Liftgate Release Motor Testing

Check all connections and terminals for damage or corrosion. Disconnect liftgate release motor connector. Connect a DVOM between liftgate release motor harness connector terminals. Activate liftgate release switch. Check for voltage at motor harness connector terminals. If battery voltage is present, all circuits and switch are okay, replace liftgate release motor. If battery voltage is not present, check circuits and switch for opens or shorts to ground.
Operate motor by hand. If output shaft does not turn, replace liftgate release motor. If output shaft turns, check linkage for damage or other foreign objects. Check for continuity through motor. Repair or replace as necessary.