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Vehicle Security Module Diagnostic Trouble Code (DTC) Index

WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
VEHICLE SECURITY MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B1217 Horn Relay Coil Circuit Failure Vehicle Security Module Go To PINPOINT TEST A: THE HORN DOES NOT SOUND .
U1950 UBP Communication Bus Fault Vehicle Security Module Refer to MODULE COMMUNICATIONS NETWORK .

For a complete list of multifunction module DTCs, refer to MULTIFUNCTION ELECTRONIC MODULE .