Trouble Diagnosis Symptom Chart
Make sure other systems using the signal of the following systems operate normally.
| Symptom | Diagnoses / Service procedure | Refer to |
|---|---|---|
| Rear window defogger and door mirror defoggers do not operate. (With heated mirrors) | 1. BCM power supply and ground circuit check | BCM POWER SUPPLY AND GROUND CIRCUIT INSPECTION |
| 2. IPDM E/R auto active test check | CAN DIAG SUPPORT MNTR | |
| 3. Rear window defogger switch circuit check | REAR WINDOW DEFOGGER SWITCH CIRCUIT INSPECTION | |
| 4. Replace IPDM E/R | INSPECTION WITH CONSULT (SELF-DIAGNOSIS) | |
| Rear window defogger does not operate. (Without heated mirrors) | 1. BCM power supply and ground circuit check | BCM POWER SUPPLY AND GROUND CIRCUIT INSPECTION |
| 2. IPDM E/R auto active test check | CAN DIAG SUPPORT MNTR | |
| 3. Rear window defogger switch circuit check | REAR WINDOW DEFOGGER SWITCH CIRCUIT INSPECTION | |
| 4. Rear window defogger circuit check | REAR WINDOW DEFOGGER CIRCUIT INSPECTION | |
| 5. Filament check | FILAMENT CHECK | |
| 6. Replace IPDM E/R | INSPECTION WITH CONSULT (SELF-DIAGNOSIS) | |
| Rear window defogger does not operate but both door mirror defoggers operate. (With heated mirrors) | 1. Rear window defogger circuit check | REAR WINDOW DEFOGGER CIRCUIT INSPECTION |
| 2. Filament check | FILAMENT CHECK | |
| Door mirror defoggers do not operate but rear window defogger operates. (With heated mirrors) | 1. Door mirror defogger circuit check | DOOR MIRROR DEFOGGER CIRCUIT INSPECTION |
| Rear window defogger switch does not light, but rear window defogger operates. | 1. Replace front air control | CONTROL UNIT |