Diagnosis Procedure
1.
CHECK FRONT SONAR SENSOR SIGNAL RH INNER CIRCUIT (1)
Turn ignition switch OFF.
Disconnect sonar control unit connector and front sonar sensor RH inner connector.
Turn ignition switch ON.
Check voltage between sonar control unit harness connector and ground.
Sonar control unit
(-)
Voltage (Approx. )
Connector
Terminal
B20
1
Ground
0 V
Is the inspection result normal?
Repair harness or connector.
2.
CHECK FRONT SONAR SENSOR SIGNAL RH INNER CIRCUIT (2)
Turn ignition switch OFF.
Check continuity between front sonar sensor RH inner harness connector and ground.
Front sonar sensor RH inner
Ground
Continuity
Connector
Terminal
E306
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
DTC Description
.
Is DTC B272B-88 detected again?
Replace the front sonar sensor RH inner. Refer to
Removal and Installation
.
INSPECTION END