Test Notes

Normal Operation

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 hardshell connector on the back of the passenger side air bag module. The shorting bar is designed to short the 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.

The air bag diagnostic monitor measures the resistance across Pin C2-8, Circuit 614 (GY/O) and Pin C2-9, Circuit 616 (PK/BK) 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 itself. If the resistance across these two circuits exceeds 4.0 ohms, the diagnostic monitor will flash DTC 33.

Possible Causes
A high resistance or open in the passenger side air bag module circuit can be caused by:

1. An open circuit or high resistance in the wiring harness in Circuit 614 (GY/O) or 616 (PK/BK).

2. An open circuit or high resistance in 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 air bag resistance is higher than normal.