DTC B1D06:11 [BCM]

id0902f5389200

Malfunction Location

• Turn light (LH) circuit malfunction

Detection Condition

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

Possible Causes

• Connection malfunction with connector

• Short to ground in wiring harness between front turn light (LH) terminal C and BCM terminal 1L

• Short to ground in wiring harness between rear turn light (LH) terminal A and BCM terminal 3L

• Short to ground in wiring harness between front side turn light (LH) terminal A and BCM terminal1L

• BCM malfunction

System Wiring Diagram

am2zzw00003816

Diagnostic Procedure

Step

Inspection

Action

1

PERFORM DTC INSPECTION

•  Clear DTCs using the M-MDS.
(See CLEARING DTC [BCM].)

•  Turn the turn switch on.

•  Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)

•  Is DTC B1D06:11 displayed?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

VERIFY FRONT TURN LIGHT (LH) CONNECTOR CONDITION

•  Disconnect the negative battery cable.

•  Disconnect the front turn light connector (LH).

•  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 (LH) CONNECTOR CONDITION

•  Disconnect the negative battery cable.

•  Disconnect the front side turn light connector (LH).

•  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 (LH) CONNECTOR CONDITION

•  Disconnect the rear turn light connector (LH).

•  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 connector, then go to the final step.

6

VERIFY FOR SHORT CIRCUIT TO GROUND IN WIRING HARNESS BETWEEN FRONT TURN LIGHT (LH), FRONT SIDE TURN LIGHT (LH), REAR TURN LIGHT (LH) AND BCM

•  Inspect for continuity between the following terminals and body ground.

―  BCM terminal 1L

―  BCM terminal 3L

•  Is there continuity?

Yes

Repair or replace the related wiring harness, 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.
(See CLEARING DTC [BCM].)

•  Turn the turn switch on.

•  Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)

•  Is DTC B1D06:11 displayed?

Yes

Replace the BCM.

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

No

DTC troubleshooting completed.

Step	Inspection		Action
1	PERFORM DTC INSPECTION • Clear DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Turn the turn switch on. • Perform the BCM DTC inspection using the M-MDS. (See DTC INSPECTION [BCM].) • Is DTC B1D06:11 displayed?	Yes	Go to the next step.
1		No	DTC troubleshooting completed.
2	VERIFY FRONT TURN LIGHT (LH) CONNECTOR CONDITION • Disconnect the negative battery cable. • Disconnect the front turn light connector (LH). • Inspect the connection condition and wiring harness. • Are the connector terminals normal without damage, deformation, corrosion, or disconnection?	Yes	Go to the next step.
2		No	Repair or replace the connector, then go to the final step.
3	VERIFY FRONT SIDE TURN LIGHT (LH) CONNECTOR CONDITION • Disconnect the negative battery cable. • Disconnect the front side turn light connector (LH). • Inspect the connection condition and wiring harness. • Are the connector terminals normal without damage, deformation, corrosion, or disconnection?	Yes	Go to the next step.
3		No	Repair or replace the connector, then go to the final step.
4	VERIFY REAR TURN LIGHT (LH) CONNECTOR CONDITION • Disconnect the rear turn light connector (LH). • Inspect the connection condition and wiring harness. • Are the connector terminals normal without damage, deformation, corrosion, or disconnection?	Yes	Go to the next step.
4		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.
5		No	Repair or replace the connector, then go to the final step.
6	VERIFY FOR SHORT CIRCUIT TO GROUND IN WIRING HARNESS BETWEEN FRONT TURN LIGHT (LH), FRONT SIDE TURN LIGHT (LH), REAR TURN LIGHT (LH) AND BCM • Inspect for continuity between the following terminals and body ground. ― BCM terminal 1L ― BCM terminal 3L • Is there continuity?	Yes	Repair or replace the related wiring harness, then go to the final step.
6		No	Go to the next step.
7	VERIFY TROUBLESHOOTING COMPLETED • Connect all the connectors. • Connect the battery cable. • Clear DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Turn the turn switch on. • Perform the BCM DTC inspection using the M-MDS. (See DTC INSPECTION [BCM].) • Is DTC B1D06:11 displayed?	Yes	Replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
7		No	DTC troubleshooting completed.