Airbag Light

[gjb0535]

My airbag light on my 98 a4 2.5tdi quattro is on. The fault code I have is

01222 Crash Sensor Airbag passenger side G180

44-00 short circuit.

I have disconnected the wires under the passenger seat (red plug one wire and yellow plug 2 wires. The terminals were clean. I reconnected them and used a cable tie to prevent any movement of the connectors. Tried a reset and the airbag light is still shown same.

I would appreciate some advice on this.

thanks

[kenney]

01222
Crash sensor, passenger's side airbag (lateral acceleration sensor) -G180 short circuit
Short in wiring to positive or earth.
Crash sensor defective.
Control unit for airbag -J234 defective.
Fault finding according to current flow diagram
Current Flow Diagrams, Electrical Fault-finding and Fitting Locations binder
Replace crash sensor -G180.
Replace control unit for airbag -J234.

[gjb0535]

Good News

I removed the seat ns and lifted the carpet. The ns off the car had water ingress.

The shock sensor mounting bolts and connections were all rusty. I dried the car out and cleaned up the bolts and terminals.
Used Vagcom to reset the ecu.
The air bag light has now cleared. I have left the carpet out whilst I identify were the water came from. I removed the nsf and nsr door seals and re sealed them , applied a pressure washer around the doors and as now it appears watertight.

Thanks for your help.

[lonky]

sounds like the drain holes in the plenum chamber are blocked.

remove battery, and clear them. ( also often one under brake servo)

[gjb0535]

Ill try that, thanks for the advice.