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Diagnosis Procedure
1.CHECK REAR SONAR SENSOR SIGNAL RH OUTER CIRCUIT (1)
  1. Turn ignition switch OFF.
  2. Disconnect sonar control unit connector and rear sonar sensor RH outer connector.
  3. Turn ignition switch ON.
  4. Check voltage between sonar control unit harness connector and ground.
    Sonar control unit(-)Voltage (Approx. )
    ConnectorTerminal
    B2010Ground0 V
Is the inspection result normal?
Repair harness or connector.
 
2.CHECK REAR SONAR SENSOR SIGNAL RH OUTER CIRCUIT (2)
  1. Turn ignition switch OFF.
  2. Check continuity between rear sonar sensor LH outer harness connector and ground.
Rear sonar sensor RH outerGroundContinuity
ConnectorTerminal
B4602Not existed
Is the inspection result normal?
Replace the rear sonar sensor RH outer. Refer to Removal and Installation.
Repair the harness or connector.