Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Park Assist Monitoring. Lexus Gs430, Gs300. Uzs190 Grs190
Clearance Sonar 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 |
| System does not operate at all (self-check function does not operate) | Clearance warning ECU power source circuit | Click here |
| Clearance sonar main switch circuit | Click here | |
| Replace clearance warning ECU | - | |
| Ultrasonic sensor No. 3 does not operate (self-check function operates normally) | Front left sensor (ultrasonic sensor No. 3) malfunction | Click here |
| Front right sensor (ultrasonic sensor No. 3) malfunction | Click here | |
| Front left center sensor (ultrasonic sensor No. 3) malfunction | Click here | |
| Front right center sensor (ultrasonic sensor No. 3) malfunction | Click here | |
| Replace clearance warning ECU | - | |
| Cannot enter steering sensing mode | Steering angle mid-point learning operation (perform again) | Click here |
| Ultrasonic sensors (malfunction may be present) | Click here | |
| Steering sensor malfunction | Click here | |
| Variable gear ratio steering system malfunction | Click here | |
| Replace clearance warning ECU | - | |
| Corner sonar does not operate at all (self-check function operates normally) | Rear left sensor (ultrasonic sensor No. 1) malfunction | Click here |
| Rear right sensor (ultrasonic sensor No. 1) malfunction | Click here | |
| Replace clearance warning ECU | - | |
| Back sonar does not operate at all (self-check function operates normally) | Rear left center sensor (ultrasonic sensor No. 2) malfunction | Click here |
| Rear right center sensor (ultrasonic sensor No. 2) malfunction | Click here | |
| Replace clearance warning ECU | - | |
| Sonar detection operation is normal but buzzer operation is intermittent | No. 1 clearance warning buzzer circuit | Click here |
| Replace clearance warning ECU | - | |
| Detection operation is normal but sonar displays of multi-information display do not appear | Vehicle wire harness or connector (BEAN communication) | Click here |
| Replace clearance warning ECU | - | |
| Replace combination meter | - | |
| Detection operation is normal but sonar displays of multi-display do not appear (6 mph) | Vehicle wire harness or connector (BEAN communication) | Click here |
| Replace clearance warning ECU | - | |
| Replace network gateway ECU | - | |
| Replace multi-display | - | |
| Open circuit is displayed in self-check function | Front left sensor (ultrasonic sensor No. 3) malfunction | Click here |
| Front right sensor (ultrasonic sensor No. 3) malfunction | Click here | |
| Front left center sensor (ultrasonic sensor No. 3) malfunction | Click here | |
| Front right center sensor (ultrasonic sensor No. 3) malfunction | Click here | |
| Rear left sensor (ultrasonic sensor No. 1) malfunction | Click here | |
| Rear right sensor (ultrasonic sensor No. 1) malfunction | Click here | |
| Rear left center sensor (ultrasonic sensor No. 2) malfunction | Click here | |
| Rear right center sensor (ultrasonic sensor No. 2) malfunction | Click here | |
| Freeze condition is displayed in self-check function | Remove ice, mud or snow from ultrasonic sensor | - |
| Combination meter operates normally, but detection operates when shift lever position is P, or detection does not operate when shift lever is not on P | Vehicle wire harness or connector (BEAN communication) | Click here |
| Replace clearance warning ECU | - | |
| Combination meter operates normally but errors occur when vehicle speed exceeds 10 km/h | Vehicle wire harness or connector (BEAN communication) | Click here |
| Replace clearance warning ECU | - | |
| Steering angle information failure is displayed | Steering sensor malfunction | Click here |
| Variable gear ratio steering system malfunction | Click here | |
| CAN communication system malfunction | Click here |