Pinpoint Tests AJ: The Power Liftgate Off Message Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test AJ: The POWER LIFTGATE OFF Message Is Inoperative

Normal Operation

The power liftgate on/off status is sent from the Liftgate/Trunk Module (LTM) to the Instrument Cluster (IC) over the Medium Speed Controller Area Network (MS-CAN) communication bus lines. When the RESET button is pressed, the IC sends a query to the LTM, requesting a system status. The LTM responds to the IC with the status of the system, either on or off. If the return status message is missing or corrupted, the IC does not display the brackets around either the ON or OFF selection.

This pinpoint test is intended to diagnose the following:

- Power liftgate system concern
- Communication network



PINPOINT TEST AJ: THE POWER LIFTGATE OFF MESSAGE IS INOPERATIVE

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AJ1 CHECK THE POWER LIFTGATE OPERATION


- Operate the power liftgate and check for correct operation when the feature is selected on and off. Refer to the Owner's Literature for additional information on selecting the parking aid system on or off.
- Does the power liftgate operate correctly when the feature is selected on then off?

Yes
GO to AJ2.

No
REFER to Doors, Hood and Trunk.

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AJ2 CHECK THE MESSAGE CENTER ON/OFF DISPLAY


- Press the SETUP button until POWER LIFTGATE ON OFF is displayed.
- Does the ON or OFF have the [ ] brackets around it indicating the desired selection?

Yes
If the brackets remain, the system is operating normally at this time. The problem may have been caused by a momentary loss of communication with the LTM.

No
PRESS the RESET button to allow the IC to query the LTM again.

If the display is still incorrect, REFER to Information Bus to diagnose no communication with the LTM.

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