Yes | GO to D4 |
|---|---|
No | REPAIR the circuit. |
D4 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
Disconnect and inspect all the BCM connectors. Repair:
corrosion (install new connector 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. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present.
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). |
|---|---|
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. |
The Anti-Theft Alarm Horn Sounds Continuously
Refer to Wiring Diagrams Cell 117 for schematic and connector information.
Normal Operations and Fault Conditions
REFER to: Perimeter Anti-Theft Alarm - System Operation and Component Description (419-01A Perimeter Anti-Theft Alarm, Description and Operation).
Possible Causes
Wiring, terminals or connectors BCM
PINPOINT TEST E : THE ANTI-THEFT ALARM HORN SOUNDS CONTINUOUSLY
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
E1 CHECK THE ANTI-THEFT SECURITY HORN VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
Ignition OFF. Disconnect BCM C2280C. Ignition ON.
Does the anti-theft alarm horn continue to sound?
Yes | REPAIR the circuit. |
|---|---|
No | GO to E2 |
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.