2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2138

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2138

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

BCM.

3. Test for B+ between the B+ circuit terminal 1 and the signal circuit terminal 3.

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

the BCM.

4. Ignition OFF, disconnect the X1 harness connector at the BCM.

5. Test for infinite resistance between the signal circuit terminal 3 and ground.

瀚慖f less than the specified value, test the signal circuit for a short to ground.

6. If all circuits test normal, test or replace the steering wheel control switch - left.

Component Testing

Steering Wheel Control Switch - Left

1. Disconnect the harness connector at the steering wheel controls switch - left.

2. Cruise control switch ON, measure the resistance between terminal 1 and terminal 3 while individually activating and holding each cruise

control function switch and compare the resistance reading to the values in the table below.

瀚慖f not within the specified resistance range, replace the steering wheel controls switch - left.

Repair Instructions

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

* Steering Wheel Control Switch Assembly Replacement (See: Accessories and Optional Equipment/Sensors and Switches - Accessories and

Optional Equipment/Steering Mounted Controls Assembly/Service and Repair)

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

P0568

DTC P0564, P0567, or P0568

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 Descriptors

DTC P0564

- Cruise Control Multifunction Switch Circuit

DTC P0567

- Cruise Control Resume Switch Circuit

DTC P0568

- Cruise Control Set Switch Circuit

Diagnostic Fault Information