Problem Symptoms Table
HINT:
- Before performing verification listed in the table below, check the fuse and relay.
- Check the circuits for each problem symptom in the order given in the table below, and proceed to the relevant information.
CLEARANCE SONAR SYSTEM:
SYMPTOM
| Symptom | Suspected area | See information | ||||
|---|---|---|---|---|---|---|
| Entirely inoperative (Self check does not function). | 1. Power source of clearance warning ECU circuit | CLEARANCE WARNING ECU POWER SOURCE CIRCUIT | ||||
| 2. Clearance warning ECU ((1)) | CLEARANCE WARNING ECU | |||||
| 3. Clearance warning ECU ((2)) | CLEARANCE WARNING ECU | |||||
| Only back sonar does not function (Self check functions normally). | 1. Back sonar sensor LH circuit | BACK SONAR SENSOR LH CIRCUIT | ||||
| 2. Back sonar sensor RH circuit | BACK SONAR SENSOR RH CIRCUIT | |||||
| 3. Clearance warning ECU ((1)) | CLEARANCE WARNING ECU | |||||
| 4. Clearance warning ECU ((2)) | CLEARANCE WARNING ECU | |||||
| Only clearance sonar does not functions (Self check functions normally). | 1. Front clearance sonar LH circuit ((1)) | FRONT CLEARANCE SONAR SENSOR LH CIRCUIT | ||||
| 2. Front clearance sonar RH circuit ((1)) | FRONT CLEARANCE SONAR SENSOR LH CIRCUIT | |||||
| 3. Rear clearance sonar LH circuit | FRONT CLEARANCE SONAR SENSOR RH CIRCUIT | |||||
| 4. Rear clearance sonar RH circuit | REAR CLEARANCE SONAR SENSOR LH CIRCUIT | |||||
| 5. Clearance warning ECU ((1)) | CLEARANCE WARNING ECU | |||||
| 6. Clearance warning ECU ((2)) | CLEARANCE WARNING ECU | |||||
| Although detection can be done, no buzzer sounds sometimes (Back sonar, Rear clearance sonar). | 1. No. 2 clearance warning buzzer | NO. 2 CLEARANCE WARNING BUZZER CIRCUIT | ||||
| 2. Clearance warning ECU ((2)) | CLEARANCE WARNING ECU | |||||
| Although detection can be done, no buzzer sounds sometimes (Front clearance sonar). | 1. No. 1 clearance warning buzzer ((1)) | NO. 1 CLEARANCE WARNING BUZZER CIRCUIT | ||||
| 2. Clearance warning ECU ((1)) | CLEARANCE WARNING ECU | |||||
| Although detection can be done, the indicator does not light sometimes. | 1. Indicator circuit | INDICATOR CIRCUIT | ||||
| 2. Clearance warning ECU ((1)) | CLEARANCE WARNING ECU | |||||
| 3. Clearance warning ECU ((2)) | CLEARANCE WARNING ECU | |||||
| "Disconnected" or "Frozen" is displayed in the self check function. | 1. Back sonar sensor LH circuit | BACK SONAR SENSOR LH CIRCUIT | ||||
| 2. Back sonar sensor RH circuit | BACK SONAR SENSOR RH CIRCUIT | |||||
| 3. Front clearance sonar LH circuit ((1)) | FRONT CLEARANCE SONAR SENSOR LH CIRCUIT | |||||
| 4. Front clearance sonar RH circuit ((1)) | FRONT CLEARANCE SONAR SENSOR RH CIRCUIT | |||||
| 5. Rear clearance sonar LH circuit | REAR CLEARANCE SONAR SENSOR LH CIRCUIT | |||||
| 6. Rear clearance sonar RH circuit | REAR CLEARANCE SONAR SENSOR RH CIRCUIT | |||||
| 7. Clearance warning ECU ((1)) | CLEARANCE WARNING ECU | |||||
| 8. Clearance warning ECU ((2)) | CLEARANCE WARNING ECU | |||||
| 9. Sensor is wetted or frozen | - | |||||
| The system operates with the shift lever not in the R position, or does not operate with the shift lever in the R position (Back sonar and rear clearance sonar). | 1. Park / Neutral position switch circuit | PARK / NEUTRAL POSITION SWITCH CIRCUIT | ||||
| 2. Clearance warning ECU ((2)) | CLEARANCE WARNING ECU | |||||
| The system operates with the shift lever in the P position, or does not operate with the shift lever not in the P position (Front clearance sonar). | 1. Park / Neutral position switch circuit | PARK / NEUTRAL POSITION SWITCH CIRCUIT | ||||
| 2. Clearance warning ECU ((1)) | CLEARANCE WARNING ECU | |||||
| Detection can be done although the vehicle speed is 10 km/h (6 mph) or more. | 1. Speed signal circuit | SPEED SIGNAL CIRCUIT | ||||
| 2. Clearance warning ECU ((2)) | CLEARANCE WARNING ECU | |||||
| Buzzer volume is too low. | Adjust buzzer volume | ADJUSTMENT | ||||
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