Airbag warning light, intermittent.

[b1grlm]

Hi all,
I'm new to this forum as I have recently brought a Twingo Cup 133 that's 3 years old and now out of warranty. It's only covered 4,400 miles, and the ECU was replaced in the last weeks of the warranty.

Since the ECU was replaced the airbag warning light comes on some time during most journeys. I have removed and hard wired the connector under the pass anger seat. I took it to Renault last week and they need it in for a day to find the fault. Its on the drivers side, either the airbag, airbag Ecu or steering connector. After the dealer had looked at the car the light did not come on for a day, so I'm thinking its a connector.

Can you tell me where and how to access the Ecu and airbag Ecu.

Thanks!

 

[singlespeed]

ECU replaced... Which one, as theres bloodly loads of them.
Heres all the computer stuff on the network. Pages 8-9 show roughly where they are.
https://www.dropbox.com/s/bole5ngxf... - 8 Electrical equipment fault diagnosis.pdf

There will be a connector under the drivers seat, the same as the one you have hardwired on the passenger side which would be worth a wiggle or hard wiring also.

 

[b1grlm]

Presumably main ECU as hazard lights kept coming on after 10 mins of driving, not ideal.

Thanks for that I will take a look.

 

[singlespeed]

Presumably main ECU as hazard lights kept coming on after 10 mins of driving, not ideal.

Thanks for that I will take a look.

UCH (stands for something in french) is the body ecu, which would be the one and, looks to be near the airbag ecu

 

[oscar]

unit centrale habitacle or some crap. body control unit in other words! it's an absolute pain in the backside