2010 Cadillac Truck SRX FWD V6-3.0L Page 692

2010 Cadillac Truck SRX FWD V6-3.0L Page 692

* 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 B3797 02

- All Door Dead Lock Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

When the body control module (BCM) receives a command to activate the door dead locks, the BCM will apply voltage to the DOOR LK SEC pcb

relay. This will energize the relay closing the contacts and enable the BCM to supply voltage to the dead locks in each of the doors.

Conditions for Running the DTC

The system voltage must be between 9-16 V.

Conditions for Setting the DTC

The BCM detects a short to ground in the DOOR LK SEC pcb relay control circuit.

Action Taken When the DTC Sets

The dead locks will be inoperative

Conditions for Clearing the DTC

* This DTC will change from current to history when the fault is no longer present.

* A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.

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/Connector End Views By Name)

Description and Operation

Power Door Locks Description and Operation (See: Body and Frame/Locks/Power Locks/Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Ignition ON, command the Door Deadlock Lock/Unlock to LOCK and UNLOCK with a scan tool. Listen or feel for the operation of the deadlock

actuators performing the LOCK and UNLOCK functions.

Circuit/System Testing

1. Ignition OFF, disconnect the X2 harness connector at the rear fuse block