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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?
.
Repair the harness or connector.
 
3.CHECK REAR SONAR SENSOR SIGNAL RH OUTER
  1. Connect sonar control unit connector and rear sonar sensor RH outer connector.
  2. Turn ignition switch ON.
  3. Check the signal between sonar control unit terminals as per the following condition.
    +−ConditionVoltage
    Sonar control unit
    ConnectorTerminalConnectorTerminal
    B2010B2014
    • Shift position is in R position.
    • When the sensor is detecting an obstacle
Is the inspection result normal?
Replace the sonar control unit. Refer to Removal and Installation.
Replace the rear sonar sensor RH outer. Refer to Removal and Installation.