Tuesday, May 14, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 600


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



B2652



DTC B2652



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 B2652 00



- Passenger Compartment Dimming 3 Circuit



Diagnostic Fault Information



Circuit/System Description



The body control module (BCM) applies a 12 V reference voltage through the headlamp and panel dimmer switch 12 V reference circuit to the