Problem Symptoms Table
WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
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.
Window defogger system
PROBLEM SYMPTOM CHART
| Symptom | Suspected area | See |
|---|---|---|
| Rear window defogger system does not operate | 1. DEFOG fuse | - |
| 2. DEFOG relay | - | |
| 3. Rear window defogger wire | REPAIR | |
| 4. Wire harness | REAR WINDOW DEFOGGER SYSTEM DOES NOT OPERATE | |
| 5. Luggage room junction block ECU power source circuit | LUGGAGE ROOM J/B ECU POWER SOURCE CIRCUIT | |
| 6. A/C amplifier | - |