Window Defogger System -- Problem Symptoms Table |
- HINT:
- Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
| Symptom | Suspected area | See page |
| Rear window defogger switch is turned ON but does not operate (indicator ON) | 1. DEF fuse | Toyota Fortuner RM000001ODO003X.html |
| 2. Defogger relay | Toyota Fortuner RM000001L85005X.html | |
| 3. Rear window defogger wire | Toyota Fortuner RM000001L64004X.html | |
| 4. Wire harness | - | |
| Rear window defogger switch is turned ON but does not operate (indicator OFF) | 1. DEF fuse | Toyota Fortuner RM000001ODO003X.html |
| 2. ECU-IG &GAUGE fuse | Toyota Fortuner RM000001ODO003X.html | |
| 3. Defogger relay | Toyota Fortuner RM000001L85005X.html | |
| 4. Rear window defogger switch | Toyota Fortuner RM000001OES003X.html | |
| 5. Rear window defogger wire | Toyota Fortuner RM000001L64004X.html | |
| 6. Wire harness | - |