Ford Puma airbag controller repair/replacement

[Pumalhd]

My otherwise excellent 2000 Puma 1.7 (owned from new) is facing the scrapyard because of a B1342 fault in the airbag controller (YS6T 14B056 AC / Bosch 0 258 001 348). I have removed it and taken in to a specialist (where I live in Germany), who was not able to repair it as he says the microprocessor has failed and is no longer available. This particular module seems to be very difficult to find second-hand. Other models that look the same structurally but with different codes (e.g YS6T 14B056 AD / Bosch 0 285 001 392 which apparently replaced the AC / 348 version sometime in 2000) are available, but the specialist told me these will not work and I have to have exactly the same model. Does anyone have any suggestions? Can the later model be successfully coded for the car?

[Jazoli]

I’d imagine the fiesta of the same year will have the same controller with a slightly different part number, have you checked this?

[Pumalhd]

I think the same modules were fitted to Fiestas and Pumas; the problem is, they kept updating it. From a post on the Puma forum at least 4 different types were used between 1997 and 2000 (and split between single and double airbag). I'm trying to find out if any are interchangeable with my module with or without recoding. They were probably readily available a few years ago when many were being scrapped, but those days are gone.

[LordLoveLength]

You could try asking on mhh auto forum - that’s where the guys who reverse engineer and code modules hang out.

[Pumalhd]

To close this, PumaBuild in Aldridge were able to supply me with an identical tested used replacement which solved the problem. (I never did find out if other models would work.)

[drdino]

You could have used the module with the -AD suffix, although it might have required a configuration. Prefix is the carline, the middle is the "part" and the suffix gives you a variant/level. AC->AD is most probably a software update, if it were a different variant you'd see something like -B* (providing the release of the part was done correctly).