Diagnosis Procedure
1.
CHECK FRONT SONAR SENSOR SIGNAL LH SIDE CIRCUIT (1)
Turn ignition switch OFF.
Disconnect sonar control unit connector and front sonar sensor LH side connector.
Turn ignition switch ON.
Check voltage between sonar control unit harness connector and ground.
Sonar control unit
(-)
Voltage (Approx. )
Connector
Terminal
B49
47
Ground
0 V
Is the inspection result normal?
Repair harness or connector.
2.
CHECK FRONT SONAR SENSOR SIGNAL LH SIDE CIRCUIT (2)
Turn ignition switch OFF.
Check continuity between front sonar sensor LH side harness connector and ground.
Front sonar sensor LH side
Ground
Continuity
Connector
Terminal
E308
2
Not existed
Is the inspection result normal?
.
Repair the harness or connector.
3.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With M.U.T.-III SE
Turn ignition switch ON.
Erase DTC.
Perform DTC confirmation procedure again. Refer to
DTC Description
.
Is DTC B272E-88 detected again?
Replace the front sonar sensor LH side. Refer to
Removal and Installation
.
INSPECTION END