DTC B1172:11 [BCM]

id0902f5415100

DESCRIPTION

Front door lock-link switch (driver-side) unlock-side circuit malfunction
DETECTION CONDITION
•  Short to ground in the front door lock-link switch (driver-side) unlock-side circuit with the front door lock-link switch (driver-side) locked.
POSSIBLE CAUSE
•  Front door latch and lock actuator (driver-side) connector or terminals malfunction
•  Front door lock-link switch (driver-side) malfunction
•  BCM connector or terminals malfunction
•  Short to ground in wiring harness between the following terminals:
―  L.H.D.:
•  Front door latch and lock actuator (LH) terminal B—BCM terminal 6L
―  R.H.D.:
•  Front door latch and lock actuator (RH) terminal L—BCM terminal 6L
•  BCM malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
CONFIRM BCM DTC
•  Clear the DTC using the M-MDS.
•  Perform the BCM DTC inspection using the M-MDS with the front door lock-link switch (driver-side) locked.
•  Is the same DTC present?
Yes
Go to the next step.
No
Go to Step 7.
2
INSPECT FRONT DOOR LATCH AND LOCK ACTUATOR (DRIVER-SIDE) CONNECTOR AND TERMINALS
•  Switch the ignition to off.
•  Disconnect the negative battery cable.
•  Disconnect the front door latch and lock actuator (driver-side) 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 6.
No
Go to the next step.
3
INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER-SIDE)
•  Inspect the front door lock-link switch (driver-side).
•  Is there any malfunction?
Yes
Replace the front door latch and lock actuator (driver-side), then go to Step 6.
(See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)
No
Go to the next step.
4
INSPECT BCM CONNECTOR AND TERMINALS
•  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 6.
No
Go to the next step.
5
INSPECT FRONT DOOR LOCK-LINK SWITCH (DRIVER-SIDE) CIRCUIT FOR SHORT TO GROUND
•  Verify that the front door latch and lock actuator (driver-side) and BCM connectors are disconnected.
•  Inspect for continuity between the following terminal (wiring harness-side) and body ground:
―  L.H.D.:
•  Front door latch and lock actuator (LH) terminal B
―  R.H.D.:
•  Front door latch and lock actuator (RH) terminal L
•  Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to ground, then go to the next step.
No
Go to the next step.
6
VERIFY TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC using the M-MDS.
•  Perform the BCM DTC inspection using the M-MDS with the front door lock-link switch (driver-side) locked.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the BCM.
Go to the next step.
No
Go to the next step.
7
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.