No | REPAIR the circuit. |
|---|
I3 CHECK THE BCM (BODY CONTROL MODULE) UNLOCK OUTPUT
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. For the suspect door latch, connect:
Click to display connectors
Left Front Door Latch
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C525-8 | Ground |
Click to display connectors
Right Front Door Latch
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C609-1 | 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 unlock position, monitor the test lamp.
Does the test lamp momentarily illuminate?
Yes | INSTALL a new door latch. REFER to: Front Door Latch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). |
|---|---|
No | GO to I4 |
I4 CHECK THE BCM (BODY CONTROL MODULE) UNLOCK OUTPUT CIRCUIT FOR AN OPEN
Disconnect BCM C2280C. For the suspect door latch, connect:
Click to display connectors
Left Front Door Latch
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C525-8 | C2280C-27 |
Click to display connectors
Right Front Door Latch
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C609-1 | C2280C-32 |
Is the resistance less than 3 ohms?
Yes | GO to I5 |
|---|---|
No | REPAIR the circuit. |
I5 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
Disconnect and inspect all the BCM connectors. Repair:
corrosion (install new connectors or terminals - clean module pins) damaged or bent pins - install new terminals pins pushed-out pins - install new pins as necessary
Reconnect the BCM connectors and make sure they seat and latch correctly. Operate the system and determine if the concern is still present.
Is the concern still present?
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.