Diagnosis Procedure
1.
CHECK FRONT SONAR SENSOR SIGNAL LH INNER CIRCUIT (OPEN)
Turn electric motor switch OFF.
Disconnect sonar control unit connector and front sonar sensor LH inner connector.
Check continuity between sonar control unit harness connector and front sonar sensor LH inner connector.
Sonar control unit
Front sonar sensor LH inner
Continuity
Connector
Terminal
Connector
Terminal
B20
2
E305
2
Existed
Is the inspection result normal?
.
Repair the harness or connector.
2.
CHECK FRONT SONAR SENSOR LH INNER GROUND CIRCUIT
Check continuity between sonar control unit harness connector and front sonar sensor LH inner harness connector.
Sonar control unit
Front sonar sensor LH inner
Continuity
Connector
Terminal
Connector
Terminal
B20
13
E305
3
Existed
Is the inspection result normal?
Replace the front sonar sensor LH inner. Refer to
Removal and Installation
.
Repair the harness or connector.