Diagnosis Procedure
1.
CHECK FRONT SONAR SENSOR SIGNAL LH OUTER CIRCUIT (OPEN)
Turn ignition switch OFF.
Disconnect sonar control unit connector and front sonar sensor LH outer connector.
Check continuity between sonar control unit harness connector and front sonar sensor LH outer connector.
Sonar control unit
Front sonar sensor LH outer
Continuity
Connector
Terminal
Connector
Terminal
B20
3
E304
2
Existed
Is the inspection result normal?
.
Repair the harness or connector.
2.
CHECK FRONT SONAR SENSOR LH OUTER GROUND CIRCUIT
Check continuity between sonar control unit harness connector and front sonar sensor LH outer harness connector.
Sonar control unit
Front sonar sensor LH outer
Continuity
Connector
Terminal
Connector
Terminal
B20
13
E304
3
Existed
Is the inspection result normal?
Replace the front sonar sensor LH outer. Refer to
Removal and Installation
.
Repair the harness or connector.