Another Airbag thread

[machvingtsun]

So I think I need a new Airbag ECU. Airbag light is on and wont clear with a reset.

Heres the AlfaDiag Error Display:

http://i125.photobucket.com/albums/p...aDiagFault.jpg

Have checked all connections to and from the Airbag ECU and all seem sound.
So does anybody know anything else I can do before replacing the airbag ECU?

[CJO]

If it will not clear with a reset then there is a fault with one of the bags the ECUs rarely die unless they have been badly abused.

[machvingtsun]

Originally Posted by CJO

If it will not clear with a reset then there is a fault with one of the bags the ECUs rarely die unless they have been badly abused.

I thought the error code would point to one of the airbags with a fault in it, if an airbag was faulty.

The error code is 01, failed component code: ECU, Intermittent fault present.

[CJO]

Which software and cable are you using ?

If it is Alfadiag it might be worth sending a PM to Rearbear

[machvingtsun]

Ive got the kkl interface and Im using Alfadiag.

[156Chris]

It may just be the connectors to the ECU, take them off give them a clean with some electrical contact cleaner and then retry clearing the codes ...

[machvingtsun]

So I got contact cleaner and went at the Airbag ECU, after disconnecting the battery and waiting 10 mins.
I cleaned the connector and its power connector plugged it all back in and went to clear with no succes.

So any ideas of what to try next?

[156Chris]

Check the earth point ... I can't believe it's the ECU itself, when microchips go they stop working altogether ....


... alternatively contact IainFm and see if he's got a spare ECU lying around ... (you never know he might even do a sale or return if you're lucky) ...


alternatively ... remove the warning bulb

[machvingtsun]

Right will try that. Im going do continuity tests on the cable connecting airbag ECU to the other ECU as well. Thanks for the advice.

[rarebear]

the crash sensor is knackered ! been there done that ! I bought one from a breaker in the UK, take care that you use the same model (check the number)

[SEARs]

the 'crash sensor' that the one located under the centre console?

[rarebear]

Originally Posted by SEARs

the 'crash sensor' that the one located under the centre console?

YES ! 3 bolts

these are the type numbers in use

60625180 68HC11E9
60631206 68HC11E9
60655033 04 305536 08AB32
60656767 68HC11E9
60658009 04 305536 08AB32
60663040 04 308087 08AB32
60663943 04 311020 08AS20
60664962 04 305536 08AS20
60665492 04 312040 08AB32
60669249 08AS20
60669250 04 313049 08AS20
60675876 04-320290 08AS20
60675876 04-320290 908AS60
60675880 04 320291 08AB32

[machvingtsun]

Excellent, thanks for the info rarebear.

Heres my Airbag ECU:
http://i125.photobucket.com/albums/p...Photo-0068.jpg

So I presume I need one with the exact same code as in: 60669250 04 313049

[machvingtsun]

I have browsed ePER on the Autolusso site and found the following airbag control unit codes:

60675878
60665492 504
60669249 504
60663943 505
60675876 505
60675880 614

Is there anyway of finding out what units are are fitted to which model, like a list with the chasis code and the Airbag control unit model fitted?

[rarebear]

thats hard to tell, Alfa uses these things at random, you better try to get the exact same as in your car,
all these things have special circuits for side airbags curtain airbags etc does you car only have 2 airbags ?

[rarebear]

my car, 156 selespeed 1999, has the 60658009 thats a steering wheel and passenger airbag, the simpliest.
the airbag itself is Allied MY97

[machvingtsun]

My car has the Driver head, passenger head, driver side, passenger side airbags. Pretensioners as well. Its an 2001 1.8 TS CF3 manual.

[rarebear]

you better make sure you get the right one !!!!

[Tont]

I need also a new Airbag ECU. Mine is 60675880.
Is it just plug-and-play when I get ECU from breaker with same part number?

[rarebear]

Originally Posted by Tont

I need also a new Airbag ECU. Mine is 60675880.
Is it just plug-and-play when I get ECU from breaker with same part number?

Yes, but you need a reset with Alfadiag