One Mirror Inoperative
- If inoperative mirror is on driver's side, go to next step. If inoperative mirror is on passenger's side, check operation of power door lock on passenger's side. If power door lock is okay, go to next step. If power door lock is inoperative, use scan tool to repair PCI data bus between door modules. See BODY CONTROL COMPUTER TESTS - Grand Cherokee article.
- Disconnect negative battery cable. Remove door trim panel. See FRONT DOOR TRIM PANEL under REMOVAL & INSTALLATION. Disconnect mirror wiring connector. Using 2 jumper wires, test mirror as indicated in POWER MIRROR TEST table. See Fig 1 . If mirror does not operate as specified, replace mirror. If mirror is okay, go to next step.
- Check all circuits between door module and power mirror for opens or shorts. See WIRING DIAGRAMS . Repair opens or shorts as necessary. If all circuits are okay, replace door module.
POWER MIRROR TEST
| Connect 12 Volts To Terminal No. | Connect Ground To Terminal No. | Mirror Reaction |
|---|---|---|
| Driver's Side | ||
| 6 | 12 | Left |
| 12 | 6 | Right |
| 11 | 12 | Up |
| 12 | 11 | Down |
| Passenger's Side | ||
| 1 | 7 | Left |
| 7 | 1 | Right |
| 8 | 7 | Up |
| 7 | 8 | Down |