Test Notes

Normal Operation

NOTE: Diagnostic Trouble Code (DTC) 14 will only flash while a short to ground is present.

The air bag diagnostic monitor measures the voltage at pins 2 and 6 of air bag diagnostic monitor connector C1. The normal voltage at these pins is approximately 9-11 volts when the ignition switch is ON, or battery voltage when the ignition switch is in the LOCK position.

If the air bag diagnostic monitor detects that the voltage at pin 2 or 6 has dropped to 5 volts or less, the air bag diagnostic monitor will flash DTC 14 on the air bag warning indicator to indicate a short to ground. When flashing DTC 14, the air bag diagnostic monitor blows its internal thermal fuse. This disables the air bag deployment circuit. If the voltage at pins 2 and 6 returns to normal, a DTC 51 will be present due to the open thermal fuse. Refer to Pinpoint Test T, DTC 51.

Possible Causes
A drop in voltage at air bag diagnostic monitor pins 2 and 6 can be caused by:
- A short to ground within the wiring harness on circuits 615 (GN/R), 616 (BL/Y), 617 (BK/R), or 619 (BK/BL).
- An internal short to case ground within either of the radiator primary crash front air bag sensors.