1.CHECK REAR SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect sonar control unit connector, rear sonar sensor LH/RH outer connector, rear sonar sensor LH/RH inner connector and rear sonar sensor LH/RH side connector.
- Turn ignition switch ON.
- Check voltage between sonar control unit harness connector and ground.
| Sonar control unit | (-) | Voltage (Approx. ) |
| Connector | Terminal |
| B20 | 23 | Ground | 0 V |
Is the inspection result normal?
Repair harness or connector.
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Replace the sonar control unit. Refer to Removal and Installation
.