MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Body & Paint

Locks, Latches and Entry Systems

501-14 Handles, Locks, Latches and Entry Systems

2016 MustangReference 1,378 / 6,619HTML edition
← Chapter contentsProcedure contents

H1 CHECK FOR BCM (BODY CONTROL MODULE) , DDM (DRIVER DOOR MODULE) AND PDM (PASSENGER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON. Using a diagnostic scan tool, perform the BCM self-test. Using a diagnostic scan tool, perform the DDM self-test. Using a diagnostic scan tool, perform the PDM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?

H2 VERIFY THE OPERATION OF BOTH DOOR LOCK CONTROL SWITCHES

Press the lock and unlock buttons on both door lock control switches while observing the door lock operation.

Does any door lock operate?

Yes

GO to H3

No

GO to H4

H3 CHECK IF THE LOCKS OPERATE IN ONLY ONE DIRECTION

Press the lock and unlock buttons from the driver door lock control switch and then the passenger door lock control switch while observing the door locks.

Are all the door locks inoperative from both switch positions (lock and unlock) of either door lock control switch?

Yes

GO to Pinpoint Test K

No

GO to Pinpoint Test J

H4 CHECK THE BCM (BODY CONTROL MODULE) DOOR LOCK GROUND CIRCUIT FOR AN OPEN

Ignition OFF. Disconnect BCM C2280C. Measure

Click to display connectors

Positive Lead

Measurement / Action

Negative Lead

C2280C-10

Ground

Is the resistance less than 3 ohms?

Yes

GO to H5

No

REPAIR the circuit.

H5 CHECK THE ALL DOOR LOCK CIRCUIT FOR AN OPEN

Disconnect Left Front Door Latch C525. Measure:

Click to display connectors

Positive Lead

Measurement / Action

Negative Lead

C2280C-35

C525-7

Is the resistance less than 3 ohms?

Yes

GO to H6

No

REPAIR the circuit.

H6 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.

Source reference 1378

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.