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Diagnosis Procedure
1.CHECK REAR SENSOR POWER SUPPLY CIRCUIT (SHORT)
  1. Turn ignition switch OFF.
  2. 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.
  3. Check continuity between sonar control unit harness connector and ground.
Sonar control unitGroundContinuity
ConnectorTerminal
B2023Not existed
Is the inspection result normal?
Replace the sonar control unit. Refer to Removal and Installation.
Repair the harness or connector.