2010 Cadillac Truck SRX FWD V6-3.0L Page 306

2010 Cadillac Truck SRX FWD V6-3.0L Page 306

4. Verify the scan tool LED Backlight Dimming Command is less than 5 percent.

瀚慖f greater than the specified range, test the signal circuit terminal 12 for a short to voltage. If the circuit tests normal, replace the K9 Body

Control Module.

5. Install a 3 A fused jumper wire between the signal circuit terminal 12 and the 5 V reference circuit terminal 5. Verify the scan tool LED

Backlight Dimming Command is greater than 95 percent.

瀚慖f less than the specified range, test the signal circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the

K9 Body Control Module.

6. If all circuits test normal, test or replace the S30 Headlamp Switch.

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, setup, and programming

B260B

DTC B260B or B260C

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC B260B 01

- Left Daytime Running Lamp Relay Control Circuit Short to Battery

DTC B260B 02

- Left Daytime Running Lamp Relay Control Circuit Short to Ground

DTC B260B 04

- Left Daytime Running Lamp Relay Control Circuit Open

DTC B260C 01

- Right Daytime Running Lamp Relay Control Circuit Short to Battery

DTC B260C 02

- Right Daytime Running Lamp Relay Control Circuit Short to Ground

DTC B260C 04

- Right Daytime Running Lamp Relay Control Circuit Open

Diagnostic Fault Information

Circuit/System Description