Diagnosis Procedure
- CHECK REAR TURN SIGNAL LAMP LH SIGNAL
- Turn ignition switch ON.
- With operating the turn signal switch, check output waveform between rear combination lamp LH harness connector and ground using oscilloscope.DTC Body side
+
-
Test item
Output waveform
(Reference value)
Rear combination lamp LH
Connector
Terminal
M194
4
Ground
Turn signal switch
Left
Center
0 V
DTC Back door side+
-
Test item
Output waveform
(Reference value)
Rear combination lamp LH
Connector
Terminal
M14
4
Ground
Turn signal switch
Left
Center
0 V
Is the inspection result normal?
YES
GO TO 2.
NO
GO TO 3.
- CHECK REAR TURN SIGNAL LAMP LH SIGNAL GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect rear combination lamp LH connector.
- Check continuity between rear combination lamp LH harness connector and ground.DTC Body side
Rear combination lamp LH
Ground
Continuity
Connector
Terminal
M194
5
Not existed
DTC Back door sideRear combination lamp LH
Ground
Continuity
Connector
Terminal
M14
5
Not existed
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace harness.
- CHECK REAR TURN SIGNAL LAMP LH SIGNAL CIRCUIT 1
- Turn ignition switch OFF.
- Disconnect following connectors.
- Rear combination lamp LH (body side)
- Rear combination lamp LH (back door side)
- BCM
- Check continuity between BCM harness connector and rear combination lamp LH harness connector.DTC Body side
BCM
Rear combination lamp LH
Continuity
Connector
Terminal
Connector
Terminal
M28
70
M194
4
Existed
DTC Back door sideBCM
Rear combination lamp LH
Continuity
Connector
Terminal
Connector
Terminal
M28
70
M14
4
Existed
- Check continuity between BCM harness connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M28
70
Not existed
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace harness.
- CHECK REAR TURN SIGNAL LAMP LH SIGNAL CIRCUIT 2
Check voltage between rear BCM harness connector and ground.
(+)
(-)
Voltage
(Approx.)
BCM
Connector
Terminal
M28
70
Ground
0 V
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace harness.
- ERASE DTC
- Connect following connectors.
- Rear combination lamp LH (body side)
- Rear combination lamp LH (back door side)
- BCM
- Turn ignition switch ON.
- Select "Self Diagnostic Result" mode of "BCM" using CONSULT.
- Erase DTC, and then repeat "DTC CONFIRMATION PROCEDURE". Refer to DTC Description .
Is DTC detected?
YES
GO TO 6.
NO
INSPECTION END
- Connect following connectors.
- REPLACE REAR COMBINATION LAMP LH AND ERASE DTC
- Turn ignition switch OFF.
- Replace corresponding rear combination lamp LH. Refer to Removal and Installation (body side) or Removal and Installation (back door side)
- Turn ignition switch ON.
- Select "Self Diagnostic Result" mode of "BCM" using CONSULT.
- Erase DTC, and then repeat "DTC CONFIRMATION PROCEDURE". Refer to DTC Description .
Is DTC detected?
YES
Replace BCM. Refer to Removal and Installation .
NO
INSPECTION END