Fault Repairs and Fault Erasing Information
3. Fault RepairsAttention: Before beginning repairs on faults found in the airbag system, first disconnect the battery negative post and insulate, then wait for 20 minutes.
A. Correct the fault by either correcting faulty connections or replacing defective parts.
B. Reconnect battery.
4. Erasing Fault Memory
A. Switch off ignition.
B. Connect locally made tool between pin 2 of airbag control unit test plug and chassis ground.
C. Press micro-switch to apply chassis ground to pin 2 of airbag control unit test plug.
D. Switch on ignition. Keep micro-switch pressed (giving ground) for 5 seconds.
E. Release micro-switch for 5 seconds: (no ground)
F. Apply micro-switch again for 5 seconds (giving ground) and then release.
G. Switch off ignition.
Note: It is extremely important to be precise to the second. The clock on the vehicle dash panel works well for this purpose.
5. Checking Fault Erasing
A. Switch on ignition:
Airbag light should go out after approximately 5 seconds and stay out. If not, repeat diagnostic procedure starting at 1.
Note: If the airbag light comes on again immediately after the 5 second lamp test, the fault has not been erased. In this case, repeat erasing procedure in Step 4.
A time of approximately 10 seconds is needed for the airbag control unit to acknowledge a fault from the time the fault occurs. Because of this, watch the airbag light for approximately 30 seconds to be certain no other faults have occurred.
Fault Code Table
Hex code numbers refer to repair instructions regarding specific faults.
The term "leak" in this text refers to electron travel or trickle across or through damaged wire insulation or corrosion to chassis ground or battery positive.
Note: Ignition pill circuit 1: driver side airbag Ignition pill circuit 2 and 3: passenger side airbag