Lamp Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exterior-lights/#lighting-system)
  6. «Control Module References»(/chevrolet/captiva/i-2-2013-2016/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM or IPC replacement, setup and programming

Stop Lamp Switch Adjustment

Note. Vehicle uses input signals from both a stop lamp switch and a brake pedal position sensor to control brake lights and other functions.

Scheme 13

Scheme 13: Stop Lamp Switch Adjustment
Scheme 13: Stop Lamp Switch Adjustment
CalloutComponent Name
1Stop Lamp Switch Procedure Cycle the brake pedal to ensure free brake pedal movement and full return prior to setting the switch. Slide the brake stop lamp switch into the retainer until the switch plunger is touching against the striker plate. Once the switch barrel is against the strike plate, twist clockwise 60 degrees until the travel stop has been reached to lock it in place. CAUTION: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment could cause brake drag and excessive brake lining wear. With the switch properly adjusted, there will be a 0.2-1.2 mm (0.008-0.47 in) clearance between the end of the switch barrel and the striker plate on the pedal arm. Cycle the brake pedal to ensure the brake switch electrical connector is fully seated, and that the switch remains in place. Verify the operation of the brake stop lamp.
CAUTION
Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment could cause brake drag and excessive brake lining wear.

Stop Lamp Switch Adjustment

Stop Lamp Switch Replacement

Note. Vehicle uses input signals from both a stop lamp switch and a brake pedal position sensor to control brake lights and other functions.

Scheme 14

Scheme 14: Stop Lamp Switch Replacement
Scheme 14: Stop Lamp Switch Replacement
CalloutComponent Name
1Stop Lamp Switch Assembly Procedure Disconnect the electrical connection. Rotate the stop lamp switch counterclockwise to remove it from the pedal assembly. Refer to Stop Lamp Switch Adjustment

Stop Lamp Switch Replacement

Brake Pedal Position Sensor Calibration

Note. Vehicle uses input signals from both a stop lamp switch and a brake pedal position sensor to control brake lights and other functions.

Calibration Criteria

Note. Do not apply the brake pedal during the brake pedal position sensor calibration procedure. Any movement of the brake pedal during this procedure will cause the calibration procedure to fail. If this occurs, the brake pedal position sensor calibration must be repeated.

Brake pedal position sensor calibration must be performed after the brake pedal position sensor, body control module (BCM) or engine control module (ECM) have been serviced. The calibration procedure will set the brake pedal position sensor home value. This value is used by the BCM and ECM to determine the action of the driver applying the brake system and to provide this information to the vehicle subsystems via serial data.

Calibration Procedure

  1. Apply the parking brake.
  2. Ignition ON, engine OFF, place the transmission in the PARK position for automatic transmission or NEUTRAL position for manual transmission.
  3. Install a scan tool.
  4. Clear all DTCs before proceeding.
  5. Navigate to the Configuration/Reset Functions menu of the BCM.
  6. Select the Brake Pedal Position Sensor Learn procedure and follow the directions displayed on the screen.
  7. Navigate to the Configuration/Reset Functions menu of the ECM.
  8. Select the Learn Functions menu.
  9. Select the Brake Pedal Position Sensor Learn procedure and follow the directions displayed on the screen.

Brake Pedal Position Sensor Replacement

Note. Vehicle uses input signals from both a stop lamp switch and a brake pedal position sensor to control brake lights and other functions.

Scheme 15

Scheme 15: Brake Pedal Position Sensor Replacement
Scheme 15: Brake Pedal Position Sensor Replacement
CalloutComponent Name
1Brake Pedal Position Sensor Bolt CAUTION: Refer to Fastener Caution . Tighten 9 (80 lb in)
2Brake Pedal Position Sensor Procedure Disconnect the electrical connector. After the installation is complete, calibrate the brake pedal position sensor. Refer to Brake Pedal Position Sensor Calibration .
CAUTION
Refer to Fastener Caution .

Brake Pedal Position Sensor Replacement

Scheme 16

Scheme 16: Headlamp Switch Replacement
Scheme 16: Headlamp Switch Replacement
CalloutComponent Name
1Headlamp and Instrument Panel Lamp Dimmer and Fog Lamp Switch Assembly Procedure Carefully use a plastic flat bladed tool to remove the switch assembly from the instrument panel. Disconnect the electrical connector.

Headlamp Switch Replacement

Scheme 17

Scheme 17: Hazard Warning Switch Replacement
Scheme 17: Hazard Warning Switch Replacement

The hazard warning switch (1) located in the driver information display assembly can not be serviced separately. Should the switch assembly need to be replaced, the entire driver information display assembly will need to be replaced. Refer to Driver Information Display Switch Replacement .

Scheme 18

Scheme 18: Headlamp Automatic Control Ambient Light Sensor Replacement
Scheme 18: Headlamp Automatic Control Ambient Light Sensor Replacement
CalloutComponent Name
Preliminary Procedure Remove the radio front speaker. Refer to Radio Front Speaker Replacement .
1Headlamp Auto Control Ambient Light Sensor Assembly Procedure Twist and pull down to remove. Disconnect electrical connector.

Headlamp Automatic Control Ambient Light Sensor Replacement

Scheme 19

Scheme 19: Reading Lamp Bulb Replacement
Scheme 19: Reading Lamp Bulb Replacement
CalloutComponent Name
Preliminary Procedure Remove the reading lamp assembly. Refer to Roof Console Replacement .
1Reading Lamp Bulb (Qty: 2)

Reading Lamp Bulb Replacement

Scheme 20

Scheme 20: Door Lamp Replacement
Scheme 20: Door Lamp Replacement
CalloutComponent Name
Preliminary Procedure Remove the front side door trim. Refer to Front Side Door Trim Panel Replacement .
1Front Side Door Courtesy Lamp Lens
2Front Side Door Courtesy Lamp Retainer Assembly Procedure Disconnect the electrical connector.
3Front Side Door Courtesy Lamp Bulb

Door Lamp Replacement

Scheme 21

Scheme 21: Ignition Lock Cylinder Bulb Replacement
Scheme 21: Ignition Lock Cylinder Bulb Replacement
CalloutComponent Name
Preliminary Procedure Remove the steering column upper trim cover. Refer to Steering Column Upper Trim Cover Replacement .
1Key Hole Lamp Retaining Screw CAUTION: Refer to Fastener Caution . Tighten 2.5 N.m (22 lb ft)
2Ignition Key Alarm Switch Assembly Procedure Disconnect the electrical connectors. Twist to release the key hole lamp bulb.
CAUTION
Refer to Fastener Caution .

Ignition Lock Cylinder Bulb Replacement

Scheme 22

Scheme 22: Overhead Console Reading Lamp and Bulb Replacement
Scheme 22: Overhead Console Reading Lamp and Bulb Replacement
CalloutComponent Name
1Second Row DVD Push Lens (Qty: 2) Procedure Carefully use a plastic flat bladed tool, and release the tabs retaining the lens to the roof console assembly.
2Reading Lamp Bulb (Qty: 2)

Overhead Console Reading Lamp and Bulb Replacement

Scheme 23

Scheme 23: Instrument Panel Compartment Lamp Replacement
Scheme 23: Instrument Panel Compartment Lamp Replacement
CalloutComponent Name
1Instrument Panel Compartment Lamp Assembly Procedure Use a plastic flat bladed trim tool in order to release the lamp assembly from the instrument panel compartment housing. Disconnect the electrical connection.

Instrument Panel Compartment Lamp Replacement

Scheme 24

Scheme 24: Instrument Panel Compartment Lamp Switch Replacement
Scheme 24: Instrument Panel Compartment Lamp Switch Replacement
CalloutComponent Name
Preliminary Procedure Remove the instrument panel compartment. Refer to Instrument Panel Compartment Replacement .
1Instrument Panel Compartment Lamp Switch Assembly Procedure Disconnect the electrical connection. Push the tabs in to release the lamp switch from the housing.

Instrument Panel Compartment Lamp Switch Replacement

Scheme 25

Scheme 25: Sunshade Illuminated Mirror Lamp Bulb Replacement
Scheme 25: Sunshade Illuminated Mirror Lamp Bulb Replacement
CalloutComponent Name
1Sunshade Illuminated Mirror Lamp Lens Procedure Carefully use a flat bladed tool, and release the tabs retaining the lamp lens to the sunshade assembly.
2Sunshade Illuminated Mirror Lamp Bulb

Sunshade Illuminated Mirror Lamp Bulb Replacement

Scheme 26

Scheme 26: Dome Lamp Replacement
Scheme 26: Dome Lamp Replacement
CalloutComponent Name
1Dome Lamp Lens Procedure Carefully use a plastic flat-bladed tool to remove the lens from the dome lamp assembly.
2Dome Lamp Screw (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 2 N.m (18 lb in)
3Dome Lamp Assembly Procedure Disconnect the electrical connection.
4Reading Lamp Bulb (Qty: 2)
CAUTION
Refer to Fastener Caution .

Dome Lamp Replacement

Scheme 27

Scheme 27: Headlamp Replacement
Scheme 27: Headlamp Replacement
CalloutComponent Name
Preliminary Procedure Remove the radiator opening upper cover. Refer to Front Opening Upper Cover Replacement .
1Headlamp Assembly Bolt (Qty 3) CAUTION: Refer to Fastener Caution . Tighten 7.5 N.m (66 lb in)
2Headlamp Assembly Procedure Pull on the outer edge of the headlamp assembly in order to release the headlamp housing bracket locator pin from the fender flange. Disconnect the connector positive assurance connector. Disconnect the electrical connectors from the headlamp assembly. Upon assembly, secure the headlamp housing bracket locator pin to the fender flange. Align the locator pin on the headlamp to the front impact and upper tie bar locations. Snap the locator pin into the retainer. Secure the headlamp bolts Adjust the headlamp aim. Refer to Headlamp Aiming .
CAUTION
Refer to Fastener Caution .

Headlamp Replacement

Scheme 28

Scheme 28: Headlamp Bulb Replacement (High Beam)
Scheme 28: Headlamp Bulb Replacement (High Beam)
CalloutComponent Name
WARNING: Refer to Halogen Bulb Warning . Preliminary Procedure Remove the headlamp assembly. Refer to Headlamp Replacement .
1Headlamp Bulb Accessory Cover (Qty: 2) TIP: Ensure the cover seal is in workable condition.
2Headlamp Bulb Assembly (High Beam) TIP: Remove the bulb and disconnect the electrical connector.
WARNING
Refer to Halogen Bulb Warning .

Headlamp Bulb Replacement (High Beam)

Scheme 29

Scheme 29: Headlamp Bulb Replacement (Low Beam)
Scheme 29: Headlamp Bulb Replacement (Low Beam)
CalloutComponent Name
WARNING: Refer to Halogen Bulb Warning . Preliminary Procedure Remove the headlamp assembly. Refer to Headlamp Replacement .
1Headlamp Bulb Accessory Cover (Qty: 2)
2Headlamp Bulb Assembly (Low Beam) TIP: Remove the bulb and disconnect the electrical connector.
WARNING
Refer to Halogen Bulb Warning .

Headlamp Bulb Replacement (Low Beam)

Scheme 30

Scheme 30: Headlamp Bracket Replacement
Scheme 30: Headlamp Bracket Replacement
CalloutComponent Name
Preliminary Procedure Remove the headlamp assembly. Refer to Headlamp Replacement .
1Headlamp Housing Bracket Assembly Screw (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 2.5 N.m (22 lb in)
2Headlamp Housing Bracket Assembly
CAUTION
Refer to Fastener Caution .

Headlamp Bracket Replacement

Headlamp Aiming

The vehicle has a visual optical headlamp aiming system. The aim has been preset at the factory and should need no further adjustment

However, If the vehicle is damaged in an accident, the headlamp aim may be affected and adjustment may be necessary.

If oncoming vehicles flash their high beams at you, this may also mean the vertical aim needs to be adjusted.

It is recommended that the vehicle is taken to your dealer for service if the headlamps need to be re-aimed. It is possible however, to re-aim the headlamps as described in the following procedure.

The vehicle should be properly prepared as follows

  1. The vehicle should be placed so the headlamps are 25 ft (7.6 m) from a light colored wall or other flat surface.
  2. The vehicle must have all four tires on a perfectly level surface which is level all the way to the wall or other flat surface.
  3. The vehicle should be placed so it is perpendicular to the wall or other flat surface.
  4. The vehicle should not have any snow, ice or mud on it.
  5. The vehicle should be fully assembled and all other work stopped while headlamp aiming is being done.
  6. The vehicle should be normally loaded with a full tank of fuel and one person or 160 lbs (75 kg) on the driver seat.
  7. Tires should be properly inflated.

Headlamp aiming is done with the vehicle low-beam headlamps. The high-beam headlamps will be correctly aimed if the low-beam headlamps are aimed properly.

  1. To adjust the vertical aim on the headlamps, complete the following
  2. Find the aim dots on the lens of the lamp assembly.
  3. Measure the distance from the ground to the aim dot on the lamp with the hood in the closed position. Record the distance.
  4. At the wall or other flat surface, measure from the ground upward the recorded distance and draw or tape a horizontal line the width of the vehicle.
  5. Turn on the low-beam headlamps and place a piece of cardboard or equivalent in front of the headlamp not being aimed. This should allow only the beam of light from the headlamp being aimed to be seen on the flat surface.
  6. Adjust the vertical headlamp adjustment screw until the Hot Spot (Center of mass of the Bright Area) is set at 8.0 inches (2) below the headlamp horizontal access (1) within +/- 2 inches when measured at 25 feet.
  7. Adjust the vertical headlamp adjustment screw until the Right Gradient Line (Cutoff Line) is set at the Horizontal Axis within +/- 2.0 inches (2) measured at 25 feet.
  8. Repeat steps 5, 6 and 7 for the opposite headlamp.

Scheme 31

Scheme 31: Front Fog Lamp Replacement
Scheme 31: Front Fog Lamp Replacement
CalloutComponent Name
Preliminary Procedure Remove the front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement .
1Front Fog Lamp Assembly Electrical Connector
2Front Fog Lamp Assembly Screw (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 1.5 N.m (13 lb in)
3Front Fog Lamp Assembly Procedure Aim the front fog lamps after replacement. Refer to Fog Lamp Aiming .
CAUTION
Refer to Fastener Caution .

Front Fog Lamp Replacement

Scheme 32

Scheme 32: Front Fog Lamp Bulb Replacement
Scheme 32: Front Fog Lamp Bulb Replacement
CalloutComponent Name
WARNING: Refer to Halogen Bulb Warning . Preliminary Procedure Remove the front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement .
1Front Fog Lamp Assembly Electrical Connector
2Front Fog Lamp Assembly Bulb Procedure Rotate and remove the bulb socket assembly from the fog lamp housing.
WARNING
Refer to Halogen Bulb Warning .

Front Fog Lamp Bulb Replacement

Scheme 33

Scheme 33: Front Fog Lamp Cover Replacement
Scheme 33: Front Fog Lamp Cover Replacement
CalloutComponent Name
Preliminary Procedure Remove the wheelhouse liner in order to access the front fog lamp opening cover. Refer to Front Wheelhouse Liner Replacement .
1Front Fog Lamp Opening Cover Screw (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 1.5 N.m (13 lb in)
2Front Fog Lamp Opening Cover TIP: Inspect the retainer clips and replace if damaged.
CAUTION
Refer to Fastener Caution .

Front Fog Lamp Cover Replacement

Scheme 34

Scheme 34: Fog Lamp Aiming
Scheme 34: Fog Lamp Aiming
CalloutComponent Name
Preliminary Procedures Completely assemble all of the components on the vehicle. Place the vehicle on a level surface. Stop all work on the vehicle that could affect the ride height of the vehicle. Close all doors and verify that the luggage compartment is empty. Stabilize the suspension. Ensure the fuel level is full. Ensure the tires are inflated to proper specification, see the tire placard, inside edge of the driver's door. Ensure that the driver or a similar weight, approximately 75kg (165 lbs) is in the driver seat. Park the vehicle 7.6 m (25 ft) away from the target screen. Measure from the center of the fog lamp to the ground line. Using this measurement, mark the horizontal centerline of the fog lamp line on the target screen directly in front of the vehicle. Turn on the fog lamps. The top of the fog lamp beam image on the target screen should be 102 mm (4 in) below the center of the fog lamp lens height. Adjust the fog lamp beam as required using the adjusting screw just above the fog lamp lens, exterior side of the vehicle. Turn off the fog lamps after adjustment has been achieved.
1Adjuster Screw Procedure Minimal turning of the adjuster screw will achieve maximum adjustment results on the screen. TIP: Horizontal aim is not adjustable on this vehicle. Vertical aiming is accomplished by turning the adjuster screw located at the top of the fog lamp, from the exterior side of the lower bumper fascia.

Fog Lamp Aiming

Scheme 35

Scheme 35: Front Side Marker Lamp Replacement
Scheme 35: Front Side Marker Lamp Replacement
CalloutComponent Name
Preliminary Procedure Remove the front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement .
1Forward Lamp Harness Electrical Connector TIP: Disconnect the electrical connector from the lamp socket.
2Front Side Marker Lamp Assembly Procedure Squeeze the rearward lamp assembly tab forward. Push outward from the rear edge of the lamp. Pull the lamp rearward to remove from the upper bumper fascia.

Front Side Marker Lamp Replacement

Scheme 36

Scheme 36: Front Side Marker Lamp Bulb Replacement
Scheme 36: Front Side Marker Lamp Bulb Replacement
CalloutComponent Name
WARNING: Refer to Halogen Bulb Warning . Preliminary Procedure Remove the front wheelhouse liner in order to access the front side marker lamp bulb. Refer to Front Wheelhouse Liner Replacement .
1Forward Lamp Harness Electrical Connector
2Front Side Marker Lamp Bulb Socket
3Front Side Marker Lamp Bulb Procedure Pull the bulb straight from the lamp socket.
WARNING
Refer to Halogen Bulb Warning .

Front Side Marker Lamp Bulb Replacement

Scheme 37

Scheme 37: Rear Side Marker Lamp Replacement
Scheme 37: Rear Side Marker Lamp Replacement
CalloutComponent Name
Preliminary Procedure Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement .
1Rear Side Marker Lamp Assembly TIP: Push the forward clip edge of the lamp assembly outward from the rear bumper fascia.
2Rear Side Marker Lamp Assembly Bulb Socket

Rear Side Marker Lamp Replacement

Scheme 38

Scheme 38: Rear Side Marker Lamp Bulb Replacement
Scheme 38: Rear Side Marker Lamp Bulb Replacement
CalloutComponent Name
Preliminary Procedure Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement .
1Rear Side Marker Lamp Assembly Bulb Socket TIP: Rotate the bulb socket a quarter turn counter-clockwise and remove.
2Rear Side Marker Lamp Bulb

Rear Side Marker Lamp Bulb Replacement

Scheme 39

Scheme 39: Front Side Turn Signal Lamp Replacement
Scheme 39: Front Side Turn Signal Lamp Replacement
CalloutComponent Name
Preliminary Procedure Remove the front fender center molding. Refer to Front Fender Center Molding Replacement .
1Front Fender Center Molding Assembly
2Front Side Turn Signal Lamp Assembly Procedure Disconnect the electrical lamp socket prior to removing bulb socket from the front fender center molding assembly.

Front Side Turn Signal Lamp Replacement

Scheme 40

Scheme 40: Parking and Turn Signal Lamp Bulb Replacement
Scheme 40: Parking and Turn Signal Lamp Bulb Replacement
CalloutComponent Name
Preliminary Procedures Remove the headlamp assembly. Refer to Headlamp Replacement . Disconnect the front turn signal bulb electrical connector from the bulb socket.
1Park and Turn Signal Lamp Bulb Socket (Qty: 2) Procedure Rotate the bulb sockets counter clockwise in order to access and remove the bulbs. Aim the headlamps after the bulb replacement. Refer to Headlamp Aiming .
2Front Park and Turn Signal Lamp Bulb

Parking and Turn Signal Lamp Bulb Replacement

Removal Procedure

  1. Remove the rear spoiler. Refer to «Rear Spoiler Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exteriorinterior-trim/#exterior-trim) .
  2. Invert the spoiler and place on a clean dry, protected surface.
  3. Remove the spoiler to high mounted stop lamp screws (1).
  4. Disengage the washer hose from the spoiler.
  5. Disengage the electrical connector (2) from the spoiler bracket.
  6. Lift the high mounted stop lamp (3) from the spoiler.
  7. Remove the washer nozzle screws (1).
  8. Remove the rear washer nozzles (3) from the high mounted stop lamp (4) assembly.
  9. Remove the high mounted stop lamp assembly (4).

Installation Procedure

  1. Install the washer nozzles (3) into the rear high mounted stop lamp assembly (4).
  2. Install the rear window washer nozzle screws (1). Tighten the screws to 2 N.m (18 lb in).
  3. Position the high mounted stop lamp (3) to the rear spoiler bracket.
  4. Install the screws (1) to secure the high mounted stop lamp (3) to the rear spoiler bracket. Tighten the screws 2 N.m (18 lb in).
  5. Position and secure the high mounted stop lamp electrical connector (2) to the spoiler bracket.
  6. Secure the washer hose to the spoiler.
  7. Install the rear spoiler to the vehicle. Refer to «Rear Spoiler Replacement»(/chevrolet/captiva/i-2-2013-2016/remont/exteriorinterior-trim/#exterior-trim) .

Scheme 41

Scheme 41: Rear License Plate Lamp Replacement
Scheme 41: Rear License Plate Lamp Replacement
CalloutComponent Name
1License Lamp Screw (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten .9 N.m (8 lb in)
2License Lamp Lens (Qty: 2)
3License Lamp Housing
4License Plate Lamp Bulbs (Qty: 2)
CAUTION
Refer to Fastener Caution .

Rear License Plate Lamp Replacement

Scheme 42

Scheme 42: Tail Lamp Replacement
Scheme 42: Tail Lamp Replacement
CalloutComponent Name
Preliminary Procedure Open the rear liftgate in order to access and remove the tail lamp screws.
1Tail Lamp Screw (Qty 2) CAUTION: Refer to Fastener Caution . Tighten 2.5 N.m (22 lb in)
2Tail Lamp Assembly Procedure Pull on the outer edge of the tail lamp assembly in order to release the tail lamp locator pins from the rear bodyside panel.
3Tail Lamp Electrical Connector
CAUTION
Refer to Fastener Caution .

Tail Lamp Replacement

Scheme 43

Scheme 43: Tail Lamp Bulb Replacement (Stop Lamp)
Scheme 43: Tail Lamp Bulb Replacement (Stop Lamp)
CalloutComponent Name
Preliminary Procedure Remove the rear tail lamp assembly. Refer to Tail Lamp Replacement .
1Turn Signal Bulb WARNING: Refer to Halogen Bulb Warning . Procedure Rotate the bulb socket counterclockwise from the tail lamp assembly. Pull the bulb from the bulb socket.
WARNING
Refer to Halogen Bulb Warning .

Tail Lamp Bulb Replacement (Stop Lamp)

Scheme 44

Scheme 44: Tail Lamp Bulb Replacement (Back Up and Turn Signal)
Scheme 44: Tail Lamp Bulb Replacement (Back Up and Turn Signal)
CalloutComponent Name
Preliminary Procedure Remove the rear tail lamp assembly. Refer to Tail Lamp Replacement .
1Turn Signal Bulb WARNING: Refer to Halogen Bulb Warning . Procedure Rotate the bulb socket counterclockwise from the tail lamp assembly. Pull the bulb from the bulb socket.
2Back Up Bulb WARNING: Refer to Halogen Bulb Warning . Procedure Rotate the bulb socket counterclockwise from the tail lamp assembly. Pull the bulb from the bulb socket.
WARNING
Refer to Halogen Bulb Warning .
WARNING
Refer to Halogen Bulb Warning .

Tail Lamp Bulb Replacement (Back Up and Turn Signal)

Scheme 45

Scheme 45: Rear Compartment Courtesy Lamp Replacement
Scheme 45: Rear Compartment Courtesy Lamp Replacement
CalloutComponent Name
1Rear Compartment Courtesy Lamp Assembly Procedure Use a plastic flat bladed trim tool in order to release the lamp assembly from the rear quarter trim panel. Disconnect the electrical connection.
2Rear Compartment Courtesy Lamp Bulb

Rear Compartment Courtesy Lamp Replacement

Exterior Lamps

The exterior lighting system consist of the following lamps

  1. The headlamps
  2. The daytime running lamps
  3. The fog lamps
  4. The park, tail and marker lamps
  5. The turn signal lamps
  6. The stop lamps
  7. The backup lamps

Headlamps

The headlamps may be turned ON 2 different ways. First, when the driver places the headlamp switch in the HEADLAMP position, for normal operation. Second, with the headlamp switch placed in the AUTO position, for automatic lamp control (ALC). During ALC, the headlamps will be OFF in daylight conditions or low beam operation in low light conditions. Battery positive voltage is supplied to the low beam relay and the high beam relay in the underhood fuse block. When low beam headlamps are requested, the body control module (BCM) supplies ground to the coil side of the low beam relay. This activates the relay and the relay supplies voltage to the left hand low beam headlamp through the LT LOW BEAM fuse and to the right hand low beam headlamp through the RT LOW BEAM fuse. When high beam headlamps are requested, the body control module (BCM) supplies ground to the coil side of the high beam relay. This activates the relay and the relay supplies voltage to the left hand high beam headlamp through the LT HIGH BEAM fuse and to the right hand high beam headlamp through the RT HIGH BEAM fuse.

Daytime Running Lamps (DRL)

The ambient light sensor is a light-sensitive transistor that varies its voltage signal to the body control module (BCM) in response to changes in the outside (ambient) light level. When the BCM receives this signal the BCM turns ON just the low beam headlamps at reduced intensity for the daytime running lamp (DRL) operation. A resistor wire is used (CKT312) to reduced the voltage which reduces the light intensity for the DRL's function. The ambient light sensor can also turn ON the low beam headlamps and the exterior lamps for automatic lamp control (ALC). Any function or condition that turns ON the headlamps will cancel the DRL operation (this means no reduced voltage to the low beam lights). Thirty seconds after you start the engine with the headlamp switch in the OFF position, the DRL will perform one of two actions

  1. Illuminate the low beam headlamps at reduced intensity in daylight conditions
  2. Illuminate the low beam headlamps and exterior park lamps for low light conditions

The DRL operates when the ignition switch is in the RUN position, the parking brake is not set and the transmission is not in the PARK position When these conditions are met and the DRL ambient light sensor indicates daylight conditions the DRL will illuminate

Fog Lamps

With the ignition switch in the ON position and the park lamps or low beam headlights ON, the fog lights will illuminate when the driver presses the fog lamp switch. The FRONT FOG fuse in the underhood fuse block supplies battery positive voltage to the switch side of the FRT FOG relay. When the fog lamp switch is pressed, the body control module (BCM) fog lamp switch input is grounded. The BCM will then energize the FRT FOG relay control circuit. The current flow is now from the FRONT FOG relay to both front fog lamps and to ground. The state of the fog lamps, either ON or OFF, will remain the same until the fog lamp switch is pressed again or the ignition switch is cycled OFF and ON. Fog lamp operation will be cancelled whenever the park lamps, are turned OFF or the high beam headlights have been selected.

Park, Tail and Marker Lamps

The park, tail and marker lamps, including the license lamps, are turned ON when the headlamp switch is placed in the PARK or HEADLAMP position or anytime the headlights are requested. The underhood fuse block supplies battery positive voltage to the PARK LAMP relay switch contacts and coil. When the park lamps are turned ON, the body control module (BCM) energizes the park lamp relay. Current flow is from the PARK LAMP relay through the park lamps LH fuse and park lamps RH fuse to their respective park and marker lamps and to ground.

Perimeter Lighting

When a remote unlock is requested and the vehicle is off, doors locked and a low ambient light is present, then the high beams, park lamps and backup lamps will come on for about 20 seconds or until a door is open, the key is turned to ACC or run or a remote lock actuation.

Remote Keyless Entry Exterior Lamp Illumination

On vehicles with a remote control door lock receiver (RCDLR), when the RCDLR module receives a door unlock command from the remote keyless entry (RKE) transmitter, the RCDLR module will send a class 2 message to the body control module (BCM) indicating that an UNLOCK command has been received. The BCM will then flash the park lamps twice. With all the doors closed and the RKE transmitter is used to lock the doors, the park lamps will flash twice. The park lamps will not flash if the rear compartment is opened using the RKE transmitter.

On vehicles without a RCDLR, when the BCM receives a door unlock command from the RKE transmitter, the BCM will then flash the park lamps twice. With all the doors closed and the RKE transmitter is used to lock the doors, the park lamps will flash twice. The park lamps will not flash if the rear compartment is opened using the RKE transmitter.

Turn Signal Lamps

The body control module (BCM) is responsible for controlling the turn signals and hazard lamps. When the turn signal switch is placed in either the left turn or right turn position, the BCM receives a signal from the turn signal switch. The BCM then sends an on-off voltage signal to either the left or right turn signals and their instrument panel cluster (IPC) indicator. When the hazard switch is pressed, the BCM receives a signal from the hazard switch. The BCM then will send an on-off voltage signal to all the turn signal lamps. All the turn signal lamps will flash including both IPC turn signal indicators.

Stop Lamps

The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The body control module (BCM) provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the stop lamp control circuit illuminating the left and right stop lamps and the center high mounted stop lamp (CHMSL). The BCM also applies battery voltage to the transmission control module (TCM) and engine control module (ECM) via the brake applied signal circuit.

Backup Lamps

The CHMSL/BKUP fuse in the instrument panel (I/P) fuse block supplies battery positive voltage to the body control module (BCM). When the driver places the gear selector in to the REVERSE position, the powertrain control module (PCM) sends a class 2 message to the BCM. The BCM then applies battery positive voltage to the backup lamp supply voltage circuit. The engine may need to be running for the backup lamps to function.

Inadvertent Power

The body control module (BCM) used in this vehicle controls the lighting system through circuits that enable both the exterior lamp functions of park, head and fog lamps as well as the interior lamps. The BCM opens these enabling circuits shortly after the ignition switch is turned OFF with no lamp switch activity. If the ignition switch is turned to any position other than OFF or if a lamp switch is activated during this period, the timer will reset itself again.

Interior Lighting

The interior lighting consist of lamps that may not be dimmed (Interior Lamps) and lamps that may be dimmed (Interior Lamps Dimming).

Interior Lamps

The first group of lamps are the interior courtesy lamps that may not be dimmed manually, these include

  1. The dome lamp
  2. The instrument panel (I/P) compartment lamp
  3. The I/P courtesy lamps
  4. The rear compartment lamp
  5. The roof rail courtesy/reading lamps
  6. The sunshade vanity mirror lamps

Interior Lamps Features

The interior lamps system features the following functions

  1. An illuminated entry feature that illuminates the courtesy lamps when entering the vehicle or activating the remote keyless entry system.
  2. An illuminated exit feature that illuminates the courtesy lamps when the ignition key has been removed from the ignition.
  3. An inadvertent power feature that supplies voltage to all interior lamps after the ignition is turned OFF. The inadvertent power feature will deactivate all interior lamps after 20 minutes to prevent battery rundown.
  4. A theater dimming feature that will slowly dim the interior lamps from full brightness to OFF.
  5. An lamp switch assembly that illuminates the courtesy lamps.
  6. Individual switches for control of each interior lamp that is not illuminate with the interior lamp switch.

Courtesy/Illuminated Entry Lamps

When the body control module (BCM) is in an active state (awake) it energizes the courtesy lamps supply voltage circuit. The courtesy lamps supply voltage circuit supplies voltage to all of the interior lamps, including the illuminated entry lamps (courtesy lamps). The illuminated entry lamps are turned ON when they receive a battery positive voltage from the courtesy lamp supply voltage circuit of the BCM. When the ignition is in the LOCK position the BCM will apply the courtesy lamp supply voltage circuit under the following conditions

  1. The door jamb input transitions to an active state (opening a door).
  2. The use of the remote keyless entry (RKE) to unlock the side doors.

When the courtesy lamps supply voltage circuit and the courtesy lamp low control circuit are active the courtesy/illuminated entry lamps will illuminate. The courtesy lamps/illuminated entry lamps include the following interior lamps

  1. The dome lamp
  2. The roof rail courtesy lamps
  3. The I/P courtesy lamps

When the driver uses the remote function actuator transmitter to unlock the doors, the BCM will illuminate the courtesy lamps for approximately 40 seconds, unless another BCM function causes the lamps to remain active. If the ignition switch is turned to either the RUN or START position the courtesy lamps will turn OFF immediately.

When the door latch switch signal circuit is active with the ignition in the OFF position the BCM will illuminate the courtesy lamps. The courtesy lamps will remain illuminated for approximately 25 seconds, after the door latch switch signal circuit becomes inactive, unless another BCM function causes the lamps to remain active. If the ignition switch is turned to either the RUN or START position the courtesy lamps will turn OFF immediately.

Courtesy/Illuminated Exit

The illuminated exit feature will activate the courtesy lamps when the key IN input of the BCM transitions from an active state to an inactive state (removing the ignition key). When the key is removed from the ignition, the key IN input to the BCM becomes inactive. The BCM will illuminate the courtesy lamps for approximately 25 seconds, unless another BCM function causes the lamps to remain active.

Inadvertent Power Feature

Inadvertent power feature provides a similar function for the interior lamps as a retained accessory power feature. The BCM will energize the courtesy lamps supply voltage circuit when the BCM is in the active state (awake). When the courtesy lamps supply voltage circuit is energized, it supplies voltage to all the interior lights. The BCM will continue to supply voltage to the interior lamps after the ignition is turned OFF so that the interior lamps may be operated.

The inadvertent power feature will also act as battery run down protection by deactivate the courtesy lamps supply voltage circuit after 20 minutes once the BCM becomes inactive, ignition OFF and no BCM input activity.

Theater Dimming

The theater dimming feature that will slowly dim the interior lamps from full brightness to OFF. The following actions will over ride the theater dimming feature causing the courtesy lamps to deactivate immediately if no other BCM function commands the courtesy lamps ON

  1. A transition from active to inactive of the interior lamps switch, turning OFF the interior lamps switch
  2. A LOCK command from the remote keyless entry system
  3. A last door closed locking function, locking and closing all the doors

Courtesy Lamps Manual Operation

The courtesy lamps, may be manually operated by the lamp switch assembly. When the dimmer switch is placed in the DOME position the BCM receives a ground from the courtesy lamp switch signal circuit. Upon receiving the courtesy lamp switch signal the BCM then applies battery positive voltage to the courtesy lamp supply voltage circuit, which illuminates the courtesy lamps. The voltage for all interior lamps is supplied by the courtesy lamp supply voltage circuit of the BCM, whenever the BCM is active. The interior lamp switch will override any BCM operation of the interior lamps, such as entry illumination.

Dome Lamp

The dome lamp is turned ON by the lamp switch assembly or during illuminated entry.

During illuminated entry or when the lamp switch assembly is in the DOME position, the body control module (BCM) wakes up and then energizes the courtesy lamps supply voltage circuit, suppling voltage to all interior lamps.

I/P Compartment Lamp

When the I/P compartment is opened the I/P compartment lamp illuminates, if the courtesy lamps supply voltage circuit of the BCM is activated, BCM awake.

The I/P compartment lamp illuminates when the courtesy lamps supply circuit of the BCM supplies voltage to the I/P compartment lamp and the I/P compartment switch closes, providing a ground path.

I/P Courtesy Lamp

The I/P courtesy lamp is turned ON by the lamp switch assembly or during illuminated entry.

During illuminated entry or when the I/P dimmer switch is DOME the BCM wakes up and then energizes the courtesy lamps supply voltage circuit, suppling voltage to all interior lamps.

Rear Compartment Lamp

When the rear compartment is opened, the rear compartment lamp illuminates.

When the rear compartment is opened, the rear compartment courtesy lamp switch sends a ground signal to the BCM, waking the BCM. When the BCM wakes up it will then energize the courtesy lamps supply voltage circuit, suppling voltage to the rear compartment courtesy lamp. The rear compartment courtesy lamp switch will provide a ground path for the rear compartment courtesy lamp in order to illuminate the lamp.

Roof Rail Courtesy/Reading Lamps

The roof rail courtesy lamps are turned ON by the lamp switch assembly, the individual roof rail courtesy lamp switch or during illuminated entry.

During illuminated entry or when the I/P dimmer switch is ON the BCM wakes up and then energizes the courtesy lamps supply voltage circuit, suppling voltage to all interior lamps.

The roof rail courtesy/reading lamps can be turned ON from the individual roof rail courtesy lamp switch. The BCM supplies voltage through the courtesy lamps supply voltage circuit when the BCM is awake. Manually turning ON the roof rail courtesy lamp switch provides a ground path.

Sunshade Vanity Mirror Lamps

When the vanity mirror cover on the sunshade is opened, the sunshade mirror lamp illuminates.

The sunshade mirror lamps receive voltage from the courtesy lamps supply voltage circuit anytime the BCM is awake. The sunshade illuminated mirror lamps receive ground from their individual switches when the sunshade is open.

Interior Lamps Dimming

The second group of lamps include lamps which may be dimmed. This group uses a combination of class 2 dimming and incandescent lamps.

  1. The PRNDL lamp
  2. The door switches and window switches
  3. The HVAC control head assembly
  4. The outside rearview mirror switches
  5. The driver information center (DIC)
  6. The radio
  7. The lamp switch assembly
  8. The steering wheel controls
  9. The instrument panel cluster (IPC)
  10. The traction control switch

When the headlamp switch is placed in the PARK position, ground is supplied through the headlamp switch to body control module (BCM). The BCM also applies a voltage reference and a low reference signal to the interior lamp dimmer switch. When the interior lamp switch is varied, the position of the switch is applied through the instrument panel (I/P) dimming control circuit to the BCM. The BCM then applies a voltage to the interior lamps.

The lamps become illuminated when the park lamps are ON. The brightness of all the incandescent lamps is determined by a variable voltage signal from the dimmer switch and sent through the instrument panel lamp supply voltage circuit. The lamps are located in various components, refer to Interior Lights Schematics . The interior backlighting may stay on for a period of time after the ignition switch has been turned off.

Incandescent Dimming

The incandescent lamps become illuminated when the park lamps are on. The brightness of all the incandescent lamps is determined by a variable voltage signal from the dimmer switch and sent through the instrument panel lamp supply voltage circuit. The incandescent lamps are located in various components, refer to Interior Lights Dimming Schematics .

Driver Controls and Modules

The BCM module processes the inputs and the controls. The ambient light sensor supplies the BCM with a signal for daytime conditions or for low light conditions

  1. The BCM
  2. The DIC
  3. The IPC

Driver controls include the following components

  1. The I/P dimmer switch
  2. The door jamb switches
  3. The headlamp switch
  4. The rear compartment lid ajar switch
  5. The roof rail courtesy reading lamp switch
  6. The sunshade vanity mirror lamps switch
  7. The I/P compartment lamp switch

See also:
• Diagnostic System Check - Vehicle
• Strategy Based Diagnosis
• Diagnostic Procedure Instructions
• COMPONENT CONNECTOR END VIEWS - INDEX
• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs
• Control Module References
• Diagnostic Repair Verification
• Inside Rearview Mirror Replacement
• Relay Replacement (Within an Electrical Center)
• Relay Replacement (Attached to Wire Harness)
• Circuit Protection - Fusible Links
• Checking Aftermarket Accessories
• Door Ajar Indicator Malfunction
• Turn Signal Multifunction Switch Replacement
• Fastener Caution
• Driver Information Display Switch Replacement
• Radio Front Speaker Replacement
• Roof Console Replacement
• Front Side Door Trim Panel Replacement
• Front Opening Upper Cover Replacement
• Halogen Bulb Warning
• Front Wheelhouse Liner Replacement
• Front Fender Center Molding Replacement
• DTC B1395
• Brake Pedal Position Sensor Calibration
• Stop Lamp Switch Replacement
• Stop Lamp Switch Adjustment
• Headlamp Aiming