Porsche 996 Air Bag Error Codes 85 & 31

Porsche 996 Air Bag Error Codes 85 & 31

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jrbarnett

Original Poster:

25 posts

174 months

Friday 17th May
quotequote all
Hi all.

I have a 2002 Porsche 996 C4. The airbag light is on. I've taken it into a local diagnostic centre to check the error codes (£45 to plug in to the OBD).

The error codes are 85 (Side Airbag Sensor, driver - Inactive) & 31 (Ignition Circuit - Side Airbag, Passenger - Inactive).

I am reading on forums this could be the seat belt receiver error.

Questions please

1) How do I know which side to replace - Driver or Passenger?

2) If I replace the receiver, will the airbag light go out automatically or is another reset needed? ( I could be chasing my tail here as I won't know if I've fixed the problem unless I keep paying £45 each time).

3) Has anyone replaced theirs with the inexpensive aftermarket generic ones?

Pertinent & helpful replies appreciated.