Monday, April 1, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 214


B396A



DTC B396A



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 B396A 01



- Liftgate Motor Control Circuit Short to Battery



DTC B396A 02



- Liftgate Motor Control Circuit Short to Ground



DTC B396A 04



- Liftgate Motor Control Circuit Open



Diagnostic Fault Information



Circuit/System Description



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 (LGM) 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 LGM prior to activation for a high or low condition and during motor operation for any irregular current flow



conditions.



Conditions for Running the DTC

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