Body - Power Liftgate Won't Power Open Or Close
NUMBER: 08-005-13GROUP: Electrical
DATE: February 01, 2013
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF
THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 13.03 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: Power Liftgate May Not Power Open Or Close
OVERVIEW:
This bulletin involves reprogramming the Power Liftgate Module with new software.
MODELS:
2011 - 2012 (WK) Grand Cherokee
2011 - 2012 (WD) Durango
NOTE:
This bulletin applies to vehicles equipped with Power Lift gate (sales code JRC) between March 1, 2010 (MDH 0301XX) and March 1, 2012 (MDH 0301XX).
SYMPTOM/CONDITION:
The customer may experience the Power Lift Gate not opening and closing under power.
Upon further investigation the Technician may find that B1882 Power Liftgate Position Sensor 1 Circuit set.
Updating the software will correct the conditions listed above.
DIAGNOSIS:
If the customer describes the symptom/condition or if the technician finds the DTC, perform the Repair Procedure.
REPAIR PROCEDURE:
NOTE:
Install a battery charger to ensure battery voltage does not drop below 13.2 volts. Do not allow the charging voltage to climb above 13.5 volts during the flash process.
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
1. Use the wiTECH Diagnostic Application to reflash the Power Liftgate Module. Help using the wiTECH Diagnostic Application for flashing the Power Liftgate Module is made available through the wiTECH Diagnostic Application. For instructions select the "HELP" tab on upper portion of the wiTECH window, then "HELP CONTENTS." This will open the Welcome to wiTECH Help screen where help topics can be selected.
2. After the flash has been performed turn ignition switch off.
NOTE:
This will allow the active codes to become stored.
3. Turn ignition switch on.
4. Clear any DTC's that may have been set in all modules due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow the tech to clear them.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.