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Diagnosis Procedure
1.CHECK REAR SONAR SENSOR SIGNAL RH INNER CIRCUIT (OPEN)
  1. Turn ignition switch OFF.
  2. Disconnect sonar control unit connector and rear sonar sensor RH inner connector.
  3. Check continuity between sonar control unit harness connector and rear sonar sensor RH inner connector.
    Sonar control unitRear sonar sensor RH innerContinuity
    ConnectorTerminalConnectorTerminal
    B209B4582Existed
Is the inspection result normal?
.
Repair the harness or connector.
 
2.CHECK REAR SONAR SENSOR RH INNER GROUND CIRCUIT
Check continuity between sonar control unit harness connector and rar sonar sensor RH inner harness connector.
Sonar control unitRear sonar sensor RH innerContinuity
ConnectorTerminalConnectorTerminal
B2014B4583Existed
Is the inspection result normal?
Replace the rear sonar sensor RH inner. Refer to Removal and Installation.
Repair the harness or connector.