2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 723
Diagnostic Fault Information
Circuit/System Description
The LOCK/UNLOCK relay is controlled by the body control module (BCM) by providing voltage to one side of the relay or providing a ground to
the other side of the relay. During lock or unlock operation, battery voltage will be supplied to the lock actuators through the energized side of the
relay and grounded through the de-energized side of the relay.
Conditions for Running the DTC
The system voltage must be between 9-16 volts.
Conditions for Setting the DTC
B3130 00
The BCM detects a fault on the REAR DOOR LOCK/UNLOCK relay control circuit while commanding the rear doors to unlock.
B3135 00
The BCM detects a fault on the REAR DOOR LOCK/UNLOCK relay control circuit while commanding the rear doors to lock.
Action Taken When the DTC Sets
The rear power door locks will malfunction.
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 become 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
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)
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Saturday, November 16, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 723
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