Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Horn. Lexus Is250, Is220D. Gse20 Ale20
Horn System -- Problem Symptoms Table |
| Symptom | Suspected area | See page |
| Horn does not sound | 1. HORN fuse | - |
| 2. Horn relay | Click here | |
| 3. Steering pad switch | Click here | |
| 4. Spiral cable | Click here | |
| 5. Windshield wiper switch assembly | Click here | |
| 6. Power source control ECU | - | |
| 7. Multiplex communication line | Click here | |
| 8. Wire harness | - | |
| Horn blow all the time | 1. Horn relay | Click here |
| 2. Steering pad switch | Click here | |
| 3. Wire harness | - | |
| Low pitched horn operates but high pitched horn does not operate | 1. High pitched horn | Click here |
| 2. Wire harness | - | |
| high pitched horn operates but low pitched horn does not operate | 1. Low pitched horn | Click here |
| 2. Wire harness | - |