Hi
fiat brava 1.4SX P reg.
Air bag light is on permanently.
Air bag ECU number 464793640
ECU PCB: Hitachi GE216450-A

Unfortunantly Ive fallen foul of the new MOT air bag rules and being a P reg no one seems to have the right connector to read the ECU.

However, I have discovered that the airbag ECU did have some slight water damage and have cleaned it up. Even more Unfortunately a couple of components have also been damaged. One resistor and one capacitor. I can read the resistors value but the capacitor value has erased.
On the of chance that someone has a ecu apart can you confirm what value C31 is.
The capacitor is on the underside, opposite side of the board to the connector. The value should be represented by a letter and numberon top of the device which is a small square chip with silvered ends.

Hoping that with these replaced I can get airbag working properly.

Thanks
SR

Hi,
Have the exact same issue on unit 464793640 and as I took it apart and searched for the PCB#, I found this post. Mine doesn't look too bad. I read C31=A5.
Of course I'd be interested to know which other components you found to be damaged and let me know if you fixed your unit.
Thanks,
-GP

I recently had my main ECU on a 2001 Brava fixed by a company ECU testing (there are others...) - not exactly cheap but very good service.

I'm sure one of these firms can probably do the work, or at least talk to you about it. It's going to be a growing business I think.