Test Notes

NORMAL OPERATION
The air bag diagnostic monitor measures the resistance across Pin C2-8, Circuit 8 (W/P) and Pin C2-9, Circuit 31S (BK/W) every time the ignition switch is turned to RUN. Normal resistance across these circuits is between 0.9 ohm and 1.1 ohm. This resistance comes from the passenger side air bag module itself. If the resistance across Pin C2-8 and C2-9 is less than 0.7 ohm, the air bag diagnostic monitor will flash Code 35. If low resistance is measured across Pins C2-8 and C2-9, Diagnostic Trouble Code 35 will appear.

NOTE: The connector for the passenger side air bag module has a metal spring clip that acts as a shorting bar. This shorting bar is built into the plastic hard-shell connector on the back of the passenger side air bag module. The shorting bar is designed to short the passenger air bag terminals together when the connector is not mated. DO NOT attempt to remove the passenger air bag shorting bar and measure the resistance of the passenger side air bag module.

POSSIBLE CAUSES
Low resistance across Pins C2-8 and C2-9 can be caused by:

1. A poorly mated passenger air bag harness connector not pushing the shorting bars back into their fully-retracted positions.

2. A damaged shorting bar may short Circuits 29 (O/W) and 318 (BK/W) together.

3. A short across the passenger air bag terminals within the passenger side air bag module. DO NOT attempt a direct resistance measurement of the passenger side air bag module. Follow the diagnostic procedures to determine if the passenger air bag resistance is lower than normal.

4. A short in the wiring harness between Circuits 8 (W/P), 29 (O/W) and 318 (BK/W).