DTC B1174:13 [BCM]

id0902f5415300

Description

• Door lock-link switch circuit malfunction

Detection Condition

• Open circuit in door lock-link switch circuit with the door lock-link switch unlocked.

Possible Causes

• Door latch and lock actuator connector or terminals malfunction

• Open circuit in wiring harness between the following:

― Front door latch and lock actuator (RH) terminal D—Body ground (L.H.D.)

― Front door latch and lock actuator (LH) terminal J—Body ground (R.H.D.)

― Rear door latch and lock actuator (LH) terminal J—Body ground

― Rear door latch and lock actuator (RH) terminal D—Body ground

• Door lock-link switch malfunction

• BCM connector or terminals malfunction

• Open circuit in wiring harness between the following:

― Front door latch and lock actuator (RH) terminal L—BCM terminal 8C (L.H.D.)

― Front door latch and lock actuator (LH) terminal B—BCM terminal 8C (R.H.D.)

― Rear door latch and lock actuator (LH) terminal B—BCM terminal 8C

― Rear door latch and lock actuator (RH) terminal L—BCM terminal 8C

• BCM malfunction

System Wiring Diagram

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Diagnostic Procedure

Step

Inspection

Action

1

PERFORM DTC INSPECTION

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

•  Perform the BCM DTC inspection using the M-MDS with the door lock-link switch unlocked.
(See DTC INSPECTION [BCM].)

•  Is the DTC B1174:13 present?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

INSPECT DOOR LATCH AND LOCK ACTUATOR CONNECTORS CONDITION

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the front door latch and lock actuator (driver's side), rear door latch and lock actuator (LH) and rear door latch and lock actuator (RH) connectors.

•  Inspect the connectors and terminals (corrosion, damage, pin disconnection).

•  Is there any malfunction?

Yes

Repair or replace the connector or terminals, then go to Step 7.

No

Go to the next step.

3

INSPECT DOOR LOCK-LINK SWITCH GROUND CIRCUITS FOR OPEN CIRCUIT

•  Front door latch and lock actuator (driver's side), rear door latch and lock actuator (LH) and rear door latch and lock actuator (RH) connectors are disconnected.

•  Inspect for continuity between the following terminal (wiring harness-side) and body ground:

―  Front door latch and lock actuator (RH) terminal D (L.H.D.)

―  Front door latch and lock actuator (LH) terminal J (R.H.D.)

―  Rear door latch and lock actuator (LH) terminal J

―  Rear door latch and lock actuator (RH) terminal D

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the wiring harness for a possible open circuit, then go to Step 7.

4

INSPECT DOOR LOCK-LINK SWITCHES

•  Inspect the door lock-link switch (driver's side), door lock-link switch (LR) and door lock-link switch (RR).
(See DOOR LOCK-LINK SWITCH INSPECTION.)

•  Is there any malfunction?

Yes

Replace the malfunctioning door latch and lock actuator, then go to Step 7.

(See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)

(See REAR DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)

No

Go to the next step.

5

INSPECT BCM CONNECTOR CONDITION

•  Disconnect the BCM connector.

•  Inspect the connector and terminals (corrosion, damage, pin disconnection).

•  Is there any malfunction?

Yes

Repair or replace the connector or terminals, then go to Step 7.

No

Go to the next step.

6

INSPECT DOOR LOCK-LINK SWITCH POWER SUPPLY CIRCUITS FOR OPEN CIRCUIT

•  Make sure to reconnect all disconnected connectors.

•  Reconnect the negative battery cable.

•  Measure the voltage at the following terminals (wiring harness-side):

―  Front door latch and lock actuator (RH) terminal L (L.H.D.)

―  Front door latch and lock actuator (LH) terminal B (R.H.D.)

―  Rear door latch and lock actuator (LH) terminal B

―  Rear door latch and lock actuator (RH) terminal L

•  Can the voltage be measured?

Yes

Go to the next step.

No

Repair or replace the wiring harness for a possible open circuit, then go to the next step.

7

VERIFY TROUBLESHOOTING COMPLETED

•  Make sure to reconnect all disconnected connectors.

•  Reconnect the negative battery cable.

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

•  Perform the BCM DTC inspection using the M-MDS with the door lock-link switch unlocked.
(See DTC INSPECTION [BCM].)

•  Is the DTC B1174:13 present?

Yes

Repeat the inspection from Step 1.

•  If the malfunction recurs, replace the BCM.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

8

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [BCM].)

No

DTC troubleshooting completed.

Step	Inspection		Action
1	PERFORM DTC INSPECTION • Clear the DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Perform the BCM DTC inspection using the M-MDS with the door lock-link switch unlocked. (See DTC INSPECTION [BCM].) • Is the DTC B1174:13 present?	Yes	Go to the next step.
1		No	DTC troubleshooting completed.
2	INSPECT DOOR LATCH AND LOCK ACTUATOR CONNECTORS CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the front door latch and lock actuator (driver's side), rear door latch and lock actuator (LH) and rear door latch and lock actuator (RH) connectors. • Inspect the connectors and terminals (corrosion, damage, pin disconnection). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 7.
2		No	Go to the next step.
3	INSPECT DOOR LOCK-LINK SWITCH GROUND CIRCUITS FOR OPEN CIRCUIT • Front door latch and lock actuator (driver's side), rear door latch and lock actuator (LH) and rear door latch and lock actuator (RH) connectors are disconnected. • Inspect for continuity between the following terminal (wiring harness-side) and body ground: ― Front door latch and lock actuator (RH) terminal D (L.H.D.) ― Front door latch and lock actuator (LH) terminal J (R.H.D.) ― Rear door latch and lock actuator (LH) terminal J ― Rear door latch and lock actuator (RH) terminal D • Is there continuity?	Yes	Go to the next step.
3		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 7.
4	INSPECT DOOR LOCK-LINK SWITCHES • Inspect the door lock-link switch (driver's side), door lock-link switch (LR) and door lock-link switch (RR). (See DOOR LOCK-LINK SWITCH INSPECTION.) • Is there any malfunction?	Yes	Replace the malfunctioning door latch and lock actuator, then go to Step 7. (See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.) (See REAR DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)
4		No	Go to the next step.
5	INSPECT BCM CONNECTOR CONDITION • Disconnect the BCM connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 7.
5		No	Go to the next step.
6	INSPECT DOOR LOCK-LINK SWITCH POWER SUPPLY CIRCUITS FOR OPEN CIRCUIT • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. • Measure the voltage at the following terminals (wiring harness-side): ― Front door latch and lock actuator (RH) terminal L (L.H.D.) ― Front door latch and lock actuator (LH) terminal B (R.H.D.) ― Rear door latch and lock actuator (LH) terminal B ― Rear door latch and lock actuator (RH) terminal L • Can the voltage be measured?	Yes	Go to the next step.
6		No	Repair or replace the wiring harness for a possible open circuit, then go to the next step.
7	VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. • Clear the DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Perform the BCM DTC inspection using the M-MDS with the door lock-link switch unlocked. (See DTC INSPECTION [BCM].) • Is the DTC B1174:13 present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.) Go to the next step.
7		No	Go to the next step.
8	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [BCM].)
8		No	DTC troubleshooting completed.