Code 51 Sequence of Events

Code 51 Sequence of Events
1. Short to ground occurs on one or more of the circuits shown in heavy lines in the schematic.
2. The air bag diagnostic monitor recognizes the shorted wiring and flashes out a diagnostic trouble code 13 and sends a signal to the internal thermal fuse, causing it to blow.
3. The air bag diagnostic monitor will continue to flash code 13 while the short to ground is present. If the short to ground goes away, a diagnostic trouble code 51 appears.
4. The air bag diagnostic monitor only flashes a code 51 when the thermal fuse is blown and the short to ground is not present. Do not replace the air bag diagnostic monitor until the short to ground has been located and serviced.