Colorado 4WD V8-5.3L (2010)
5. With a scan tool, command the door locks to LOCK and UNLOCK.
‹› If the door locks do not LOCK, test for a short to voltage or open/high resistance in the Driver Door Lock/ Window Switch LOCK signal
circuit.
‹› If the door locks do not UNLOCK, test for a short to voltage or open/high resistance in the Driver Door Lock/ Window Switch UNLOCK
signal circuit.
6. If all circuits test normal, replace the BCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Tests and Associated Procedures/Verification Tests and Procedures) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming
