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Home >> Ford >> 1992 >> Crown Victoria Base, AOD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Air Bag Restraint Systems >> Circuit Tests >> Circuit Test R - Code 51, Diagnostic Monitor Internal Thermal Fuse Open >> Initial Test Procedure

Initial Test Procedure

After repairing wiring for a short to ground, check AIR BAG warning light for codes. See TESTING - SYSTEM OPERATION CHECK  . If AIR BAG warning light indicates Code 51, deactivate SRS. See COMPLETE SYSTEM DEACTIVATION  under DISABLING & ACTIVATING AIR BAG SYSTEM. Replace diagnostic monitor. When repairs are complete, check AIR BAG warning light for codes with Air Bag Simulator(s) (105-00008) still in place of air bag module(s). See TESTING - SYSTEM OPERATION CHECK  . If system checks okay, reactivate SRS.

NOTE: Code 51 is displayed whenever the diagnostic monitor thermal fuse is open and no other higher priority faults exist. Code 51 is normally seen after service of a Code 13 condition. If a Code 51 exists and a Code 13 condition has not been serviced, an intermittent short to ground exists in the air bag deployment wiring. The intermittent short to ground must be located and serviced before servicing the Code 51 condition.
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