2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 670
* All cluster/backlighting defaults full bright
* Steering wheel cluster/backlighting dimming controls inoperative
* Front fog lamps are inoperative
* Rear fog lamps are inoperative
Conditions for Clearing the DTC
* The DTC will be current for as long as the fault is present.
* When the fault is no longer present, the DTC will be a history DTC.
* A history DTC will clear after 40 ignition cycles.
Reference Information
Schematic Reference
Fog Lights Schematics (See: Diagrams/Electrical Diagrams/Lighting and Horns/System Diagram/Fog Lights Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Exterior Lighting Systems Description and Operation (See: Lighting and Horns/Description and Operation/Exterior 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, observe the scan tool Rear Fog Lamps Switch parameter. The parameter should change between Active and Inactive each time the rear
fog lamp switch is pressed.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the S30 headlamp switch.
2. Ignition OFF, test for 0.4k ohm to 1 ohm between the signal circuit terminal 12 and ground.
瀚慖f greater than the specified value, test the low reference circuit for an short to voltage or an open/high resistance. If the circuit tests
normal, replace the K9 BCM.
瀚慖f less than the specified range, test the signal circuit for a short to ground. If the circuit tests normal, replace the K9 BCM.
3. Test for greater than 10 V between the 12 V reference circuit terminal 1 and ground.
瀚慖f less than the specified range, test the 12 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the K9 BCM.
4. If all circuits test normal, replace the K9 BCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Headlamp Switch Replacement (See: Lighting and Horns/Headlamp/Headlamp Switch/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning)for BCM replacement, programming and setup
