Airbags MX 5

[Rossco196x]

Hi i have the following fault codes on my Mx 5 Mk 3 relating to the RCM (air bag module)

Any idea where to start. Some one had covered the SRS light with tape

On Demand Self-Test has been started
(WARN) [14:24:01.451] Test completed, found DTCs: B1047, B1055, B1058, B1059

DTC B1047

Code: B1047 - Side Airbag Cross Link To Another Firing Loop, Front Driver Side

Module: Restraint Control Module===END DTC B1047===

DTC B1055

Code: B1055 - Side Airbag Cross Link To Another Firing Loop, Front Passenger Side

Module: Restraint Control Module===END DTC B1055===

DTC B1058

Code: B1058 - Airbag Cross Link To Another Firing Loop - Loop No. 2, Front Driver Side

Module: Restraint Control Module===END DTC B1058===

DTC B1059

Code: B1059 - Airbag Cross Link To Another Firing Loop - Loop No. 2, Front Passenger Side

Module: Restraint Control Module===END DTC B1059===

[Mac-5]

Have you tried disconnecting the battery to re-set the ECU?

[Rossco196x]

Yes !

Where can you find reliable advice on SRS faults, i've spoken to numerous experts about SRS faults but still no one is able to offer credible advice

[Evoluzione]

I would start by looking underneath the seats. There is a huge white multiplug block where the separate plugs for various things go through. Side airbag (which lives in the side of the upper section of the seat) can be traced through there and actually accessed by unzipping the seat at the rear. Seat belt warning light, heater and pressure pad (passenger side) also go through that plug.
There are plugs within a plug (you'll see what I mean) and pulling the main plug off its anchor and the smaller plugs out of it is very tricky as the plastic is hugely brittle. It's possible someone already found that out.....

[Rossco196x]

Hi I've had a look at the wiring and can't find any faults. I can read the resistance of all the airbags and the pre tensioners and side airbags also aren't showing any faults. There is the possibility that the airbag SRS from Fleabay (Part No. W2T80371) is incorrect and has a different pin due to not being compatable with a car fitted with side (seat) airbags. This is what we think but Mazda don't freely make this detail. available

Does anyone know if i need Part No. W2T80372 so i can clear the fault codes oncve and for all

Thanks

[Rossco196x]

Found the fault..

Wrong airbag module supplied with the airbag kit , It wasn't compatable with a car fitted with side (seat) airbags. I replaced N123 module with N121 and all the fault codes cleared

[anonymous-user]

Rossco196x said:

Found the fault..

Wrong airbag module supplied with the airbag kit , It wasn't compatable with a car fitted with side (seat) airbags. I replaced N123 module with N121 and all the fault codes cleared

Thanks for updating, a future petrolhead will thank you!

[Rossco196x]

Many thanks for your comment, it does get some what annoying when your trawling for clues and you never know what the root cause was. Airbag faults are never easy to trace and resolve especially when a person has given up and sold the problem on

Ross