jchinelli

1992 964 C2 cab......recently diagnosed with the air bag light on--mechanic wanting to replace the unit for 4K!!!

toms930

Does your mechanic have a Bosch Hammer tool or Durametric too to scan for the error code? I used a Durametric tool to diagnose my airbag light issue. My error code indicated code 49, a break in the ignition Pill circuit 1. The fault was a bad connection between the clock spring and airbag module. I cleaned the connector contacts by mating and demating the connector a few times. I cleared the fault using the Durametric tool. Airbag system now operates normally (Airbag light goes out after the 1st 5 seconds after ignition turn-on.)

Deserion

Did your mechanic give you a specific trouble code for the airbag? Without going into specifics it's easy for him to say you need to drop that much coin to fix. Like toms930 said, with a Hammer or Durametric you can see the exact issue and go from there - likely for far, far less than $4000.

Rocket Rob

+1 - Learn what the fault codes are. I've had intermittent airbag faults over the years. Some were cleared by cleaning the crash sensor connectors. Others were cleared by replacing the clock. The Airbag circuitry goes through the clock and they have been known to have solder joints fail over time. Some folks here have successfully, taken their clocks apart and resoldered them.

P-daddy

I had the clock resoldered and cleaned the crash sensors in the frunk. No more codes.

Spyerx

The failures of the computer modules themselves unless they got wet isn't very common. (airbag, abs, DME, CCU, spoiler). It's usually a sensor or something adjacent to the system.

hpb

I have had to use electronic contact cleaner (just get from hardware store) and disconnect the crash sensors and soak the contacts. You will need a way to clear the codes (Durametric can do it).

Had to do this twice in last five years.

Bruce Kaiser

Where is the air bag module on a 964?

budge96

Module is mounted center of the front firewall between the driver and pass seats under dash, not certain if wires will unplug on 964 can't recall ...
Dealer reset is easiest...Bert