Airbag Warning Light, Fault Code: P350C ,Cannot find out what it means

[jibjc]

For a few years now my airbag warning light and service light kept periodically coming on but went off when I wiggled the wires under the passenger seat.
Last winter wilth all of the rain the sunroof leaked and there was about 3 inches of water in the foot wells for about a week, before I managed to take the sunroof off and seal it up.
I think since then the Airbag warning light will not turn off.

I have cut out all of the connection blocks under both seats and soldiered the wire together but the light will still not go out.
I got a friend to plug in his OBD2 reader and it showed a few faults in the memory about the lose connector wires under the seats which he cleared off.

The only currently active fault says P350C- please refer to the service manual.

I have searched all over the internet for this code but it does not seem to exist!

Does anyone know what this code could mean?

Is it worth buying a new airbag ECU or getting it send away for a reset in the hope that is will fix the warning light?

I have taken out the airbag ECU and it doesn’t look like it has gotten wet.

I took out the side impact sensors under the seats to have a look at them and they seemed fine.
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My MOT is due and since March this is an MOT fail so I really need to sort it fast.
I don’t want to have to pay a garage £500 to fix something that I feel so close to sorting out myself.

Any help would be great
Thanks
Jib

 

[M26]

Which OBD2 reader are you using?

Generic readers only read engine management lights and cannot access ABS or Airbag ECU's.

A code starting in a P is usually engine related so would generally have nothing to do with an airbag fault. IIRC, Renault airbag codes start with a DF.

You will need to find somebody who has a code reader that can access the airbag ECU. The Autel FR704 is a good handheld device, or find someone local on here who has Clip.

 

[jibjc]

Thanks for the advice.
Yes I tried with my cheapy £10 OBD2 reader first and couldn't see any air bag info.
That is why I took it to my friend who is a mechanic and has a £200+ OBD2 (not sure which one, it was a big Orange one) this could read the Airbag warnings as I have said in my post , he even cleared all the old warnings out of the memory but still the airbag light is on with the only active code P350C.