Voltage to the rear liftgate release system is available
at all times. The voltage is available through the CIG LTR fuse 13
and CKT 640 (ORN). This key-operated liftgate lock/unlock release
switch serves 2 purposes. The switch locks and unlocks all of the power
locks, including the liftgate rear door lock motor. When an unlock signal
is sent, the liftgate lock/unlock relay moves to the UNLOCK position. The
relay contacts close, which completes the circuit through the liftgate lock/unlock
relay to the rear liftgate release motor. The rear liftgate lock/unlock
relay must be in the UNLOCK position in order for the liftgate lock/unlock
release switch to function.
The electrical circuit completes under the following conditions:
| • | The liftgate lock/unlock relay is in the UNLOCK position |
| • | The liftgate lock/unlock release switch button is depressed |
The circuit completes from the liftgate lock/unlock release switch through
CKT 1305 (PPL) to the liftgate lock/unlock relay and through the relay's
contacts to the rear liftgate release motor. The rear liftgate release motor
receives ground through CKT 1450 (BLK) to G403.
Unlock the door lock system with any of the following components:
| • | The liftgate lock/unlock release switch (mechanical key) |
| • | The LH power door lock switch |
| • | The RH power door lock switch |
Once the door lock system is unlocked, perform the following actions
simultaneously:
| • | Press the liftgate release switch in order to electronically open
the liftgate |
| • | Pull the handle in order to release the secondary latch |
