2010 Cadillac Truck SRX FWD V6-3.0L Page 590

2010 Cadillac Truck SRX FWD V6-3.0L Page 590

The BCM does not attempt to illuminate the accent lighting.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.

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

Reference Information

Schematic Reference

Interior Lights Dimming Schematics (See: Diagrams/Electrical Diagrams/Lighting and Horns/System Diagram/Interior Lights Dimming

Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Interior Lighting Systems Description and Operation (See: Lighting and Horns/Description and Operation/Interior Lighting Systems)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Ignition ON, command the Accent Lighting ON and OFF with a scan tool. The accent lighting should turn ON and OFF when changing between

the commanded states.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connectors at the appropriate E1 accent light.

2. Test for less than 5 ohm between the ground circuit terminal and ground.

瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition OFF, doors closed, wait 20 seconds before testing for less than 0.3 V between the control circuit terminal and ground.

瀚慖f greater than the specified value, test the circuit for a short to voltage. If the circuits test normal replace the K9 BCM.

4. Ignition ON, doors open, test for greater than 11 V between the control circuit terminal and ground.

瀚慖f less than the specified value, test the circuit for a short to ground or an open/high resistance. If the circuits test normal replace the K9

BCM.

5. If all circuits test normal, test or replace the E1 accent light.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Refer to the appropriate replacement procedure for the lighting component that requires replacement.

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, programming and setup

B2657

DTC B2657

Diagnostic Instructions