I was trying to source a rattle behind the dash on a Punto (2000 Reg). After removing and replacing the instrument panel a few times and 'gently' feeling a few of the cables near the passenger compartment fuse box, the Airbag warning light is now permanently on and the passenger side airbag warning light flashes.
About the only thing I did that was incorrect, was not disconnecting the battery negative before removing the instrument panel. But at the time it didn't strike me as a major issue.
I've subsequently removed most of the fascias that have both of the airbag cables behind and all appear to be connected correctly. Nothing too obvious.
Any suggestions? How much of the airbag system can be replaced without specialist tools or equipment? If I take it to a Fiat Dealer for testing and they say the ECU has gone, can I replace this with an ECU from a breakers yard or alternative supplier? Though I guess most ECU out of 2000 reg Punto's will have crash data in them.
I have an identical Punto (useful for troubleshooting), if I take the Airbag ECU out of this car to test, am I just going to end up with two duff Punto's?
Thanks for any advise,
Tim