Test Notes

Normal Operation
The diagnostic monitor measures the resistance across Pin 8 (Circuit 614B (GY/O)) and Pin 9 (Circuit 616 (PK/BK)) every time the ignition switch is turned to the ON position. Normal resistance across these circuits is between 0.9 ohm and 1.1 ohms. 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 code 33.

NOTE: The connectors for the air bag and air bag harness have metal spring clips that act as shorting bars. These shorting bars are built into the plastic hardshell connectors on the back of the passenger side air bag and the passenger air bag harness. The shorting bar is designed to short the terminals together when the connector is not mated. DO NOT attempt to remove the air bag shorting bar and measure the resistance of the air bag.

Possible Causes
A high resistance or open in the passenger side air bag circuit can be caused by:
1. An open circuit or high resistance in the wiring harness in Circuit 614 (GY/O), 614B (GY/O) or 616 (PK/BK).
2. An open circuit or high resistance in the passenger side air bag. DO NOT attempt a direct resistance measurement of the air bag. Follow the diagnostic procedures to determine if the air bag resistance is higher than normal.