Tech Tips
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 | DEF fuse | |
| DEF relay | ||
| Rear window defogger wire | ||
| Wire harness | ||
| Rear window defogger switch is turned ON but does not operate | DEF fuse | |
| ECU-IG & GAUGE fuse | ||
| DEF relay | ||
| Rear window defogger switch | ||
| Rear window defogger wire | ||
| Wire harness |