Diagnosis Procedure
1.
CHECK FRONT SONAR SENSOR SIGNAL LH SIDE CIRCUIT (OPEN)
Turn ignition switch OFF.
Disconnect sonar control unit connector and front sonar sensor LH side connector.
Check continuity between sonar control unit harness connector and front sonar sensor LH side connector.
Sonar control unit
Front sonar sensor LH side
Continuity
Connector
Terminal
Connector
Terminal
B49
47
E308
2
Existed
Is the inspection result normal?
.
Repair the harness or connector.
2.
CHECK FRONT SONAR SENSOR LH SIDE GROUND CIRCUIT
Check continuity between sonar control unit harness connector and front sonar sensor LH side harness connector.
Sonar control unit
Front sonar sensor LH side
Continuity
Connector
Terminal
Connector
Terminal
B20
13
E308
3
Existed
Is the inspection result normal?
Replace the front sonar sensor LH side. Refer to
Removal and Installation
.
Repair the harness or connector.