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Diagnosis Procedure
1.CHECK REAR SONAR SENSOR SIGNAL RH OUTER CIRCUIT (OPEN)
  1. Turn ignition switch OFF.
  2. Disconnect sonar control unit connector and rear sonar sensor RH outer connector.
  3. Check continuity between sonar control unit harness connector and rear sonar sensor RH outer connector.
    Sonar control unitRear sonar sensor RH outerContinuity
    ConnectorTerminalConnectorTerminal
    B2010B4602Existed
Is the inspection result normal?
.
Repair the harness or connector.
 
2.CHECK REAR SONAR SENSOR RH OUTER GROUND CIRCUIT
Check continuity between sonar control unit harness connector and rear sonar sensor RH outer harness connector.
Sonar control unitRear sonar sensor RH outerContinuity
ConnectorTerminalConnectorTerminal
B2014B4603Existed
Is the inspection result normal?
Replace the rear sonar sensor RH outer. Refer to Removal and Installation.
Repair the harness or connector.