2010 Cadillac CTS Sedan AWD V6-3.6L Page 644
* Seat Lumbar Sub System Replacement (without AHS) (See: Body and Frame/Seats/Service and Repair/Seat Lumbar Sub System
Replacement (Without AHS))Seat Lumbar Sub System Replacement (with AHS) (See: Body and Frame/Seats/Service and Repair/Seat
Lumbar Sub System Replacement (With AHS))
* Front Seat Recliner Actuator Motor Replacement (See: Body and Frame/Seats/Power Seat Motor/Service and Repair/Front Seat Recliner
Actuator Motor Replacement)
* Steering Column Tilt Wheel Actuator Motor Replacement (See: Steering and Suspension/Steering/Steering Column/Tilt Wheel
Motor/Service and Repair)
* Steering Column Telescope Actuator Motor Replacement (See: Steering and Suspension/Steering/Steering Column/Telescoping Wheel
Motor/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for MSM replacement, setup, and programming
B3922
DTC B3922
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 B3922 00
- Front Wiper Function Select Circuit
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) controls the wiper motor based on input from the windshield wiper washer switch. The BCM monitors the wiper
washer switch through three separate signal circuits and a ground circuit. The windshield wiper switch high signal circuit is used to determine high
speed wiper operation, the windshield wiper switch low signal is used to determine low speed, intermittent, and mist operation through the use of a
resistor ladder, and windshield washer switch signal circuit is used to determine washer operation.
Conditions for Running the DTC
The ignition switch is in the ON position.
Conditions for Setting the DTC
The BCM detects a short to ground on the windshield wiper switch low signal circuit.
Action Taken When the DTC Sets
