Lighting System: Other Chevrolet Spark M300

Reference Information

Schematic Reference

1. «Interior Lights Dimming Schematics»(ref-544462-S05124755402013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

1. «Instrument Panel Multifunction Switch Replacement»(ref-544464-S04104213362013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Interior Lights Schematics»(ref-544462-S01186878562013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Fog Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Relay Replacement (Within an Electrical Center)»(ref-544488-S02508123392013042400000) , «Relay Replacement (Attached to Wire Harness)»(ref-544488-S18974667042013042400000)
2. «Fuse Block Replacement»(ref-544488-S16381950902013042400000)
3. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Body Control System Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Tail Lamp Bulb Replacement»(ref-544462-S21073570262013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Interior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Rear Compartment Courtesy Lamp Replacement»(ref-544462-S22409825212013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Headlights/Daytime Running Lights (DRL) Schematics»(ref-544462-S26061632382013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Headlamp Bulb Replacement»(ref-544462-S23985687762013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Headlights/Daytime Running Lights (DRL) Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Turn Signal Switch Replacement»(ref-544463-S03735060772013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Headlights/Daytime Running Lights (DRL) Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Relay Replacement (Within an Electrical Center)»(ref-544488-S02508123392013042400000) , «Relay Replacement (Attached to Wire Harness)»(ref-544488-S18974667042013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Exterior Lights Schematics»(ref-544462-S35316171852013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Tail Lamp Replacement»(ref-544462-S07042563772013042400000)
2. «Parking and Turn Signal Lamp Bulb Replacement»(ref-544462-S35729948362013042400000)
3. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Interior Lights Dimming Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Hazard Warning Switch Replacement»(ref-544462-S37818936612013042400000)
2. «Transmission Control Replacement»(ref-544493-S14568220012013042400000)
3. «Steering Wheel Control Switch Assembly Replacement»(ref-544494-S00074292752013042400000)
4. «Control Module References»(ref-544475-S18239609172013042400000) for BCM or HVAC control module replacement, programming, and setup

Schematic Reference

1. «Interior Lights Schematics»(ref-544462-S01186878562013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Interior Lights Dimming Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

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

Schematic Reference

Interior Lights Dimming Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Hazard Warning Switch Replacement»(ref-544462-S37818936612013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Hazard Warning Switch Replacement»(ref-544462-S37818936612013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Interior Lights Dimming Schematics»(ref-544462-S05124755402013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Instrument Panel Multifunction Switch Replacement»(ref-544464-S04104213362013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Headlights/Daytime Running Lights (DRL) Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Turn Signal Switch Replacement»(ref-544463-S03735060772013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Headlights/Daytime Running Lights (DRL) Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Turn Signal Switch Replacement»(ref-544463-S03735060772013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Tail Lamp Replacement»(ref-544462-S07042563772013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Rear License Plate Lamp Replacement»(ref-544462-S05697004062013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «High Mount Stop Lamp Replacement»(ref-544462-S00417043292013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Exterior Lights Schematics»(ref-544462-S35316171852013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Parking and Turn Signal Lamp Bulb Replacement»(ref-544462-S35729948362013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Exterior Lights Schematics»(ref-544462-S35316171852013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Tail Lamp Bulb Replacement»(ref-544462-S21073570262013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Brake Pedal Position Sensor Replacement»(ref-544462-S05870166322013042400000)
2. «Brake Pedal Position Sensor Calibration»(ref-544462-S06735997502013042400000)
3. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Cruise Control Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Brake Pedal Position Sensor Calibration»(ref-544462-S06735997502013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM or ECM replacement, programming, and setup

Symptoms - Lighting

Note. The following steps must be completed before using a symptom table.

1. Perform the «Diagnostic System Check - Vehicle»(ref-544470-S31312478522013042400000) before using a symptom table in order to verify that all of the following conditions are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the system description and operation in order to familiarize yourself with the system functions. Refer to the following: «Exterior Lighting Systems Description and Operation»(ref-544462-S20549895532013042400000) «Interior Lighting Systems Description and Operation»(ref-544462-S39834556272013042400000)

Intermittent

Thoroughly inspect the wiring and connectors. An incomplete inspection of the wiring and connectors may result in misdiagnosis causing part replacement with the reappearance of the malfunction. If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections .

Schematic Reference

Exterior Lights Schematics

Body Control System Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Tail Lamp Bulb Replacement»(ref-544462-S21073570262013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Body Control System Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Engine ON.
2. Verify the scan tool Reverse Position Switch parameter changes between ON and OFF while shifting the vehicle between the neutral and reverse gears. If the parameter does not change Refer to Backup Lamp Switch Malfunction below. If the parameter changes
3. Verify the backup lamps turn ON and OFF when commanding the Backup Lamps ON and OFF with a scan tool. If the backup lamps do not turn ON and OFF Refer to Backup Lamps Malfunction below. If the backup lamps turn ON and OFF
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Tail Lamp Bulb Replacement»(ref-544462-S21073570262013042400000)
2. «Backup Lamp Switch Replacement (MX2, MFM)»(ref-544496-S22678453882013042400000)
3. «Control Module References»(ref-544475-S18239609172013042400000) for BCM or ECM replacement, programming, and setup

Schematic Reference

1. «Interior Lights Schematics»(ref-544462-S01186878562013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Interior Lights Schematics»(ref-544462-S01186878562013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool Door Ajar Sw. parameter changes between Active and Inactive while opening and closing each vehicle door. If the parameter does not change Refer to «Door Ajar Indicator Malfunction»(ref-544497-S41629784072013042400000) . If the parameter changes
3. Verify the dome lamps turn ON and OFF while commanding the Courtesy Lamps ON and OFF with a scan tool. If the dome lamps do not turn ON and OFF Refer to Circuit/System Testing below. If the dome lamps turn ON and OFF
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Fog Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, headlamps ON.
2. Verify the scan tool Front Fog Lamps Switch parameter changes between Active and Inactive while commanding the front fog lamps ON and OFF with the front fog lamp switch. If the parameter does not change Refer to Front Fog Lamp Switch Malfunction below. If the parameter changes
3. Verify the front fog lamps turn ON and OFF when commanding the Front Fog Lamps ON and OFF with a scan tool. If the front fog lamps do not turn ON and OFF Refer to Front Fog Lamps Malfunction below. If the front fog lamps turn ON and OFF
4. Verify the front fog lamp indicator on the instrument cluster turns ON and OFF while commanding the front fog lamps ON and OFF with the front fog lamp switch. If the front fog lamp indicator does not turn ON and OFF Refer to Front Fog Lamp Indicator Malfunction below. If the front fog lamp indicator turns ON and OFF
5. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Front Fog Lamp Replacement (Projection)»(ref-544462-S23930657602013042400000)
2. «Front Fog Lamp Bulb Replacement (Projection)»(ref-544462-S31259013752013042400000)
3. «Relay Replacement (Within an Electrical Center)»(ref-544488-S02508123392013042400000) , «Relay Replacement (Attached to Wire Harness)»(ref-544488-S18974667042013042400000)
4. «Fuse Block Replacement»(ref-544488-S16381950902013042400000)
5. «Control Module References»(ref-544475-S18239609172013042400000) for BCM or Instrument Cluster replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool Hazard Lamps Switch parameter changes between Active and Inactive while commanding the hazard lamps ON and OFF with the hazard warning switch. If the parameter does not change Refer to Hazard Warning Switch Malfunction below. If the parameter changes
3. Verify all left and right turn signal lamps turn ON and OFF while commanding the hazard lamps ON and OFF with the hazard warning switch. If all turn signal lamps do not turn ON and OFF Refer to «Turn Signal Lamps and/or Indicators Malfunction»(ref-544462-S05981806712013042400000) If all turn signal lamps turn ON and OFF
4. Verify the hazard warning switch backlighting turns ON and OFF while commanding the Hazard Lamps Switch Backlight ON and OFF with a scan tool. If the hazard warning switch backlighting does not turn ON and OFF Refer to Hazard Warning Switch Backlighting Malfunction below. If the hazard warning switch backlighting turns ON and OFF
5. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Hazard Warning Switch Replacement»(ref-544462-S37818936612013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Headlights/Daytime Running Lights (DRL) Schematics»(ref-544462-S26061632382013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool Headlamps On Switch parameter changes between Active and Inactive while commanding the headlamp ON and OFF with the headlamp switch. If the parameter does not change Refer to Headlamp Switch Malfunction below. If the parameter changes
3. Verify the scan tool Headlamps Flash Switch parameter changes between Active and Inactive while commanding the flash to pass ON and OFF with the turn signal/multifunction switch. If the parameter does not change Refer to Turn Signal/Multifunction Switch Malfunction below. If the parameter changes
4. Verify the scan tool High Beam Select Switch parameter changes between Active and Inactive while commanding the high beams ON and OFF with the turn signal/multifunction switch. If the parameter does not change Refer to Turn Signal/Multifunction Switch Malfunction below. If the parameter changes
5. Verify the left low beam turns ON and OFF when commanding the Left Low Beam/Daytime Running Lamp ON and OFF with a scan tool. If the left low beam does not turn ON and OFF Refer to Headlamps Malfunction - Low Beam below. If the left low beam turns ON and OFF
6. Verify the right low beam turns ON and OFF when commanding the Right Low Beam/Daytime Running Lamp ON and OFF with a scan tool. If the right low beam does not turn ON and OFF Refer to Headlamps Malfunction - Low Beam below. If the right low beam turns ON and OFF
7. Verify the high beams turn ON and OFF when commanding the High Beams ON and OFF with a scan tool. If the high beams do not turn ON and OFF Refer to Headlamps Malfunction - High Beam below. If the high beams turn ON and OFF
8. Verify the high beam indicator on the instrument cluster turns ON and OFF while commanding the All Indicators Test ON and OFF with a scan tool. If the high beam indicator does not turn ON and OFF Refer to High Beam Indicator Malfunction below. If the high beam indicator turns ON and OFF
9. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Headlamp Bulb Replacement»(ref-544462-S23985687762013042400000)
2. «Relay Replacement (Within an Electrical Center)»(ref-544488-S02508123392013042400000) , «Relay Replacement (Attached to Wire Harness)»(ref-544488-S18974667042013042400000)
3. «Turn Signal Switch Replacement»(ref-544463-S03735060772013042400000)
4. «Control Module References»(ref-544475-S18239609172013042400000) for BCM or Instrument Cluster replacement, programming, and setup

Schematic Reference

Interior Lights Dimming Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool LED Backlight Dimming Command parameter changes between a high percentage to a low percentage while operating the dimmer switch from high to low. If the parameter does not change Refer to Dimmer Switch Malfunction below. If the parameter changes
3. Verify the backlighting components turn ON and OFF while commanding the LED Backlight Dimming ON and OFF with a scan tool. If the backlighting components do not turn ON and OFF Refer to Interior Backlighting Malfunction below. If the backlighting components turn ON and OFF
4. Verify the hazard warning switch backlighting turns ON and OFF while commanding the Hazard Lamps Switch Backlight ON and OFF with a scan tool. If the hazard warning switch backlighting does not turn ON and OFF Refer to Hazard Warning Switch Backlighting Malfunction below. If the hazard warning switch backlighting turns ON and OFF
5. Verify the amber HVAC recirculation indicator illuminates when turning the recirculation function ON/OFF. If the amber HVAC recirculation indicator does not illuminate Refer to HVAC Recirculation Indicator Malfunction below. If the amber HVAC recirculation indicator illuminates
6. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Hazard Warning Switch Replacement»(ref-544462-S37818936612013042400000)
2. «Transmission Control Replacement»(ref-544493-S14568220012013042400000)
3. «Steering Wheel Control Switch Assembly Replacement»(ref-544494-S00074292752013042400000)
4. «Control Module References»(ref-544475-S18239609172013042400000) for BCM or HVAC control module replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool Park Lamp Switch parameter changes between Active and Inactive while commanding the park lamps ON and OFF with the headlamp switch. If the parameter does not change Refer to Park Lamp Switch Malfunction below. If the parameter changes
3. Verify the left park lamps turn ON and OFF when commanding the Left Park Lamps ON and OFF with a scan tool. If the left park lamps do not turn ON and OFF Refer to Park Lamps Malfunction below. If the left park lamps turn ON and OFF
4. Verify the right park lamps turn ON and OFF when commanding the Right Park Lamps ON and OFF with a scan tool. If the right park lamps do not turn ON and OFF Refer to Park Lamps Malfunction below. If the right park lamps turn ON and OFF
5. Verify the license plate lamp turns ON and OFF when commanding the License Plate Lamps ON and OFF with a scan tool. If the license plate lamp does not turn ON and OFF Refer to License Plate Lamp Malfunction below. If the license plate lamp turns ON and OFF
6. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Rear License Plate Lamp Replacement»(ref-544462-S05697004062013042400000)
2. «Parking and Turn Signal Lamp Bulb Replacement»(ref-544462-S35729948362013042400000)
3. «Turn Signal Switch Replacement»(ref-544463-S03735060772013042400000)
4. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Interior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Interior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

Perform the Diagnostic Repair Verification after completing the repair.

1. «Rear Compartment Courtesy Lamp Replacement»(ref-544462-S22409825212013042400000)
2. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

Exterior Lights Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool Brake Lamps Command parameter changes between Active and Inactive while pressing and releasing the brake pedal. If the parameter does not change Refer to Brake Pedal Position Sensor Malfunction below. If the parameter changes
3. Verify the left brake lamp turns ON and OFF when commanding the Left Brake Lamp ON and OFF with a scan tool. If the left brake lamp does not turn ON and OFF Refer to Stop Lamps Malfunction below. If the left brake lamp turns ON and OFF
4. Verify the right brake lamp turns ON and OFF when commanding the Right Brake Lamp ON and OFF with a scan tool. If the right brake lamp does not turn ON and OFF Refer to Stop Lamps Malfunction below. If the right brake lamp turns ON and OFF
5. Verify the center high mounted stop lamp turns ON and OFF when commanding the Center Brake Lamp ON and OFF with a scan tool. If the center high mounted stop does not turn ON and OFF Refer to Center High Mount Stop Lamp Malfunction below. If the center high mounted stop turns ON and OFF
6. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «High Mount Stop Lamp Replacement»(ref-544462-S00417043292013042400000)
2. «Tail Lamp Bulb Replacement»(ref-544462-S21073570262013042400000)
3. «Brake Pedal Position Sensor Replacement»(ref-544462-S05870166322013042400000)
4. «Brake Pedal Position Sensor Calibration»(ref-544462-S06735997502013042400000)
5. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Schematic Reference

1. «Exterior Lights Schematics»(ref-544462-S35316171852013042400000)
2. «Body Control System Schematics»(ref-544492-S10761470052013042400000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Exterior Lighting Systems Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-544474-S28522670622013042400000)
2. «Connector Repairs»(ref-544474-S01694319662013042400000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-544474-S10250380742013042400000)
4. «Wiring Repairs»(ref-544474-S21510154002013042400000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool Right Turn Signal Switch and Left Turn Signal Switch parameters change between Active and Inactive while cycling the turn signal switch between the right and left positions. If the parameters do not change Refer to Turn Signal/Multifunction Switch Malfunction below. If the parameters change
3. Verify the left front turn signal lamps turn ON and OFF while commanding the Left Front Turn Signal Lamp ON and OFF with a scan tool. If the left front turn signal lamps do not turn ON and OFF Refer to Turn Signal Lamps Malfunction below. If the left front turn signal lamps turn ON and OFF
4. Verify the right front turn signal lamps turn ON and OFF while commanding the Right Front Turn Signal Lamp ON and OFF with a scan tool. If the right front turn signal lamps do not turn ON and OFF Refer to Turn Signal Lamps Malfunction below. If the right front turn signal lamps turn ON and OFF
5. Verify the left rear turn signal lamps turn ON and OFF while commanding the Left Rear Turn Signal Lamp ON and OFF with a scan tool. If the left rear turn signal lamps do not turn ON and OFF Refer to Turn Signal Lamps Malfunction below. If the left rear turn signal lamps turn ON and OFF
6. Verify the right rear turn signal lamps turn ON and OFF while commanding the Right Rear Turn Signal Lamp ON and OFF with a scan tool. If the right rear turn signal lamps do not turn ON and OFF Refer to Turn Signal Lamps Malfunction below. If the right rear turn signal lamps turn ON and OFF
7. Verify the left and right turn signal indicators turn ON and OFF while commanding the All Indicators Test ON and OFF with a scan tool. If the left or right turn signal indictors do not turn ON and OFF Refer to Turn Signal Indicators Malfunction below. If the left and right turn signal indictors turn ON and OFF
8. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Parking and Turn Signal Lamp Bulb Replacement»(ref-544462-S35729948362013042400000)
2. «Tail Lamp Bulb Replacement»(ref-544462-S21073570262013042400000)
3. «Turn Signal Switch Replacement»(ref-544463-S03735060772013042400000)
4. «Control Module References»(ref-544475-S18239609172013042400000) for BCM replacement, programming, and setup

Scheme 16

Stop Lamp Switch Replacement

Visual Aiming Preparation Procedure

Note. Some state and local laws specify requirements for headlamp aim. Comply with all of these laws when performing any headlamp aiming operations.

Headlamp aim should be checked

1. When a new headlamp capsule is installed.
2. If service or repairs to the front end area have, or may have, disturbed the headlamps or their mounting.

The aiming screen should meet the following criteria

1. The area will consist of a level surface large enough to allow for a vehicle and an additional 7.62 m (25 ft) measured from face of lamps to the front of the aiming screen.
2. The screen will be 1.52 m (5 ft) high x 3.66 m (12 ft) wide with a matte white surface well shaded from extraneous light, and properly adjusted to the floor on which the vehicle stands. Provisions should be made to align the aiming screen parallel with the vehicle.
3. The screen shall be provided with a fixed vertical centerline, two laterally adjustable vertical tapes, and one vertically adjustable horizontal tape.
4. If a regular commercial aiming screen is not available, the screen may consist of a vertical wall having a clear uninterrupted area approximately 1.83 m (6 ft) high and 3.66 m (12 ft) wide. The surface should be finished with a washable non-gloss white paint.
5. After the aiming screen has been set up in a permanent location, paint a reference line on the floor directly under the lens of the lamps to indicate the proper location of the headlamps when they are being aimed: Distance between headlamps (1) Center line of screen (2) Adjustable vertical pointer (3) Adjustable horizontal tape (4) Diagram of light screen (5) Vertical center line ahead of right headlamp pointer position (6) 7.62 m (25 ft) (7) Car axis (8) Adjustable vertical pointer Horizontal center line of lamps Vertical center line ahead of left headlamp

Prior to aiming the headlamps, the following steps must be taken

1. Remove any snow, ice or mud from the vehicle.
2. The vehicle must have a full tank of gas.
3. Stop all other work on the vehicle.
4. If any service has been performed on the vehicle, make sure that all of the components are back in their original place.
5. The vehicle must be on a level surface.
6. The vehicle left tires must be aligned with the reference line extending from the screen with the headlamps aligned with the reference line.
7. Do not load any cargo in the vehicle.
8. The vehicle must contain approximately 75 kg (165 lb) on the driver seat.
9. Inflate the tires to the proper pressure.
10. Simulate the vehicle loads if the intended use of the vehicle is for hauling heavy loads or towing a trailer.
11. Rock the vehicle in order to stabilize the suspension.
12. Turn on the headlamps to low beam and observe the left and the top edges of the high intensity zone on the screen. The edges of the high intensity zone should fall within the specifications.

Headlamp Aiming Procedure

1. Open the hood.
2. Measure from the floor to the center of the headlamp bulb. Some headlamps have an aim dot marked on the headlamp lens.
3. At the screen, measure from the floor and place the horizontal tape at the measured distance.
4. Measure from the reference line on the floor to the left headlamp bulb centerline.
5. At the screen, measure from the reference line and place the vertical tape at the measured distance.
6. Measure from the reference line on the floor to the right headlamp bulb centerline.
7. At the screen, measure from the reference line and place the vertical tape at the measured distance.
8. Turn ON the low beam headlamps. Block the light from projecting onto the screen from the passenger side headlamp.
9. Adjust the vertical aim screw (1) of the headlamps to the specifications required by the state and the local authorities, or as shown in step number 8.
10. Repeat the aiming procedure for the passenger side headlamp while blocking the light from projecting onto the screen from the driver side headlamp.
11. Turn the headlamps OFF.
12. Close the hood.

Scheme 17

Front Fog Lamp Replacement (Projection)

Scheme 18

Front Fog Lamp Bulb Replacement (Projection)

Scheme 19

Front Fog Lamp Cover Replacement

Preparation Procedure

Note. Horizontal aim is not adjustable on this vehicle. Vertical aim is done by an adjusting nut located on the rear of the fog lamp. Prior to aiming the fog lamps, perform the following steps

1. Completely assemble all of the components on the vehicle.
2. Place the vehicle on a level surface.
3. Stop all unnecessary operations or work that could affect the ride height of the vehicle.
4. Close the doors and verify that the luggage compartment is empty.
5. Stabilize the suspension by rocking the vehicle sideways.
6. Ensure that the fuel level is full.
7. Ensure that the tires are inflated to the proper pressure.
8. Ensure that the driver or a similar weight, approximately 75 kg (165 lb), is in the vehicle driver seat.

Aiming Procedure

1. Park the vehicle 7.6 m (25 ft) away from the target screen.
2. Measure from the center of the fog lamp to the ground line. Using this measurement, mark the horizontal centerline (2) of the fog lamp on the target screen directly in front of the vehicle.
3. Turn ON the fog lamps. The top of the fog lamp beam image (4) on the target screen should be 102 mm (4 in) below the center of the fog lamp lens height.
4. Adjust the fog lamp as required using the adjusting screw (1) above the projector lens on the outside of the front bumper fascia.
5. Turn OFF the fog lamps.

Scheme 20

Parking and Turn Signal Lamp Bulb Replacement

Scheme 21

High Mount Stop Lamp Replacement

Scheme 22

Rear License Plate Lamp Replacement

Scheme 23

Tail Lamp Replacement

Scheme 24

Tail Lamp Bulb Replacement

Scheme 25

Rear Compartment Courtesy Lamp Replacement

Exterior Lamps

The exterior lighting system consist of the following lamps if equipped

1. Backup lamps
2. Front fog lamps
3. Hazard warning lamps
4. Headlamps
5. Park, tail and license lamps
6. Repeater lamps
7. Stop lamps
8. Turn signal lamps

Low Beam Headlamps

The body control module (BCM) monitors two signal circuits from the headlamp switch. With the headlamp switch in the PARK position, the headlamp switch park lamps ON signal circuit is grounded, indicating that the park lamps have been requested. When the headlamp switch is placed in the HEADLAMP position, both the headlamp switch park lamps ON signal circuit and the headlamp switch headlamps ON signal circuit are grounded. The BCM responds to the inputs by illuminating the park lamps and headlamps. When the low beam headlamps are requested, the BCM applies B+ to both low beam headlamp control circuits illuminating the low beam headlamps.

The BCM will also command the low beam headlamps ON during daylight conditions when the following conditions are met

1. Headlamp switch in the AUTO position
2. Windshield wipers ON
3. Vehicle in any gear but PARK - automatic transmission
4. Vehicle in motion - manual transmission

When the BCM commands the low beam headlamps ON, the operator will notice the interior backlighting for the instrument cluster and the various other switches dim to the level of brightness selected by the instrument panel dimmer switch.

High Beam Headlamps

When the low beam headlamps are ON and the turn signal/multifunction switch is placed in the high beam position, ground is applied to the BCM through the high beam signal circuit. The BCM responds to the high beam request by applying ground to the 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 left and right high beam fuses to the high beam control circuits illuminating the left and right high beam headlamps.

Daytime Running Lamps (DRL)

The daytime running lamps (DRL) will illuminate the right and left low beam headlamps continuously. The DRLs will operate when the following conditions are met

1. The ignition is in the RUN or CRANK position
2. The shift lever is out of the PARK position for vehicles equipped with automatic transmissions or the parking brake is released for vehicles with manual transmissions
3. The low and high beam headlamps are OFF

With the headlamp switch is in the off position the BCM will command the low beam headlamps ON. The low beam headlamps are the designated DRL's. Any function or condition that turns on the headlamps will cancel DRL operation.

Flash to Pass (FTP)

When the turn signal/multifunction switch is momentarily placed in the flash to pass (FTP) position, ground is applied from to the turn signal/multifunction switch. The turn signal/multifunction switch applies ground to the body control module (BCM) through the FTP switch signal circuit. The BCM then applies ground to the high beam relay control circuit. This energizes the high beam relay, closing the switch side contacts of the high beam relay, applying battery voltage to the left and right high beam fuses. Battery voltage is applied from the high beam fuses through the high beam control circuit to the high beam headlamp assemblies. This causes the high beam headlamps to illuminate at full brightness momentarily.

Front Fog Lamps

The front fog lamp relay 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 lamp fuse to the front fog lamp control circuit which illuminates the front fog lamps.

Hazard Warning Lamps

The hazard warning lamps may be activated in any power mode. The hazard warning switch signal circuit is momentarily grounded when the hazard warning switch is pressed. The body control module (BCM) responds to the hazard warning switch signal input by supplying battery voltage to all four turn signal lamps in an ON and OFF duty cycle. When the hazard warning switch is activated, the BCM sends a serial data message to the instrument cluster requesting both turn signal indicators to be cycled ON and OFF.

The instrument panel dimmer switch controls are used to increase and decrease the brightness of the interior backlighting components. When the instrument panel dimmer switch is placed in a desired brightness position, the body control module (BCM) receives a signal from the instrument panel dimmer switch and responds by applying a pulse width modulated (PWM) voltage to the hazard switch LED backlighting control circuit illuminating the LED to the desired level of brightness.

Park, Tail, and License Lamps

When the headlamp switch is placed in the HEAD or PARK position, ground is applied to the park lamp switch ON signal circuit to the body control module (BCM). The BCM responds by applying voltage to the park lamps, tail lamps, and license lamps control circuits illuminating the park, tail, and license lamps.

Stop Lamps

The brake pedal position (BPP) sensor is used to sense the action of the driver application of the brake pedal. The BPP 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-volt reference voltage to the BPP sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the left and right stop lamp control circuits as well as the center high mounted stop lamp (CHMSL) control circuit illuminating the left and right stop lamps and the CHMSL.

Turn Signal Lamps

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 positions. 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 responds to the turn signal switch input by applying a pulsating voltage to the front and rear turn signal lamps through there respective control circuits. When a turn signal request is received by the BCM, a serial data message is sent to the instrument cluster requesting the respective turn signal indicator be pulsed ON and OFF.

Backup Lamps

Automatic Transmission

With the engine ON and the transmission 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 control circuit illuminating the backup lamps. 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 lamps control circuit. The engine must be ON for the backup lamps to operate.

Manual Transmission

The engine control module (ECM) provides a signal circuit to the backup lamp switch which is permanently grounded. With the engine ON and the transmission in the reverse position, the backup lamp switch signal circuit is pulled low and the ECM responds by sending 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 control circuit illuminating the backup lamps. Once the driver moves the gear selector out of the reverse position, a message is sent by the ECM via serial data requesting the BCM to remove battery voltage from the backup lamps control circuit. The engine must be ON for the backup lamps to operate.

Battery Run Down Protection/Inadvertent Power

To provide battery run down protection, the exterior lamps will be deactivated automatically under certain conditions. The BCM monitors the state of the headlamp switch. If the park or headlamp switch is ON when the ignition switch is placed in either the CRANK or RUN position and then placed in the OFF position, the BCM initiates a 10 min timer. At the end of the 10 min, the BCM will turn off the control power output to the park lamp controls as well as the headlamp relay coils, deactivating the exterior lamps. This feature will be cancelled if any power mode other than OFF becomes active. The BCM will disable battery run down protection if any of the following conditions exist. The park or headlamp switch is placed in the ON to OFF position, and back to the ON position during battery run down protection. The BCM determined that the park or headlamp switch was not active when the ignition was turned OFF.

Interior Lamps

The interior lighting consist of two groups. This first group includes lamps that may not be dimmed.

1. Dome lamp/reading lamps
2. Rear compartment courtesy lamp

Dome Lamp

When any door is opened, the associated door jamb switch closes providing a door open input to the body control module (BCM). The BCM responds by applying battery positive voltage to the dome lamp control circuit illuminating the dome lamp. The dome lamp will turn OFF immediately if the ignition switch is turned to the ON position or approximately 20 seconds after all doors are closed. The dome lamp will normally turn OFF using the theater dimming feature when controlled by the BCM. If the operator inadvertently leaves any interior lamp ON, the BCM will turn all interior lamps OFF after 10 minutes has passed since any switch activation has been detected by the BCM.

Keyless Entry Interior Illumination

When the operator uses the keyless entry transmitter in order to unlock the doors, the BCM receives a door-unlock signal. The BCM must receive inputs from various systems that indicate that the ignition switch is OFF, the courtesy lamp switch is OFF, and all doors are closed before the BCM will activate the interior lamps. The courtesy lamps will remain ON for 20 seconds after the door is closed. The BCM will turn off the courtesy lamps OFF through the theater dimming feature. If the door locks are activated to the LOCK position, or if the ignition switch is turned to either the RUN or CRANK position, the courtesy lamps will turn OFF immediately.

Rear Compartment Courtesy Lamp

The BCM provides battery positive voltage to the rear compartment courtesy lamp. When the rear compartment is opened, the rear compartment latch opens providing a rear compartment open input to the BCM. The BCM responds by applying battery positive voltage to the rear compartment lamp control circuit illuminating the rear compartment lamp.

Reading Lamp

The inadvertent power supply voltage circuit from the BCM provides battery positive voltage the reading lamp. When the reading lamp switch is activated, the switch contacts close providing a path to ground and the reading lamp illuminates. If the operator inadvertently leaves a reading lamp ON, the BCM will turn all interior lamps OFF after 10 minutes has passed since any switch activation has been detected by the BCM.

Battery Rundown Protection/Inadvertent Power

The BCM inadvertent power supply voltage circuit provides battery positive voltage to all of the interior lamps. In the event that any of these lamps were to remain illuminated for a period of more than 10 minutes with the ignition switch in the OFF position, the BCM will deactivate the inadvertent power supply voltage circuit to prevent total battery discharge.

Interior Lamps Dimming

The second group includes lamps which may be dimmed.

1. Door lock switch - driver
2. Door lock switch - passenger
3. Hazard warning switch
4. Headlamp switch
5. HVAC control head assembly
6. Instrument cluster
7. Liftgate unlatch switch
8. Radio
9. Seat heating switch - driver
10. Seat heating switch - passenger
11. Transmission shift lever position indicator
12. Vehicle stability control switch

When the headlamp switch is placed in the PARK or HEAD position, the park lamp switch signal circuit provides an input to the body control module (BCM). The BCM responds by applying voltage to the park lamps as well as the dimming control circuits illuminating all components with interior backlighting. All LED and incandescent backlighting turns ON at the dimming level indicated by the instrument panel dimmer switch. The instrument panel dimmer switch is a potentiometer type switch used to accomplish dimming controls. The instrument panel dimmer switch contains a battery positive voltage reference circuit, a signal circuit, and a low reference circuit from the BCM. When the instrument panel dimmer switch is held in the decrease brightness position, the BCM receives a low voltage signal via the instrument panel dimmer switch signal circuit. The BCM responds by decreasing the brightness of all interior backlighting by decreasing the voltage supplied to the backlighting components via the dimming control circuits. When the instrument panel dimmer switch is held in the increase brightness position, the BCM receives a high voltage signal via the instrument panel dimmer switch signal circuit. The BCM responds by increasing the brightness of all interior backlighting by increasing the voltage supplied to the backlighting components via the dimming control circuits.