2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 736
System/Pedal Positioning Motor/Service and Repair/Brake and Accelerator Pedal Adjuster Actuator Motor Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for seat memory control module replacement, setup,
and programming
B3930
DTC B3930
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 B3930 01
- Child Security Lock Motors Circuit Short to Battery
DTC B3930 02
- Child Security Lock Motors Circuit Short to Ground
DTC B3930 04
- Child Security Lock Motors Circuit Open
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) controls the child security lock relay when it receives a command to lockout the rear doors. The relay will apply
voltage to both child security circuits at the rear door latches to disable the interior door handles.
Conditions for Running the DTC
The system voltage is 9-16 V.
Conditions for Setting the DTC
B3930 01
The BCM detects a short to voltage on the CHILD SECURITY PCB relay control circuit.
B3930 02
The BCM detects a short to ground on the CHILD SECURITY PCB relay control circuit
B3930 04
The BCM detects an open/high resistance on the CHILD SECURITY PCB relay control circuit or an open/high resistance in the rear fuse block
ground circuit.
Action Taken When the DTC Sets
B3930 01
The interior rear door handles will always be inoperative.
B3930 02 or B3930 04
The interior rear door handles will continue to function when the child security lockout has been commanded and the BCM will command the
lockout indicator to flash ON and OFF for 30 seconds to indicate a fault in the system
