Lexus IS250 IS220d GSE20 ALE20 - WIPER AND WASHER
WIPER AND WASHER SYSTEM - PROBLEM SYMPTOMS TABLE
- HINT:
Use the table below to help determine the cause of the problem symptom. The potential cases 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 order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to the system before inspecting the suspected areas below.
| Symptom | Suspected area | See page |
| Wiper and washer systems do not operate at all | 1. Wiper and washer switch circuit | |
| 2. Main body ECU LH (Cowl side J/B LH) | ||
| Wiper system does not operate at all | 1. WIP, AIM, D-J/B, R/B, ALT fuse | - |
| 2. Wiper motor power source circuit | ||
| 3. Wiper and washer switch circuit | ||
| 4. Front wiper motor circuit | ||
| 5. Main body ECU LH (Cowl side J/B LH) | ||
| Wiper system does not operate (LO, INT) | 1. Wiper and washer switch circuit | |
| 2. Front wiper motor circuit | ||
| 3. Main body ECU LH (Cowl side J/B LH) | ||
| Wiper system does not operate (HI) | 1. Wiper switch (Hi-speed) circuit | |
| 2. Front wiper motor circuit | ||
| 3. Main body ECU LH (Cowl side J/B LH) | ||
| Wiper system does not stop | 1. Wiper switch (Hi-speed) circuit | |
| 2. Front wiper motor circuit | ||
| 3. Main body ECU LH (Cowl side J/B LH) | ||
| Washer system does not operate | 1. WASHER, R/B, ALT fuse | - |
| 2. Wiper and washer switch circuit | ||
| 3. Washer motor circuit | ||
| 4. Engine room No. 2 J/B (Front controller) | ||
| 5. Main body ECU LH (Cowl side J/B LH) |
| Symptom | Suspected area | See page |
| Auto wiper system does not operate (manual operation is normal) | 1. Rain sensor tape (*) | - |
| 2. P-IG, AM1, D-J/B, ALT fuse | - | |
| 3. Rain sensor circuit | ||
| 4. Rain sensor | ||
| 5. Main body ECU LH (Cowl side J/B LH) |
| Symptom | Suspected area | See page |
| Headlight cleaner system does not operate at all | 1. H-IG, AM1, D-J/B, ALT fuse | - |
| 2. Headlight cleaner switch circuit | ||
| 3. Headlight cleaner motor and relay circuit | ||
| 4. Main body ECU LH (Cowl side J/B LH) | ||
| 5. Engine room No. 2 J/B (Front controller) | ||
| 6. Headlight cleaner control relay |
| Symptom | Suspected area | See page |
| Washer fluid level warning system does not operate | 1. Washer level warning switch | |
| 2. Wire Harness or connector | - | |
| 3. Engine room No. 2 J/B (Front controller) |