Liftgate Window Glass: Testing and Inspection

DIAGNOSIS AND TESTING - LIFTGATE FLIP-UP GLASS POWER RELEASE SYSTEM
Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

1. Check the fused B(+) fuse in the Junction Block (JB). If OK, go to Step 2. If not OK, repair the shorted circuit or component as required and replace the faulty fuse.
2. Check for battery voltage at the fused B(+) fuse in the JB. If OK, go to Step 3. If not OK, repair the open fused B(+) circuit to the Power Distribution Center (PDC) as required.
3. Disconnect the liftgate wire harness connector for the liftgate lock motor and flip-up glass limit switch from the motor and switch connector receptacle. Check for battery voltage at the fused B(+) circuit cavity of the liftgate wire harness connector for the liftgate lock motor and flip-up glass limit switch. If OK, go to Step 4. If not OK, repair the open fused B(+) circuit between the liftgate lock motor and flip-up glass limit switch and the JB as required.
4. Check for continuity between the two liftgate flip-up glass limit switch terminals. There should be continuity with the liftgate latch unlocked, and no continuity with the latch locked. If OK, go to Step 5. If not OK, replace the faulty liftgate latch actuator (bramplate) unit.
5. Disconnect the liftgate wire harness connector for the liftgate flip-up glass release switch from the switch connector receptacle. With the liftgate latch unlocked, check for battery voltage at the liftgate flip-up glass limit switch output circuit cavity of the liftgate wire harness connector for the release switch. If OK, go to Step 6. If not OK, repair the open lift- gate flip-up glass limit switch output circuit between the release switch and the limit switch as required.
6. Check for continuity between the two terminals of the liftgate flip-up glass release switch. There should be no continuity. Depress the switch, there should now be continuity. If OK, go to Step 7. If not OK, replace the faulty liftgate flip-up glass release switch.
7. Disconnect the liftgate wire harness connector for the liftgate flip-up glass latch motor from the motor connector receptacle. Check for continuity between the ground circuit cavity of the liftgate wire harness connector for the latch motor and a good ground. There should be continuity. If OK, go to Step 8. If not OK, repair the open ground circuit to ground as required.
8. With the liftgate latch unlocked and the flip-up glass release switch depressed, check for battery voltage at the liftgate flip-up glass release switch output circuit cavity of the liftgate wire harness connector for the latch motor. If OK, replace the faulty liftgate flip up glass latch unit If not OK, repair the open liftgate flip up glass release switch output circuit between the latch motor and the release switch as required