DTC B1D07:11 [BCM]


id0902f5389400


Malfunction Location

•  Turn light (RH) circuit malfunction

Detection Condition

•  Short to ground in wiring harness between turn light (RH) and BCM

Possible Causes

•  Connection malfunction with connector
•  Short to ground in wiring harness between front turn light (RH) terminal C and BCM terminal 1K
•  Short to ground in wiring harness between rear turn light (RH) terminal A and BCM terminal 3J
•  Short to ground in wiring harness between front side turn light (RH) terminal A and BCM terminal 1K
•  BCM malfunction

System Wiring Diagram

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Diagnostic Procedure

Step

Inspection

Action

1
PERFORM DTC INSPECTION
•  Clear DTCs using the M-MDS.
•  Turn the turn switch on.
•  Perform the BCM DTC inspection using the M-MDS.
•  Is DTC B1D07:11 displayed?
Yes
Go to the next step.
No
DTC troubleshooting completed.
2
VERIFY FRONT TURN LIGHT (RH) CONNECTOR CONDITION
•  Disconnect the negative battery cable.
•  Disconnect the front turn light connector (RH).
•  Inspect the connection condition and wiring harness.
•  Are the connector terminals normal without damage, deformation, corrosion, or disconnection?
Yes
Go to the next step.
No
Repair or replace the connector, then go to the final step.
3
VERIFY FRONT SIDE TURN LIGHT (RH) CONNECTOR CONDITION
•  Disconnect the negative battery cable.
•  Disconnect the front side turn light connector (RH).
•  Inspect the connection condition and wiring harness.
•  Are the connector terminals normal without damage, deformation, corrosion, or disconnection?
Yes
Go to the next step.
No
Repair or replace the connector, then go to the final step.
4
VERIFY REAR TURN LIGHT (RH) CONNECTOR CONDITION
•  Disconnect the rear turn light connector (RH).
•  Inspect the connection condition and wiring harness.
•  Are the connector terminals normal without damage, deformation, corrosion, or disconnection?
Yes
Go to the next step.
No
Repair or replace the connector, then go to the final step.
5
VERIFY BCM CONNECTOR CONDITION
•  Disconnect the BCM connector.
•  Inspect the connection condition and wiring harness.
•  Are the connector terminals normal without damage, deformation, corrosion, or disconnection?
Yes
Go to the next step.
No
Repair or replace the related wiring harness, then go to the final step.
6
VERIFY WIRING HARNESS BETWEEN FRONT TURN LIGHT (RH), FRONT SIDE TURN LIGHT (RH), REAR TURN LIGHT (RH) AND BCM FOR SHORT TO GROUND
•  Inspect for continuity between the following terminal and body ground.
―  BCM terminal 1K
―  BCM terminal 3J
•  Is there continuity?
Yes
Repair or replace the connector, then go to the final step.
No
Go to the next step.
7
VERIFY TROUBLESHOOTING COMPLETED
•  Connect all the connectors.
•  Connect the battery cable.
•  Clear DTCs using the M-MDS.
•  Turn the switch on.
•  Perform the BCM DTC inspection using the M-MDS.
•  Is DTC B1D07:11 displayed?
Yes
Replace the BCM.
No
DTC troubleshooting completed.