Liftgate Motor Power Open/Close Malfunction
Table of contents
B396A GMC Possible Causes
- Faulty Liftgate Motor
- Liftgate Motor harness is open or shorted
- Liftgate Motor circuit poor electrical connection
- Faulty Liftgate Control Module
How do I fix code B396A GMC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B396A GMC code
The cost of diagnosing the B396A GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B396A GMC 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 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. The Diagnostic Trouble Code (DTC) sets when the Liftgate Control Module detects a short to battery in the Liftgate Motor control circuits.