2010 Cadillac Truck SRX AWD V6-3.0L Page 359
The liftgate motor is a bi-directional motor and open or close operation is the result of the direction of the motor rotation. The liftgate control
module controls the liftgate motor through the control circuits by supplying power and ground in the appropriate polarity. The motor control
circuits are monitored by the liftgate control module prior to activation for a high or low condition and during motor operation for any irregular
current flow conditions.
Conditions for Running the DTC
* The system voltage is 9-16 V.
* Power open or close function is initiated.
Conditions for Setting the DTC
B396A 01
The liftgate control module detects a short to voltage in a liftgate motor control circuit.
B396A 02
The liftgate control module detects a short to ground in a liftgate motor control circuit.
B396A 04
The liftgate control module detects an open/high resistance in a liftgate motor control circuit or the liftgate control module B+ circuit. A short to
ground in the liftgate control module B+ circuit.
Action Taken When the DTC Sets
The power liftgate may be inoperative in the power mode and in the manual mode.
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.
Diagnostic Aids
* If the liftgate will not release from the closed position, refer to Opening the Liftgate Without Electrical Power (See: Body and Frame/Doors,
Hood and Trunk/Trunk / Liftgate/Service and Repair/Procedures) for the appropriate procedure
* Whenever the liftgate control module loses power or is disconnected, the ignition must be cycled OFF then ON in order to reactivate the
liftgate control module.
* DTC B396A 01 may set as current or history when the liftgate control module detects erratic voltage levels in the electrical system and does
not affect the operation of the power liftgate. If this DTC is set and the liftgate functions normally, clear the DTC
Reference Information
Schematic Reference
Liftgate Schematics (See: Body and Frame/Locks/Diagrams/Electrical Diagrams/Liftgate Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Liftgate Description and Operation (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Description and Operation/Liftgate)
Electrical Information Reference
* 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)
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
