2010 Cadillac CTS Sedan AWD V6-3.6L Page 407
Handle Replacement (Without ATH) (See: Body and Frame/Doors, Hood and Trunk/Doors/Rear Door/Rear Door Handle/Rear Door
Exterior Handle/Service and Repair/Rear Side Door Outside Handle Replacement (Without ATH))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for keyless entry control module replacement,
setup, and programming
B1535
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
The keyless entry control module detects a short to ground in the left rear or right rear door handle signal circuit.
Action Taken When the DTC Sets
The affected door will not unlock when using the exterior rear door handle.
Conditions for Clearing the DTC
* The DTC will be current for as long as the fault is present.
* When the fault is no longer present, the DTC will be a history DTC.
* A history DTC will clear after 50 ignition cycles.
Reference Information
Schematic Reference
Door Lock/Indicator Schematics (See: Body and Frame/Locks/Diagrams/Electrical Diagrams/Door Lock/Indicator Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
