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Contents Wiring diagrams Section: Restraints Control Systems All sections

Seat Belt System Chevrolet Equinox II

Restraints Control Systems 7 illustrations ~5288 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Front Seat Belt Bolt45 N.m33 lb ft
Front Seat Belt Buckle Bolt45 N.m33 lb ft
Front Seat Retractor Side Belt Bolt45 N.m33 lb ft
Front Seat Shoulder Belt Guide Adjuster Bolt45 N.m33 lb ft
Rear Seat Shoulder Belt Anchor Plate Bolt45 N.m33 lb ft
Rear Seat Center Belt Buckle Bolt45 N.m33 lb ft
Rear Seat Belt Buckle Bolt45 N.m33 lb ft
Rear Seat Center Shoulder Belt Retractor Nut45 N.m33 lb ft
Rear Seat Belt Retractor Bolt45 N.m33 lb ft

Fastener Tightening Specifications

Scheme 1

Scheme 1: Seat Belts
Scheme 1: Seat Belts

Front and Rear Seat Belt Retractors

Front and rear seat belt retractors will lock under the following conditions

  1. The vehicle exceeds a 15 degree angle
  2. The vehicle exceeds 0.60 g of deceleration force
  3. The webbing is pulled out of the retractor rapidly
  4. During hard cornering or while descending a winding downhill grade
  5. While braking to stop at a downhill intersection

All retractors will unlock when 25.4 mm (1 in) of the belt is fed back into the retractor.

Static Test

  1. Remove the retractor assembly.
  2. Tilt the retractor slowly.
  3. Verify that the belt can be pulled out of the retractor at an inclination of 15 degrees or less, but not at an inclination of 45 degrees or more.

Static Test Seat Belts with Child Hold-Out Mechanism (CHOM) Feature

Front Passenger Seat, Rear Outboard Seats

  1. Pull the seat belts all the way out of the retractor.
  2. Feed a few inches of belt back into the retractor and listen for the audible clicking of the child hold-out mechanism (CHOM) system.
  3. Verify that the belt cannot be pulled out of the retractor.
  4. Feed the seat belt all of the way into the retractor and verify that the belt returns to normal operating conditions. If the seat belt webbing will not retract, refer to «Seat Belt Does Not Retract»(/chevrolet/equinox/ii-2009-2015/remont/restraints-control-systems/#seat-belt-system__seat-belt-does-not-retract) .

Safety Belt Operational Checks

Front and Rear Restraints

The front seats and rear seats have a three-point seat belt system with a seat belt retractor. The rear seat latch plate should move up and down easily on the belt. An audible click should be heard when the front or rear latch plate is inserted into the buckle. Inspect the attachment of the latch plate to the buckle by grasping the belt and pulling firmly. The belt should disconnect easily when the button on the buckle is pushed in.

Diagnostic Code Index

DTCDescription
DTC B0072 or B0073DTC B0072 Driver seat belt switch circuits have High or Low Resistance, Short or Open. DTC B0073 Driver seat belt switch circuits have High or Low Resistance, Short or Open.
DTC B059ADTC B059A 01 Passenger Seat Belt Indicator Circuit Short to Battery DTC B059A 02 Passenger Seat Belt Indicator Circuit Short to Ground DTC B059A 04 Passenger Seat Belt Indicator Circuit Open

DIAGNOSTIC CODE INDEX

Diagnostic Instructions

  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/equinox/ii-2009-2015/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/equinox/ii-2009-2015/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 ResistanceOpenShort to VoltageSignal Performance
Driver Seat Belt Sensor ControlB0072 02, B0072 0BB0072?04, B0072 06, B0072 0CB0072 04, B0072 06B0072 01, B0072 05B0072 08
Passenger Seat Belt Sensor ControlB0073 02, B0073 0BB0073 04, B0073 06, B0073 0CB0073 04, B0073 06B0073 01, B0073 05B0073 08

Circuit/System Description

The inflatable restraint seat belt buckle switch is within the seat belt buckle and provides an input to the Inflatable Restraint Sensing and Diagnostic Module (SDM). The Inflatable Restraint Sensing and Diagnostic Module supplies a low reference circuit and a seat belt switch signal circuit to determine a buckled or unbuckled condition. The Inflatable Restraint Sensing and Diagnostic Module monitors the seat belt switch circuits and if a fault is detected a DTC will be set.

Conditions for Running the DTC

Ignition voltage is between 9-16 V.

Action Taken When the DTC Sets

The inflatable restraint sensing and diagnostic module will store a DTC and illuminate the Air Bag indicator in the instrument cluster.

Conditions for Clearing the DTC

The condition for setting the DTC no longer exists.

Reference Information

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  3. «Wiring Repairs»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)
  4. «Connector Repairs»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

  1. Ignition ON.
  2. Verify the appropriate scan tool Seat Belt Status parameter changes between Buckled and Unbuckled when the seat belt is buckled and unbuckled. If the parameter does not change, refer to Circuit/System Testing below. If the parameter changes, go to next step.
  3. All OK.

Circuit/System Testing

Note. When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector. B88D Seat Belt Switch - Driver B88P Seat Belt Switch - Passenger. K36 Inflatable Restraint Sensing and Diagnostic Module.

  1. Ignition OFF, disconnect the harness connector at the appropriate B88 Seat Belt Switch.
  2. Test for less than 5 ohms between the low reference circuit terminal B and ground. If 5 ohms or greater Ignition OFF, disconnect the harness connector at the K36 Inflatable Restraint Sensing and Diagnostic Module. Test for less than 2 ohms in the low reference circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
  3. Ignition ON.
  4. Verify the appropriate scan tool Seat Belt Status parameter is Buckled. If not Buckled, Ignition OFF, disconnect the harness connector at the K36 Inflatable Restraint Sensing and Diagnostic Module. Test for infinite resistance between the signal circuit terminal A and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
  5. If Buckled, install a 3A fused jumper wire between the signal circuit terminal A and the low reference circuit terminal B.
  6. Verify the appropriate scan tool Seat Belt Status parameter is Unbuckled. Ignition OFF, disconnect the harness connector at the K36 Inflatable Restraint Sensing and Diagnostic Module, ignition ON. Test for less than 1V between the signal circuit and ground. If 1V or greater, repair the short to voltage on the circuit. If less than 1V, go to next step. Test for less than 2 ohms in the signal circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
  7. If Unbuckled, test or replace the B88 Seat Belt Switch.

Component Testing

  1. Ignition OFF, disconnect the harness connector at the B88 Seat Belt Switch.
  2. Test for infinite resistance between the signal terminal A and the low reference terminal B. If less than infinite resistance, Replace the B88 Seat Belt Switch. If less than infinite resistance, replace the B88 Seat Belt Switch. If infinite resistance, go to next step.
  3. Insert the seat belt into the buckle.
  4. Test for less than 5 ohms resistance between the signal terminal A and the low reference terminal B. If 5 ohms or greater, Replace the B88 Seat Belt Switch. If less than 5 ohms, go to next step.
  5. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Front Seat Belt Buckle Replacement»(/chevrolet/equinox/ii-2009-2015/remont/restraints-control-systems/#seat-belt-system)
  2. Se appropriate SIR/SRS Wiring Repairs information in «REPAIRS AND INSPECTIONS REQUIRED AFTER A COLLISION»(/chevrolet/equinox/ii-2009-2015/remont/airbag/#supplemental-inflatable-restraint-system) .
  3. «Control Module References»(/chevrolet/equinox/ii-2009-2015/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for inflatable restraint sensing and diagnostic module replacement, setup, and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/equinox/ii-2009-2015/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/equinox/ii-2009-2015/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
Passenger Seat Belt Indicator ControlB059A 02B059A 04B059A 01

The inflatable restraint sensing and diagnostic module (SDM) monitors the passenger seat status and the passenger seat belt buckle switch and provides an output to the passenger seat belt indicator. When the SDM detects the passenger seat is occupied and the seat belt is not fastened, the SDM supplies a pulse width modulated signal to control the passenger seat belt indicator circuit. The SDM monitors the passenger seat belt indicator circuits and if a fault is detected a DTC will be set.

Ignition voltage is between 9-16 V.

Conditions for Setting the DTC

B059A 01

The passenger seat belt indicator circuit is shorted to voltage.

B059A 02

The passenger seat belt indicator circuit is shorted to ground.

B059A 04

The passenger seat belt indicator circuit is open.

The inflatable restraint sensing and diagnostic module will store the DTC.

The condition for setting the DTC no longer exists.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  3. «Wiring Repairs»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)
  4. «Connector Repairs»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)

Scan Tool Reference

Control Module References for scan tool information

Note. When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector. P14 passenger air bag disable indicator K36 inflatable restraint sensing and diagnostic module

  1. Ignition OFF.
  2. Disconnect the harness connector at the P14 passenger air bag disable indicator.
  3. Test for less than 10 ohms between the ground circuit terminal 2 and ground. If 10 ohms or greater Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
  4. Connect a test lamp between the control circuit terminal 5 and ground.
  5. Ignition ON.
  6. Occupy the passenger seat, buckle and unbuckle the passenger seat belt, the test lamp should turn OFF and ON while changing between buckled and unbuckled. If the test lamp is always on Ignition OFF, disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module, ignition ON. Test for less than 1 V between the signal circuit and ground. If 1V or greater, repair the short to voltage on the circuit. If less than 1V, replace the K36 inflatable restraint sensing and diagnostic module. If the test lamp is always off Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Test for infinite resistance between the seat belt switch signal circuit terminal 45 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in each control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 inflatable restraint sensing and diagnostic module. If test lamp turns on and off while changing between the commanded states
  7. Replace the P14 passenger air bag disable indicator.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Inflatable Restraint Instrument Panel Module Indicator Replacement»(/chevrolet/equinox/ii-2009-2015/remont/airbag/#supplemental-inflatable-restraint-system) for passenger air bag disable indicator replacement
  2. «Control Module References»(/chevrolet/equinox/ii-2009-2015/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for inflatable restraint sensing and diagnostic module replacement, setup, and programming

Symptoms - Seat Belts

Note. Review the seat belt system description and operation in order to familiarize yourself with the system and how it functions. Refer to Seat Belt System Description and Operation .

Visual/Physical Inspection

  1. Inspect for aftermarket devices which could affect the operation of the seat belt system. Refer to «Checking Aftermarket Accessories»(/chevrolet/equinox/ii-2009-2015/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 the following symptom diagnostic procedure in order to diagnose the symptom

  1. «Seat Belt Indicator Malfunction - Driver»(/chevrolet/equinox/ii-2009-2015/remont/restraints-control-systems/#seat-belt-system)
  2. «Seat Belt Indicator Malfunction - Passenger»(/chevrolet/equinox/ii-2009-2015/remont/restraints-control-systems/#seat-belt-system)

Seat Belt Does Not Retract

  1. Grab the seat belt webbing and slowly and firmly extract 15-25 mm (5/8-1 in) of webbing from the seat belt.
  2. Release the seat belt and allow the webbing to slowly retract back into the retractor.
  3. Check to see if the seat belt is released. If the seat belt is not released, repeat steps 1 and 2, two times more.
  4. If the retractor does not release after repeating the steps, replace with a new retractor.
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/equinox/ii-2009-2015/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/equinox/ii-2009-2015/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
Signal122
Ground2
1. Indicator will remain ON with seat belt buckled. 2. Indicator will illuminate only for the bulb check.

The driver seat belt switch is a 2-wire switch wired to the inflatable restraint sensing and diagnostic module using a signal circuit and a low reference circuit. When the seat belt is unbuckled the switch is closed, and when the seat belt is buckled the switch is open. The inflatable restraint sensing and diagnostic module sends the status of the driver seat belt via serial data to the instrument panel cluster. After receiving the message, the instrument panel cluster controls the illumination of the driver seat belt indicator.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/equinox/ii-2009-2015/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. Command the instrument cluster all indicators ON and OFF with a scan tool. The driver seat belt indicator should turn ON and OFF as commanded. If the driver seat belt indicator does not turn ON and OFF as commanded . Replace the P16 instrument cluster. If the driver seat belt indicator does turn ON and OFF as commanded.
  2. Monitor the scan tool Driver Seat Belt Switch parameter while buckling and unbuckling the seat belt. The parameter should display Buckled and Unbuckled when changing seat belt states: If the scan tool Driver Seat Belt Switch parameter does not display Buckled and Unbuckled when changing seat belt states. Refer to Circuit/System Testing below. If the scan tool Driver Seat Belt Switch parameter does display Buckled and Unbuckled when changing seat belt states.
  3. All OK.

Note. When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector. B88 Seat belt switch Seat belt switch harness connector K36 inflatable restraint sensing and diagnostic module SDM wiring harness connector

  1. Ignition OFF.
  2. Disconnect the harness connector at the B88 seat belt switch.
  3. Test for less than 5 ohms between the low reference circuit terminal B and ground. If 5 ohms or greater Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Test for less than 2 ohms in each control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 inflatable restraint sensing and diagnostic module. If less than 5 ohms
  4. Ignition ON.
  5. Verify the scan tool Driver Seat Belt Status parameter displays Buckled. If the scan tool Driver Seat Belt Status parameter does not display Buckled Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Test for infinite resistance between the seat belt switch signal circuit terminal A and ground. If less than infinite resistance, repair the short to ground on the circuit. If greater than infinite resistance, replace the K36 inflatable restraint sensing and diagnostic module. If the scan tool Driver Seat Belt Status parameter does display Buckled
  6. Install a 3 A fused jumper wire between the signal circuit terminal A and the low reference circuit terminal B.
  7. Verify the scan tool Driver Seat Belt Status parameter displays Unbuckled. If the scan tool Driver Seat Belt Status parameter does not display Unbuckled Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Test for less than 2 ohms in each circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 inflatable restraint sensing and diagnostic module. If the scan tool Driver Seat Belt Status parameter does display Unbuckled
  8. Test or replace the B88 seat belt switch.
  1. Ignition OFF.
  2. Disconnect the harness connector at the B88 seat belt switch.
  3. B88 seat belt switch in the buckled position.
  4. Test for infinite resistance between the signal circuit terminal A and the ground terminal B at the B88 seat belt switch. If less than infinite resistance Replace the B88 seat belt switch. If infinite resistance
  5. B88 seat belt switch in the unbuckled position.
  6. Test for less than 1 ohms between the signal circuit terminal A and the ground terminal B at the B88 seat belt switch. If 1 ohms or greater Replace the B88 seat belt switch. If less than 1 ohms
  7. All OK.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Front Seat Belt Buckle Replacement»(/chevrolet/equinox/ii-2009-2015/remont/restraints-control-systems/#seat-belt-system)
  2. «Control Module References»(/chevrolet/equinox/ii-2009-2015/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for inflatable restraint sensing and diagnostic module and instrument panel cluster replacement, setup, and programming
  1. Perform the «Diagnostic System Check - Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/chevrolet/equinox/ii-2009-2015/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/equinox/ii-2009-2015/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
Signal122
Ground2
1. Indicator will remain ON with seat belt buckled. 2. Indicator will illuminate only for the bulb check.

When an individual is sitting in the passenger seat the passenger presence sensor detects the individual. A signal to the SDM indicates a person is in the passenger seat. The SDM will turn the passenger seat belt indicator on. The passenger seat belt switch is a 2-wire switch wired to the inflatable restraint sensing and diagnostic module (SDM) using a signal circuit and a low reference circuit. When the seat belt is unbuckled the switch is closed, and when the seat belt is buckled the switch is open. The SDM sends the status of the passenger seat belt via a hard wire to the passenger air bag disable switch. After receiving the message, the passenger air bag disable switch controls the illumination of the passenger seat belt indicator.

Diagnostic Aids

Objects on the passenger seat can cause the passenger seat belt reminder to be commanded on. Depending on the sensing technology used, a conductive object (computers, MP3 players, cell phones, diagnostic scan tool, wires, a hand, etc.) placed on the passenger seat may cause the Passenger Presence Detection Module to command the passenger air bag indicator ON and/or command the passenger seat belt indicator ON. The fasten seat belt chime will also sound.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/chevrolet/equinox/ii-2009-2015/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

Passenger Presence Malfunction

  1. Ignition ON.
  2. Have someone sit in the passenger seat.
  3. With a scan tool verify the Automatic Occupant Sensing Current Front Occupancy Status indicates Occupied. If the Automatic Occupant Sensing Current Front Occupancy Status does not indicate Occupied Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Test for infinite resistance between the following circuits terminal and ground: Sensor signal circuit terminal Sensor low reference circuit terminal If less than infinite resistance, repair the short to ground on the circuit If infinite resistance Test for less than 2 ohms in each circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the passenger presence sensor. If the Automatic Occupant Sensing Current Front Occupancy Status does indicate Occupied
  4. Ignition ON.
  5. With a scan tool perform the Passenger Seat Belt Reminder Indicator On/Off Control Function and verify the passenger seat belt indicator turns on and off. If the passenger seat belt indicator does not turn on and off Refer to Seat Belt Indicator Malfunction below. If the passenger seat belt indicator does turn on and off
  6. With the scan tool monitor the Passenger Seat Belt Status parameter while buckling and unbuckling the seat belt. The parameter should display Buckled and Unbuckled when buckling and unbuckling the seat belt. If the Passenger Seat Belt Status parameter does not display Buckled and Unbuckled Refer to Seat Belt Switch Malfunction below. If the Passenger Seat Belt Status parameter does display Buckled and Unbuckled
  7. Replace the passenger presence sensor.

Seat Belt Switch Malfunction

  1. Ignition OFF.
  2. Disconnect the harness connector at the appropriate B88 passenger seat belt switch.
  3. Test for less than 5 ohms between the ground circuit terminal B and ground. If 5 ohms or greater Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Test for less than 2 ohms in each control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 inflatable restraint sensing and diagnostic module. If less than 5 ohms
  4. Ignition ON.
  5. Verify the scan tool Passenger Seat Belt Status parameter listed below is Buckled. If the scan tool Passenger Seat Belt Status parameter does not display Buckled Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Test for infinite resistance between the seat belt switch signal circuit terminal 2 and ground. If less than infinite resistance, repair the short to ground on the circuit. If less infinite resistance, replace the K36 inflatable restraint sensing and diagnostic module. If the scan tool Passenger Seat Belt Status parameter does display Buckled
  6. Install a 3 A fused jumper wire between the signal circuit terminal A and the ground circuit terminal B.
  7. Verify the scan tool Passenger Seat Belt Status parameter is Unbuckled. If the scan tool Passenger Seat Belt Status parameter does not display Unbuckled Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Ignition ON. Test for less than 1 V between the signal circuit and ground. If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V Test for less than 2 ohms in each circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 inflatable restraint sensing and diagnostic module. If the scan tool Passenger Seat Belt Status parameter does display Unbuckled
  8. Ignition OFF, reconnect all harness connectors. Ignition ON.
  9. With a scan tool, monitor the Passenger Seat Belt Status parameter while buckling and unbuckling the seat belt. The parameter should display Buckled and Unbuckled when buckling and unbuckling the seat belt. If the Passenger Seat Belt Status parameter does not display Buckled and Unbuckled Test or replace the B88 passenger seat belt switch. If the Passenger Seat Belt Status parameter does display Buckled and Unbuckled
  10. All OK.

Seat Belt Indicator Malfunction

  1. Ignition OFF.
  2. Disconnect the harness connector at the P14 passenger air bag disable indicator.
  3. Test for less than 5 ohms between the ground circuit terminal 2 and ground. If 5 ohms or greater Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Test for less than 2 ohms in each control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 inflatable restraint sensing and diagnostic module. If less than 5 ohms
  4. Connect a test lamp between the control circuit terminal 5 and ground.
  5. Ignition ON.
  6. Command the Passenger Seat Belt Reminder ON and OFF with a scan tool, the test lamp should turn ON and OFF while changing between the commanded states. If the test lamp is always on Ignition OFF. Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Ignition ON. Test for less than 1 V between the signal circuit and ground. If 1V or greater, repair the short to voltage on the circuit. If less than 1V, replace the K36 inflatable restraint sensing and diagnostic module. If the test lamp is always off Disconnect the harness connector at the K36 inflatable restraint sensing and diagnostic module. Test for infinite resistance between the seat belt switch signal circuit terminal 4 and ground. If less than infinite resistance, repair the short to ground on the circuit. Test for less than 2 ohms in each control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K36 inflatable restraint sensing and diagnostic module. If test lamp turns on and off while changing between the commanded states
  7. Replace the P14 passenger air bag disable indicator.
  1. Ignition OFF.
  2. Disconnect the harness connector at the appropriate B88 passenger seat belt switch.
  3. B88 seat belt buckle in the buckled position.
  4. Test for infinite resistance between the signal circuit terminal A and the ground terminal B at the B88 passenger seat belt switch. If less than infinite resistance Replace the B88 passenger seat belt switch. If infinite resistance
  5. B88 seat belt switch in the unbuckled position.
  6. Test for less than 2 ohms between the signal circuit terminal A and the ground terminal B at the B88 passenger seat belt switch. If 2 ohms or greater Replace the B88 passenger seat belt switch. If less than 2 ohms
  7. All OK.

Perform the Diagnostic Repair Verification after completing the repair

  1. «Inflatable Restraint Instrument Panel Module Indicator Replacement»(/chevrolet/equinox/ii-2009-2015/remont/airbag/#supplemental-inflatable-restraint-system)
  2. «Front Seat Belt Buckle Replacement»(/chevrolet/equinox/ii-2009-2015/remont/restraints-control-systems/#seat-belt-system)
  3. «Inflatable Restraint Front Passenger Presence Sensor Replacement»(/chevrolet/equinox/ii-2009-2015/remont/airbag/#supplemental-inflatable-restraint-system)
  4. «Control Module References»(/chevrolet/equinox/ii-2009-2015/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for SDM and instrument panel cluster replacement, programming and setup

Repairs and Inspections Required After a Collision

WARNINGRestraint systems can be damaged in a collision. To help avoid injury and ensure that all parts in need of replacement are replaced: Replace any seat belt system that was in use during the collision serious enough to deploy any automatic restraint device such as air bags and seat belt pretensioners. This not only includes seat belt systems in use by people of adult size, but seat belt systems used to secure child restraints, infant carriers and booster seats, including LATCH system and top tether anchorages. Replace any seat belt system that has torn, worn, or damaged components. This not only includes adult seat belt systems, but built-in child restraints and LATCH system components, if any. Replace any seat belt system if you observe the words "REPLACE" or "CAUTION", or if a yellow tag is visible. Do not replace a seat belt if only the child seat caution label is visible. Replace any seat belt system if you are doubtful about its condition. This not only includes adult seat belt systems, but built-in child restraints, LATCH system components, and any restraint system used to secure infant carriers, child restraints, and booster seats. Do NOT replace single seat belt system components in vehicles that have been in a collision as described above. Always replace the entire seat belt system with the buckle, guide and retractor assembly, which includes the latch and webbing material.

After a minor collision where no automatic restraint device was deployed, seat belt system replacement may not be necessary, unless some of the parts are torn, worn, or damaged.

Scheme 2

Scheme 2: Seat Belt Latch Stop Installation
Scheme 2: Seat Belt Latch Stop Installation
CalloutComponent Name
Preliminary Procedure Locate the hole in the seat belt webbing where the original seat belt stop button was located. If the original hole in the seat belt webbing is not visible, perform the following: If either the right or left stop button is missing use the opposing seat belt as a reference. With the opposing seat belt fully stowed, measure the distance between the seat belt lower anchor and the stop button. Using the measurement obtained above, measure and mark the location of the missing stop button on the center of the seat belt webbing. Ensure the seat belt latch plate is located above the mark or original hole.
1Seat Belt Stop Button Procedure Work the male half of the stop button through the hole in the webbing or at the marked location. Align the female half of the stop button with the male half of the stop button. Snap the two halves together. Trim off any access of the male half of the stop button flush with the female half of the stop button. TIP: Ensure the male half of the stop button is facing forward in the vehicle in order to ensure the stop button will not snag customers clothing.

Seat Belt Latch Stop Installation

Scheme 3

Scheme 3: Front Seat Belt Buckle Replacement
Scheme 3: Front Seat Belt Buckle Replacement
CalloutComponent Name
1Front Seat Belt Buckle Bolt CAUTION: Refer to Fastener Caution . Tighten 45 N.m (33 lb ft)
2Front Seat Belt Buckle Procedure Disconnect the electrical connector under the seat. Slide the buckle assembly upwards and out from between the seat cushion and the seat cushion inner trim panel.
CAUTION
Refer to Fastener Caution .

Front Seat Belt Buckle Replacement

Scheme 4

Scheme 4: Rear Seat Buckle Side Belt Replacement
Scheme 4: Rear Seat Buckle Side Belt Replacement
CalloutComponent Name
Preliminary Procedures Remove the rear seat. Refer to Rear Seat Replacement . Remove the rear seat retaining bolts and reposition the seat in the vehicle to access the buckle bolts on the underside of the seat.
1Rear Seat Belt Buckle Bolt CAUTION: Refer to Fastener Caution . Tighten 50 N.m (37 lb ft)
2Rear Seat Belt Buckle
CAUTION
Refer to Fastener Caution .

Rear Seat Buckle Side Belt Replacement

Scheme 5

Scheme 5: Rear Seat Center Belt Replacement
Scheme 5: Rear Seat Center Belt Replacement
CalloutComponent Name
Preliminary Procedures Remove the rear seat cushion cover and pad. Refer to Rear Seat Cushion Cover and Pad Replacement . Remove the sixty percent rear seat back cushion cover and pad. Refer to Rear Seat Back Cushion Cover and Pad Replacement (with 40 percent seat) , Rear Seat Back Cushion Cover and Pad Replacement (with 60 percent seat) .
1Rear Seat Center Belt Anchor Bolt CAUTION: Refer to Fastener Caution . Tighten 45 N.m (33 lb ft)
2Rear Seat Center Belt Retractor Nut Tighten 45 N.m (33 lb ft)
3Rear Seat Center Retractor Assembly
CAUTION
Refer to Fastener Caution .

Rear Seat Center Belt Replacement

Scheme 6

Scheme 6: Front Seat Belt Guide Adjuster Replacement
Scheme 6: Front Seat Belt Guide Adjuster Replacement
CalloutComponent Name
Preliminary Procedures Disable the SIR system. Refer to SIR Disabling and Enabling . Remove the center pillar upper trim. Refer to Center Pillar Upper Trim Panel Replacement . Remove the front seat retractor side belt fastener. Refer to Driver or Passenger Seat Retractor Side Belt Replacement .
1Front Seat Shoulder Belt Guide Adjuster Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 45 N.m (33 lb ft)
2Front Seat Shoulder Belt Guide Adjuster Assembly
CAUTION
Refer to Fastener Caution .

Front Seat Belt Guide Adjuster Replacement

Scheme 7

Scheme 7: Rear Seat Retractor Side Belt Replacement
Scheme 7: Rear Seat Retractor Side Belt Replacement
CalloutComponent Name
Preliminary Procedures Remove the quarter window trim finish panel. Refer to Quarter Window Trim Finish Panel Replacement . Remove the body side trim panel. Refer to Body Side Trim Panel Replacement - Left Side , and Body Side Trim Panel Replacement - Right Side .
1Rear Seat Shoulder Belt Anchor Plate Fastener CAUTION: Refer to Fastener Caution . Tighten 45 N.m (33 lb ft)
2Rear Seat Belt Retractor Fastener (Qty: 2) Tighten 45 N.m (33 lb ft)
3Rear Seat Retractor Side Belt Assembly
CAUTION
Refer to Fastener Caution .

Rear Seat Retractor Side Belt Replacement

Restraint System

The vehicle has front and rear seat belts that are the primary means of occupant restraint. Seat belts help to keep the occupants inside the passenger compartment and to gradually reduce the impact forces during the following events

  1. Frontal impact type crashes
  2. Rear impact type crashes
  3. Side impact type crashes
  4. Roll-over type crashes

All seat belt retractors have emergency locks. The retractors remain unlocked during normal operation and under normal driving conditions. The retractors remain unlocked during normal conditions in order to allow free movement of the upper body of each occupant. A pendulum locks the seat belt webbing into position. The pendulum causes a locking bar to engage a cog on the spool of the retractor mechanism when the following conditions occur

  1. A rapid extraction of the seat belt webbing from the retractor
  2. An abrupt change in vehicle speed
  3. An abrupt change in vehicle direction
  4. Operation of the vehicle on a steep upgrade
  5. Operation of the vehicle on a downgrade

The seat belts have an automatic locking (cinch) feature. The cinch feature is activated when the seat belt webbing is completely extended from the retractor. The cinch feature prevents the webbing from extending beyond the position from which it is allowed to retract. Use of the cinch feature is recommended for securing a child seat. The cinch feature may be cancelled by allowing the webbing to wind back completely into the retractor. After the cinch feature is cancelled, the webbing is unlocked. After the cinch feature is cancelled, the webbing will extend from the retractor. This vehicle is also equipped with a supplemental inflatable restraint (SIR) system. Refer to SIR System Description and Operation

The front seat belt system includes a driver and passenger seat belt pretensioner retractor. Both front seat belt pretensioners includes a seat belt switch in the seat buckle which controls a reminder lamp and a tone alarm.

Note. The front passenger seat is equipped with a seat belt reminder sensor, which detects an occupant. If the seat belt reminder sensor detects an empty front passenger seat, then the passenger fasten safety belt indicator will be disabled.

  1. When the driver seat belt is buckled and the ignition switch is turned ON, the following events will occur: The tone alarm will not operate. The reminder lamp will not operate.
  2. When the passenger seat belt is buckled with an occupant sitting in the passenger front seat, then the ignition switch is turned ON, the following events will occur: The tone alarm will not operate. The reminder lamp, which is located within the Passenger Air Bag Disable Indicator, will not be turned ON.
  3. When the driver seat belt is not buckled and the ignition switch is in the ON position, the following events will occur: The tone alarm will operate for 4-8 seconds and then go OFF. The fasten safety belt indicator will turn ON for 20 seconds, until the driver seat belt is buckled.
  4. When the passenger seat belt is not buckled with an occupant sitting in the passenger front seat, then the ignition switch is turned ON, the following events will occur: The tone alarm will operate for 4-8 seconds and then go OFF. The reminder lamp, which is located within the Passenger Air Bag Disable Indicator, will be turned ON.

The Rear Seat Belt System includes the following components

  1. The rear seat belt retractor is located at the wheelhouse panel and attached to the floor panel by the rear seat shoulder belt retractor bracket.
  2. The rear and the middle seat belt buckles are attached to each seat.

Child Seat Restraint System

WARNINGA child in a rear-facing child restraint can be seriously injured if the right-front passengers air bag inflates. This is because the back of a rear-facing child restraint would be very close to the inflating air bag. NEVER use a rear-facing child restraint in this vehicle. If a forward-facing child restraint is suitable for your child, ALWAYS move the front passenger seat as far back as it will go and then install the child restraint. Be sure the child restraint position does not conflict with any additional requirements provided by the manufacturer. For more information, refer to the vehicle owners manual and the instruction that came with the child restraint.

A child in a rear-facing child restraint can be seriously injured if the right-front passengers air bag inflates. This is because the back of a rear-facing child restraint would be very close to the inflating air bag. NEVER use a rear-facing child restraint in this vehicle. If a forward-facing child restraint is suitable for your child, ALWAYS move the front passenger seat as far back as it will go and then install the child restraint. Be sure the child restraint position does not conflict with any additional requirements provided by the manufacturer. For more information, refer to the vehicle owners manual and the instruction that came with the child restraint.

The child seat may only be used in a forward facing seating location. The child seat should be installed and secured according to the manufacturer's directions. If the child seat has a top strap, the seat will need to be anchored. Passengers should not be allowed to sit at locations where the seat belts are being used to secure the child seat.

All vehicles are equipped with a dual-mode type retractor with emergency and automatic locking features. The automatic locking feature is for restraint of a child seat. The child seat can be secured by pulling the seat belt all the way out to lock it. Then tighten the seat belt around the child seat.

If a child seat is to be used in the second seat position, a special dealer-installed anchor must be used in order to anchor the child seat top strap. This only applies to the seats designed with the top strap provision and for the vehicles sold in Canada. In order to ensure the correct top strap angle, the child seat is only to be used at the seating position for which the top strap anchor is installed.

Fasten Safety Belt Indicators

There are two fasten safety belt indicators for this vehicle. The driver fasten safety belt reminder is displayed in the instrument cluster, and the passenger fasten safety belt reminder is displayed in the passenger air bag disable indicator. The fasten safety belt indicator may only be ON during RUN. The fasten safety belt indicator illuminates under the following conditions

  1. During the bulb check
  2. The inflatable restraint sensing and diagnostic module (SDM) sends the status of the driver seat belt to the instrument cluster via serial data. The passenger seat belt status is sent to the passenger air bag disable indicator DIC via a hardwire. If any of the seat belts are unfastened, the inflatable restraint sensing and diagnostic module will send a serial data message to the radio requesting a chime sound to be turned ON after a bulb check.