DTC | Description | Fault Trigger Conditions |
|---|---|---|
U3000:49 | Control Module: Internal Electronic Failure | This DTC sets when the BCM has permanently shut down the output driver. The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the BCM can withstand. CORRECT the cause of the excessive current draw before installing a new BCM. |
Possible Sources
Wiring, terminals or connectors Exterior mirror assembly Pony projection lamp BCM
Visual Inspection and Diagnostic Pre-checks
Inspect the exterior mirror assembly for damage.
PINPOINT TEST C : ONE OR BOTH PONY PROJECTION LAMPS ARE INOPERATIVE OR ALWAYS ON
C1 CHECK THE PONY PROJECTION LAMP OPERATION WITH THE DOORS CLOSED
Close the doors. Press the RKE LOCK button.
Do the pony projection lamps turn off?
Yes | If one pony projection lamp is inoperative, GO to C2 If both pony projection lamps are inoperative, GO to C5 | |
|---|---|---|
No | GO to C7 | |
C2 CHECK THE PONY PROJECTION LAMP VOLTAGE SUPPLY CIRCUIT FOR VOLTAGE
Disconnect: LH exterior mirror C520 or RH exterior mirror C626. Ignition ON. Using a diagnostic scan tool, select the BCM Courtesy Puddle Step Lamps (PUDDLE_LMPS) active command. Command the pony projection lamps (Courtesy Puddle Step Lamps) ON. Measure:
Click to display connectors
LH Pony Projection Lamp
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C520-5 | Ground |
Click to display connectors
RH Pony Projection Lamp
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C626-5 | Ground |
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.