Technical Airbag ECU woes

[Steph3071]

I've got a 2012 Punto that decided to light up all the airbag lights while driving.
Next time I started it the dash tells me no start/stop, no fuel cutoff, flashing odometer, and all the airbag related lights illuminated.

I removed the centre console and checked the airbag ECU connectors for any signs of corrosion and they are all clean and shiny.

No signs of moisture in the ECU itself.

ECU numbers are

51897787

A2C53332208

06110811K

Does anyone have a wiring diagram for this so I can check for correct voltages?
Is there a specific fuse that could have blown?

I'm in France so highly unlikely I'll find a member over here that has MultiScan.

Based on what I've read about these symptoms, a scan is unlikely to help as it's possible it won't even be able to communicate with the airbag ECU.

 

[bugsymike]

I've got a 2012 Punto that decided to light up all the airbag lights while driving.
Next time I started it the dash tells me no start/stop, no fuel cutoff, flashing odometer, and all the airbag related lights illuminated.

I removed the centre console and checked the airbag ECU connectors for any signs of corrosion and they are all clean and shiny.

No signs of moisture in the ECU itself.

ECU numbers are

51897787

A2C53332208

06110811K

Does anyone have a wiring diagram for this so I can check for correct voltages?
Is there a specific fuse that could have blown?

I'm in France so highly unlikely I'll find a member over here that has MultiScan.

Based on what I've read about these symptoms, a scan is unlikely to help as it's possible it won't even be able to communicate with the airbag ECU.

Ideally a good diagnostic tool is needed to read the codes whether MES or like I have used a Snap On Zeus Diagnostic tool from my friends garage.
It will save you going the wrong route. it is very easy to damage the ABS BCM (Body Control Module) when the problem can be something much cheaper to fix.
Funny enough one of my daughters bought a 2010 Fiat Punto Evo with air bag light on, previous owner said it was the passenger seat occupancy sensor which he had tried to repair, he mentioned the part was around £100 odd at dealers.
When I checked it out I found the BCM was damaged as well, caused by his poor repair of the seat sensor (his repair bypassed the resister in the circuit so shorted the BCM) .
Long story short I got a brand new old stock BCM for £149, a cheap Chinese seat sensor for £6 without a resister and soldered the original resister into the circuit deleted all the errors then ran a "proxi alignment" program so the BCM could talk to everything and she has run the car for the last two years OK.