Trouble Diagnoses Symptom Chart
Make sure other systems using the signal of the following systems operate normally.
TROUBLE DIAGNOSES SYMPTOM CHART
| Symptom | Diagnoses/Service procedure |
|---|---|
| Rear window defogger and door mirror defoggers do not operate. (With heated mirrors) | 1. BCM POWER SUPPLY AND GROUND CIRCUIT CHECK |
| 2. IPDM E/R AUTO ACTIVE TEST check | |
| 3. REAR WINDOW DEFOGGER SWITCH CIRCUIT CHECK | |
| 4. Replace IPDM E/R. See REMOVAL AND INSTALLATION OF IPDM E/R . | |
| Rear window defogger does not operate. (Without heated mirrors) | 1. BCM POWER SUPPLY AND GROUND CIRCUIT CHECK |
| 2. IPDM E/R AUTO ACTIVE TEST check | |
| 3. REAR WINDOW DEFOGGER SWITCH CIRCUIT CHECK | |
| 4. REAR WINDOW DEFOGGER CIRCUIT CHECK | |
| 5. FILAMENT CHECK | |
| 6. Replace IPDM E/R. See REMOVAL AND INSTALLATION OF IPDM E/R . | |
| Rear window defogger does not operate but both door mirror defoggers operate. (With heated mirrors) | 1. REAR WINDOW DEFOGGER CIRCUIT CHECK |
| 2. FILAMENT CHECK | |
| Door mirror defoggers do not operate but rear window defogger operates. (With heated mirrors) | 1. DOOR MIRROR DEFOGGER CIRCUIT CHECK |
| Rear window defogger switch does not light, but rear window defogger operates. | 1. Replace FRONT AIR CONTROL |