Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

The liftgate module supplies power and ground to operate the liftgate motor. The direction of the motor is determined by which of the control circuits is supplied power and which is grounded. The liftgate module varies the current flow through the motor ground circuit to control the speed of the motor as necessary.

A liftgate open or close function is attempted.

The following failures to either the open control or the close control circuit will set the DTC:

The liftgate operation is suspended for the ignition cycle.

Schematic Reference

Body Rear End Schematics

Connector End View Reference

Body Rear End Connector End Views

Electrical Information Reference

Scan Tool Reference

1. Attempt to open the liftgate. The liftgate should smoothly open.
2. Attempt to close the liftgate. The liftgate should smoothly close.

1. Ignition OFF, disconnect the liftgate module harness connector containing the liftgate open/close control circuit.
2. With a DMM, measure for approximately 1 ohm of resistance between the liftgate open control circuit and the liftgate close control circuit.

⇒	If resistance does not equal 1 ohm, test both circuits for a short to voltage, open or high resistance. If the circuit/connections test normal, replace the liftgate motor assembly.

3. Test or replace the liftgate module.

Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.