DTC B1174:13 [BCM]

id0902f5415300

Malfunction Location

• Door lock-link switch circuit malfunction

Detection Condition

• Open circuit detected in door lock-link switch unlock-side circuit with the door lock-link switch unlocked

Possible Causes

L.H.D.

• Open circuit in wiring harness between front door lock-link switch (passenger’s side) connector terminal L and BCM connector terminal 8C

• Open circuit in wiring harness between front door lock-link switch (passenger’s side) connector terminal D and body ground

• Open circuit in wiring harness between rear door lock-link switch (LH) connector terminal B and BCM connector terminal 8C

• Open circuit in wiring harness between rear door lock-link switch (LH) connector terminal J and body ground

• Open circuit in wiring harness between rear door lock-link switch (RH) connector terminal L and BCM connector terminal 8C

• Open circuit in wiring harness between rear door lock-link switch (RH) connector terminal D and body ground

• Front door lock-link switch (passenger’s side) malfunction

• Rear door lock-link switch (LH) malfunction

• Rear door lock-link switch (RH) malfunction

• BCM malfunction

R.H.D.

• Open circuit in wiring harness between front door lock-link switch (passenger’s side) connector terminal B and BCM connector terminal 8C

• Open circuit in wiring harness between front door lock-link switch (passenger’s side) connector terminal J and body ground

• Open circuit in wiring harness between rear door lock-link switch (LH) connector terminal B and BCM connector terminal 8C

• Open circuit in wiring harness between rear door lock-link switch (LH) connector terminal J and body ground

• Open circuit in wiring harness between rear door lock-link switch (RH) connector terminal L and BCM connector terminal 8C

• Open circuit in wiring harness between rear door lock-link switch (RH) connector terminal D and body ground

• Front door lock-link switch (passenger’s side) malfunction

• Rear door lock-link switch (LH) malfunction

• Rear door lock-link switch (RH) malfunction

• BCM malfunction

System Wiring Diagram

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Diagnostic Procedure

Step

Inspection

Action

1

PERFORM DTC INSPECTION

•  Clear 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 DTC B1174:13 displayed?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

DETERMINE THE MALFUNCTIONING BASED ON THE MALFUNCTIONING LOCATION

•  Operate the door lock-link switch LOCK and UNLOCK.

•  Is there a door lock-link switch that does not operate?

Yes

Only the front door lock-link switch (passenger’s side) does not operate

•  Go to Step 5.

Only the rear door lock-link switch (LH) does not operate

•  Go to Step 11.

Only the rear door lock-link switch (RH) does not operate

•  Go to Step 17.

All door lock-link switches do not operate

•  Go to the next step.

No

Go to Step 23.

3

INSPECT BCM CONNECTOR CONDITION

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the BCM connector.

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

•  Is the connector normal?

Yes

Go to the next step.

No

Repair/replace the connector or terminal.

After repair procedure, go to Step 23.

4

INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE), REAR DOOR LOCK-LINK SWITCH (LH), REAR DOOR LOCK-LINK SWITCH (RH) CIRCUIT FOR OPEN CIRCUIT

L.H.D.

•  Disconnect the front door lock-link switch (passenger's side) connector.

•  Inspect for continuity between front door lock-link switch (passenger's side) connector terminal L and BCM connector terminal 8C.

•  Is there continuity?

R.H.D.

•  Disconnect the front door lock-link switch (passenger's side) connector.

•  Inspect for continuity between front door lock-link switch (passenger's side) connector terminal B and BCM connector terminal 8C.

•  Is there continuity?

Yes

Go to Step 23.

No

Repair/replace the wiring harness.

After repair procedure, go to Step 23.

5

INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE) CONNECTOR CONDITION

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the front door lock-link switch (passenger's side) connector.

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

•  Is the connector normal?

Yes

Go to the next step.

No

Repair/replace the connector or terminal.

After repair procedure, go to Step 23.

6

INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE) CIRCUIT FOR OPEN CIRCUIT

L.H.D.

•  Reconnect the negative battery cable.

•  Measure the voltage at front door lock-link switch (passenger's side) connector terminal L.

•  Can the voltage be measured?

R.H.D.

•  Reconnect the negative battery cable.

•  Measure the voltage at front door lock-link switch (passenger's side) connector terminal B.

•  Can the voltage be measured?

Yes

Go to the next step.

No

Go to Step 9.

7

INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE) CIRCUIT FOR OPEN CIRCUIT

L.H.D.

•  Inspect for continuity between front door lock-link switch (passenger's side) connector terminal D and body ground.

•  Is there continuity?

R.H.D.

•  Inspect for continuity between front door lock-link switch (passenger's side) connector terminal J and body ground.

•  Is there continuity?

Yes

Go to the next step.

No

Repair/replace the wiring harness.

After repair procedure, go to Step 23.

8

INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE)

•  Inspect the front door lock-link switch (passenger's side).
(See DOOR LOCK-LINK SWITCH INSPECTION.)

•  Is the front door lock-link switch (passenger's side) normal?

Yes

Go to Step 23.

No

Replace the front door lock-link switch (passenger's side).

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

After replacement, go to Step 23.

9

INSPECT BCM CONNECTOR CONDITION

•  Disconnect the negative battery cable.

•  Disconnect the BCM connector.

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

•  Is the connector normal?

Yes

Go to the next step.

No

Repair/replace the connector or terminal.

After repair procedure, go to Step 23.

10

INSPECT BCM

•  Reconnect the BCM connector.

•  Reconnect the negative battery cable.

•  Measure the voltage at BCM connector terminal 8C.
(See BODY CONTROL MODULE (BCM) INSPECTION.)

•  Is the voltage normal?

Yes

Go to Step 23.

No

Repair/replace the wiring harness.

After repair procedure, go to Step 23.

11

INSPECT REAR DOOR LOCK-LINK SWITCH (LH) CONNECTOR CONDITION

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the rear door lock-link switch (LH) connector.

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

•  Is the connector normal?

Yes

Go to the next step.

No

Repair/replace the connector or terminal.

After repair procedure, go to Step 23.

12

INSPECT REAR DOOR LOCK-LINK SWITCH (LH) CIRCUIT FOR OPEN CIRCUIT

•  Reconnect the negative battery cable.

•  Measure the voltage at rear door lock-link switch (LH) connector terminal B.

•  Can the voltage be measured?

Yes

Go to the next step.

No

Go to Step 15.

13

INSPECT REAR DOOR LOCK-LINK SWITCH (LH) CIRCUIT FOR OPEN CIRCUIT

•  Inspect for continuity between rear door lock-link switch (LH) connector terminal J and body ground.

•  Is there continuity?

Yes

Go to the next step.

No

Repair/replace the wiring harness.

After repair procedure, go to Step 23.

14

INSPECT REAR DOOR LOCK-LINK SWITCH (LH)

•  Inspect the rear door lock-link switch (LH).
(See DOOR LOCK-LINK SWITCH INSPECTION.)

•  Is the rear door lock-link switch (LH) normal?

Yes

Go to Step 23.

No

Replace the rear door lock-link switch (LH).

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

After replacement, go to Step 23.

15

INSPECT BCM CONNECTOR CONDITION

•  Disconnect the negative battery cable.

•  Disconnect the BCM connector.

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

•  Is the connector normal?

Yes

Go to the next step.

No

Repair/replace the connector or terminal.

After repair procedure, go to Step 23.

16

INSPECT BCM

•  Reconnect the BCM connector.

•  Reconnect the negative battery cable.

•  Measure the voltage at BCM connector terminal 8C.
(See BODY CONTROL MODULE (BCM) INSPECTION.)

•  Is the voltage normal?

Yes

Go to Step 23.

No

Repair/replace the wiring harness.

After repair procedure, go to Step 23.

17

INSPECT REAR DOOR LOCK-LINK SWITCH (RH) CONNECTOR CONDITION

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the rear door lock-link switch (RH) connector.

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

•  Is the connector normal?

Yes

Go to the next step.

No

Repair/replace the connector or terminal.

After repair procedure, go to Step 23.

18

INSPECT REAR DOOR LOCK-LINK SWITCH (RH) CIRCUIT FOR OPEN CIRCUIT

•  Reconnect the negative battery cable.

•  Measure the voltage at rear door lock-link switch (RH) connector terminal L.

•  Can the voltage be measured?

Yes

Go to the next step.

No

Go to Step 21.

19

INSPECT REAR DOOR LOCK-LINK SWITCH (RH) CIRCUIT FOR OPEN CIRCUIT

•  Inspect for continuity between rear door lock-link switch (RH) connector terminal D and body ground.

•  Is there continuity?

Yes

Go to the next step.

No

Repair/replace the wiring harness.

After repair procedure, go to Step 23.

20

INSPECT REAR DOOR LOCK-LINK SWITCH (RH)

•  Inspect the rear door lock-link switch (RH).
(See DOOR LOCK-LINK SWITCH INSPECTION.)

•  Is the rear door lock-link switch (RH) normal?

Yes

Go to Step 23.

No

Replace the rear door lock-link switch (RH).

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

After replacement, go to Step 23.

21

INSPECT BCM CONNECTOR CONDITION

•  Disconnect the negative battery cable.

•  Disconnect the BCM connector.

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

•  Is the connector normal?

Yes

Go to the next step.

No

Repair/replace the connector or terminal.

After repair procedure, go to Step 23.

22

INSPECT BCM

•  Reconnect the BCM connector.

•  Reconnect the negative battery cable.

•  Measure the voltage at BCM connector terminal 8C.
(See BODY CONTROL MODULE (BCM) INSPECTION.)

•  Is the voltage normal?

Yes

Go to the next step.

No

Repair/replace the wiring harness.

After repair procedure, go to the next step.

23

VERIFY DTC

•  Reconnect the disconnected connectors and the negative battery cable.

•  Clear 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 same DTC 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.

24

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are there other DTCs output?

Yes

Perform the corresponding DTC inspection.

No

DTC troubleshooting completed.

Step	Inspection		Action
1	PERFORM DTC INSPECTION • Clear 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 DTC B1174:13 displayed?	Yes	Go to the next step.
1		No	DTC troubleshooting completed.
2	DETERMINE THE MALFUNCTIONING BASED ON THE MALFUNCTIONING LOCATION • Operate the door lock-link switch LOCK and UNLOCK. • Is there a door lock-link switch that does not operate?	Yes	Only the front door lock-link switch (passenger’s side) does not operate • Go to Step 5. Only the rear door lock-link switch (LH) does not operate • Go to Step 11. Only the rear door lock-link switch (RH) does not operate • Go to Step 17. All door lock-link switches do not operate • Go to the next step.
2		No	Go to Step 23.
3	INSPECT BCM CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the BCM connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is the connector normal?	Yes	Go to the next step.
3		No	Repair/replace the connector or terminal. After repair procedure, go to Step 23.
4	INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE), REAR DOOR LOCK-LINK SWITCH (LH), REAR DOOR LOCK-LINK SWITCH (RH) CIRCUIT FOR OPEN CIRCUIT L.H.D. • Disconnect the front door lock-link switch (passenger's side) connector. • Inspect for continuity between front door lock-link switch (passenger's side) connector terminal L and BCM connector terminal 8C. • Is there continuity? R.H.D. • Disconnect the front door lock-link switch (passenger's side) connector. • Inspect for continuity between front door lock-link switch (passenger's side) connector terminal B and BCM connector terminal 8C. • Is there continuity?	Yes	Go to Step 23.
4		No	Repair/replace the wiring harness. After repair procedure, go to Step 23.
5	INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE) CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the front door lock-link switch (passenger's side) connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is the connector normal?	Yes	Go to the next step.
5		No	Repair/replace the connector or terminal. After repair procedure, go to Step 23.
6	INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE) CIRCUIT FOR OPEN CIRCUIT L.H.D. • Reconnect the negative battery cable. • Measure the voltage at front door lock-link switch (passenger's side) connector terminal L. • Can the voltage be measured? R.H.D. • Reconnect the negative battery cable. • Measure the voltage at front door lock-link switch (passenger's side) connector terminal B. • Can the voltage be measured?	Yes	Go to the next step.
6		No	Go to Step 9.
7	INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE) CIRCUIT FOR OPEN CIRCUIT L.H.D. • Inspect for continuity between front door lock-link switch (passenger's side) connector terminal D and body ground. • Is there continuity? R.H.D. • Inspect for continuity between front door lock-link switch (passenger's side) connector terminal J and body ground. • Is there continuity?	Yes	Go to the next step.
7		No	Repair/replace the wiring harness. After repair procedure, go to Step 23.
8	INSPECT FRONT DOOR LOCK-LINK SWITCH (PASSENGER’S SIDE) • Inspect the front door lock-link switch (passenger's side). (See DOOR LOCK-LINK SWITCH INSPECTION.) • Is the front door lock-link switch (passenger's side) normal?	Yes	Go to Step 23.
8		No	Replace the front door lock-link switch (passenger's side). (See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.) After replacement, go to Step 23.
9	INSPECT BCM CONNECTOR CONDITION • Disconnect the negative battery cable. • Disconnect the BCM connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is the connector normal?	Yes	Go to the next step.
9		No	Repair/replace the connector or terminal. After repair procedure, go to Step 23.
10	INSPECT BCM • Reconnect the BCM connector. • Reconnect the negative battery cable. • Measure the voltage at BCM connector terminal 8C. (See BODY CONTROL MODULE (BCM) INSPECTION.) • Is the voltage normal?	Yes	Go to Step 23.
10		No	Repair/replace the wiring harness. After repair procedure, go to Step 23.
11	INSPECT REAR DOOR LOCK-LINK SWITCH (LH) CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the rear door lock-link switch (LH) connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is the connector normal?	Yes	Go to the next step.
11		No	Repair/replace the connector or terminal. After repair procedure, go to Step 23.
12	INSPECT REAR DOOR LOCK-LINK SWITCH (LH) CIRCUIT FOR OPEN CIRCUIT • Reconnect the negative battery cable. • Measure the voltage at rear door lock-link switch (LH) connector terminal B. • Can the voltage be measured?	Yes	Go to the next step.
12		No	Go to Step 15.
13	INSPECT REAR DOOR LOCK-LINK SWITCH (LH) CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between rear door lock-link switch (LH) connector terminal J and body ground. • Is there continuity?	Yes	Go to the next step.
13		No	Repair/replace the wiring harness. After repair procedure, go to Step 23.
14	INSPECT REAR DOOR LOCK-LINK SWITCH (LH) • Inspect the rear door lock-link switch (LH). (See DOOR LOCK-LINK SWITCH INSPECTION.) • Is the rear door lock-link switch (LH) normal?	Yes	Go to Step 23.
14		No	Replace the rear door lock-link switch (LH). (See REAR DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.) After replacement, go to Step 23.
15	INSPECT BCM CONNECTOR CONDITION • Disconnect the negative battery cable. • Disconnect the BCM connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is the connector normal?	Yes	Go to the next step.
15		No	Repair/replace the connector or terminal. After repair procedure, go to Step 23.
16	INSPECT BCM • Reconnect the BCM connector. • Reconnect the negative battery cable. • Measure the voltage at BCM connector terminal 8C. (See BODY CONTROL MODULE (BCM) INSPECTION.) • Is the voltage normal?	Yes	Go to Step 23.
16		No	Repair/replace the wiring harness. After repair procedure, go to Step 23.
17	INSPECT REAR DOOR LOCK-LINK SWITCH (RH) CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the rear door lock-link switch (RH) connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is the connector normal?	Yes	Go to the next step.
17		No	Repair/replace the connector or terminal. After repair procedure, go to Step 23.
18	INSPECT REAR DOOR LOCK-LINK SWITCH (RH) CIRCUIT FOR OPEN CIRCUIT • Reconnect the negative battery cable. • Measure the voltage at rear door lock-link switch (RH) connector terminal L. • Can the voltage be measured?	Yes	Go to the next step.
18		No	Go to Step 21.
19	INSPECT REAR DOOR LOCK-LINK SWITCH (RH) CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between rear door lock-link switch (RH) connector terminal D and body ground. • Is there continuity?	Yes	Go to the next step.
19		No	Repair/replace the wiring harness. After repair procedure, go to Step 23.
20	INSPECT REAR DOOR LOCK-LINK SWITCH (RH) • Inspect the rear door lock-link switch (RH). (See DOOR LOCK-LINK SWITCH INSPECTION.) • Is the rear door lock-link switch (RH) normal?	Yes	Go to Step 23.
20		No	Replace the rear door lock-link switch (RH). (See REAR DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.) After replacement, go to Step 23.
21	INSPECT BCM CONNECTOR CONDITION • Disconnect the negative battery cable. • Disconnect the BCM connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is the connector normal?	Yes	Go to the next step.
21		No	Repair/replace the connector or terminal. After repair procedure, go to Step 23.
22	INSPECT BCM • Reconnect the BCM connector. • Reconnect the negative battery cable. • Measure the voltage at BCM connector terminal 8C. (See BODY CONTROL MODULE (BCM) INSPECTION.) • Is the voltage normal?	Yes	Go to the next step.
22		No	Repair/replace the wiring harness. After repair procedure, go to the next step.
23	VERIFY DTC • Reconnect the disconnected connectors and the negative battery cable. • Clear 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 same DTC 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.
23		No	Go to the next step.
24	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are there other DTCs output?	Yes	Perform the corresponding DTC inspection.
24		No	DTC troubleshooting completed.