F 250 4WD Pickup V8-7.3L DSL Turbo VIN K (1994)
The diagnostic monitor measures the voltages at the diagnostic monitor connector pins. When certain air bag deployment circuits are shorted to ground,
the system may become susceptible to unwanted deployment of the air bags. The diagnostic monitor will sense a short-to-ground on any air bag
deployment circuit and if a short is detected, will open the diagnostic monitor's internal thermal fuse. Blowing this fuse removes all power from the air
bag deployment circuits. While the short-to-ground exists, the monitor will flash Fault Code 13 or 14 depending where the short is. If the short-to-ground
is intermittent and temporarily corrects itself, the diagnostic monitor will flash Fault Code 51. Refer to Figures 5 and 6.
If the short-to-ground returns, the higher priority Codes 13 and 14 will be flashed instead of 51. The diagnostic monitor senses a short-to-ground on any
of these circuits and helps prevent unwanted air bag deployment by opening the diagnostic monitor's internal thermal fuse.
If the air bag indicator is flashing Code 51 and a short-to-ground has not been serviced, this means an intermittent short-to-ground exists in the air bag
system. The diagnostic monitor should only be replaced after service of the short-to-ground has been completed.
