2010 Cadillac CTS Sedan AWD V6-3.6L Page 405
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
B1534
DTC B1534 or B1535
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 B1534 02
- Left Rear Door Handle Switch Circuit
DTC B1535 02
- Right Rear Door Handle Switch Circuit
Diagnostic Fault Information
Circuit/System Description
The left and right rear door handle switch signal circuit provides inputs to the keyless entry control module when the appropriate rear exterior door
handle switch is activated. This input allows the keyless entry control module to detect a door open request. When the left or right rear door handle
is activated, the switch closes and the voltage signal from the keyless entry control module is pulled to ground, the keyless entry control module
will then send a command to the appropriate door module to unlock and unlatch the door.
Conditions for Running the DTC
The system voltage is 9-16 V.
Conditions for Setting the DTC
