Test Notes

Normal Operation

NOTE: The passenger side air bag module connector and air bag diagnostic monitor harness connector have metal spring clips that act as shorting bars. These shorting bars are built into the plastic hard shell connectors. The shorting bar is depressed to short circuits 29S-MA11 (OG/WH) and 31S-MA11 (BK/WH) together when the connector is not mated. Do not attempt to remove the 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 C20b-9, circuit 31S-MA11 (BK/WH) and pin C20b-8, circuit 8-MA22 (WH/VT) 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 module itself. If the resistance across these two circuits is less than 0.7 ohms, the air bag diagnostic monitor will flash Diagnostic Trouble Code (DTC) 35 on the air bag indicator.

Possible Causes
Low resistance across air bag diagnostic monitor pins C20b-9, circuit 31S-MA11 (BK/WH) and C20b-8, circuit 8-MA22 (WH/VT) can be caused by the following:
1. A faulty shorting bar may short circuits 29S-MA11 (OG/WH) and 31S-MA11 (BK/WH).
2. A short across the passenger side air bag module 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 side air bag module resistance is lower than normal.