DTC B1172:11 [BCM]

id0902f5415100

Vehicles With Advanced Keyless Entry And Push Button Start System

Malfunction Location

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

Detection Condition

• Short to ground in front door lock-link switch (driver’s side) lock-side circuit with the front door lock-link switch (driver’s side) unlocked

Possible Causes

L.H.D.

• Short circuit to ground in wiring harness between front door lock-link switch (driver’s side) connector terminal D and BCM connector terminal 8G

• Short circuit to ground in wiring harness between front door lock-link switch (driver’s side) connector terminal D and keyless control module connector terminal 3P

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

• Keyless control module malfunction

• BCM malfunction

R.H.D.

• Short circuit to ground in wiring harness between front door lock-link switch (driver’s side) connector terminal J and BCM connector terminal 8G

• Short circuit to ground in wiring harness between front door lock-link switch (driver’s side) connector terminal J and keyless control module connector terminal 3P

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

• Keyless control module malfunction

• BCM malfunction

System Wiring Diagram

am6zzw00002150

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 front door lock-link switch (driver's side) unlocked.
(See DTC INSPECTION [BCM].)

•  Is DTC B1172:11 displayed?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

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

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the front door lock-link switch (driver’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 8.

3

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

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

•  Is the front door lock-link switch (driver’s side) normal?

Yes

Go to the next step.

No

Replace the front door lock-link switch (driver’s side).

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

After replacement, go to Step 8.

4

INSPECT KEYLESS CONTROL MODULE CONNECTOR CONDITION

•  Disconnect the keyless control module 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 8.

5

INSPECT BCM CONNECTOR CONDITION

•  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 8.

6

INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER’S SIDE) CIRCUIT FOR SHORT CIRCUIT TO GROUND

L.H.D.

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

•  Is there continuity?

R.H.D.

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

•  Is there continuity?

Yes

Repair/replace the wiring harness.

After repair procedure, go to Step 8.

No

Go to the next step.

7

INSPECT KEYLESS CONTROL MODULE

•  Reconnect the keyless control module connector.

•  Reconnect the negative battery cable.

•  Measure the voltage at the keyless control module connector terminal 3P.
(See KEYLESS CONTROL MODULE INSPECTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)

•  Is the voltage normal?

Yes

Go to the next step.

No

Replace the keyless control module.

(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)

After replacement, go to the next step.

8

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 front door lock-link switch (driver's side) 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.

9

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 front door lock-link switch (driver's side) unlocked. (See DTC INSPECTION [BCM].) • Is DTC B1172:11 displayed?	Yes	Go to the next step.
No	DTC troubleshooting completed.
2	INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER’S SIDE) CONNECTOR CONDITION • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the front door lock-link switch (driver’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 8.
3	INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER’S SIDE) • Inspect the front door lock-link switch (driver’s side). (See DOOR LOCK-LINK SWITCH INSPECTION.) • Is the front door lock-link switch (driver’s side) normal?	Yes	Go to the next step.
No	Replace the front door lock-link switch (driver’s side). (See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.) After replacement, go to Step 8.
4	INSPECT KEYLESS CONTROL MODULE CONNECTOR CONDITION • Disconnect the keyless control module 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 8.
5	INSPECT BCM CONNECTOR CONDITION • 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 8.
6	INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER’S SIDE) CIRCUIT FOR SHORT CIRCUIT TO GROUND L.H.D. • Inspect for continuity between front door lock-link switch (driver’s side) connector terminal D and body ground. • Is there continuity? R.H.D. • Inspect for continuity between front door lock-link switch (driver’s side) connector terminal J and body ground. • Is there continuity?	Yes	Repair/replace the wiring harness. After repair procedure, go to Step 8.
No	Go to the next step.
7	INSPECT KEYLESS CONTROL MODULE • Reconnect the keyless control module connector. • Reconnect the negative battery cable. • Measure the voltage at the keyless control module connector terminal 3P. (See KEYLESS CONTROL MODULE INSPECTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) • Is the voltage normal?	Yes	Go to the next step.
No	Replace the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) After replacement, go to the next step.
8	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 front door lock-link switch (driver's side) 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.
9	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are there other DTCs output?	Yes	Perform the corresponding DTC inspection.
No	DTC troubleshooting completed.

Vehicles With Keyless Entry System

Malfunction Location

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

Detection Condition

• Short to ground in front door lock-link switch (driver’s side) lock-side circuit with the front door lock-link switch (driver’s side) unlocked

Possible Causes

L.H.D.

• Short circuit to ground in wiring harness between front door lock-link switch (driver’s side) connector terminal D and BCM connector terminal 8G

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

• BCM malfunction

R.H.D.

• Short circuit to ground in wiring harness between front door lock-link switch (driver’s side) connector terminal J and BCM connector terminal 8G

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

• BCM malfunction

System Wiring Diagram

am6zzw00002151

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 front door lock-link switch (driver's side) unlocked.
(See DTC INSPECTION [BCM].)

•  Is DTC B1172:11 displayed?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

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

•  Switch the ignition to off.

•  Disconnect the negative battery cable.

•  Disconnect the front door lock-link switch (driver’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 6.

3

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

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

•  Is the front door lock-link switch (driver’s side) normal?

Yes

Go to the next step.

No

Replace the front door lock-link switch (driver’s side).

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

After replacement, go to Step 6.

4

INSPECT BCM CONNECTOR CONDITION

•  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 6.

5

INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER’S SIDE) CIRCUIT FOR SHORT CIRCUIT TO GROUND

L.H.D.

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

•  Is there continuity?

R.H.D.

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

•  Is there continuity?

Yes

Repair/replace the wiring harness.

After repair procedure, go to the next step.

No

Go to the next step.

6

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 front door lock-link switch (driver's side) 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.

7

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are there other DTCs output?

Yes

Perform the corresponding DTC inspection.

No

DTC troubleshooting completed.