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Diagnosis Procedure
1.CHECK FRONT SENSOR POWER SUPPLY CIRCUIT
  1. Turn ignition switch OFF.
  2. Disconnect sonar control unit connector, front sonar sensor LH/RH outer connector, front sonar sensor LH/RH inner connector and front sonar sensor LH/RH side connector.
  3. Turn ignition switch ON.
  4. Check voltage between sonar control unit harness connector and ground.
    Sonar control unit(-)Voltage (Approx. )
    ConnectorTerminal
    B2011Ground0 V
Is the inspection result normal?
Replace the sonar control unit. Refer to Removal and Installation.
Repair harness or connector.