Is the concern still present?
Yes | CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Click here to access Guided Routine (BCM). |
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No | The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. |
A Single or More Than One Door Lock Is Inoperative
Refer to Wiring Diagrams Cell 117 for schematic and connector information.
Normal Operations and Fault Conditions
REFER to: Handles, Locks, Latches and Entry Systems - System Operation and Component Description (501-14 Handles, Locks, Latches and Entry Systems, Description and Operation).
Possible Cause
Fuse Wiring, terminals or connectors Door latch BCM
Visual Inspection and Diagnostic Pre-checks
Check the BCM fuse 24 (30A)
PINPOINT TEST I : A SINGLE OR MORE THAN ONE DOOR LOCK IS INOPERATIVE
I1 CHECK THE DOOR LATCH FOR BINDING
Lock and unlock the inoperative door lock using the manual door lock located just above the door latch opening.
Does the door lock and unlock?
Yes | VERIFY the BCM fuse 24 (30A) is OK. If OK, GO to I2 If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short. |
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No | INSTALL a new door latch. REFER to: Front Door Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). |
I2 CHECK THE BCM (BODY CONTROL MODULE) ALL LOCK OUTPUT CIRCUIT FOR AN OPEN
NOTICE: The following step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector. Ignition OFF. Disconnect suspect door latch. For the suspect door latch, connect:
Click to display connectors
Left Front Door Latch
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C525-7 | Ground |
Click to display connectors
Right Front Door Latch
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C609-2 | Ground |
NOTE: The BCM only supplies voltage to the actuator momentarily. It is important to monitor the test lamp while pressing the door lock control switch. While pressing the door lock control switch in the lock position, monitor the test lamp.
Does the test lamp momentarily illuminate?
Yes | GO to I3 |
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2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.