2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 301
Circuit/System Description
The liftgate module (LGM) receives an input from the liftglass ajar switch. The ajar switch is normally open when the liftglass is fully closed.
When the liftglass is opened, the ajar switch contact closes providing a path to ground. The driver information center (DIC) illuminates the Rear
Access Open message when the liftglass is open.
Conditions for Running the DTC
System voltage to the liftgate control module must be 9-16 volts.
Conditions for Setting the DTC
B396F 06
The LGM detects a short to ground or an open/high resistance in the liftglass ajar signal circuit.
B396F 0B
The LGM detects a short to voltage in the liftglass ajar signal circuit.
Action Taken When the DTC Sets
* When a short to ground condition is present, the Rear Access Open indicator will be continuously illuminated.
* When an open or short to voltage condition is present, the Rear Access Open indicator will not illuminate when the liftglass is open or ajar.
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
Release Systems Schematics (See: Body and Frame/Locks/Diagrams/Electrical Diagrams/Release Systems Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Door Ajar Indicator Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Door/Trunk Ajar
Indicator/Lamp/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, observe the scan tool Liftgate Ajar Switch parameters while opening and closing the liftglass. The parameter should change between
Active and Inactive.
Circuit/System Testing
