OBD2 Scanners to rest airbag fault warning

[Folkranger]

I've trawled through so many posts on airbag faults, some mentioning scanners but almost all saying send to Crashdata so I'm asking specifically about members experiences with Scanners to reset airbag warnings.

My 2014 Rapido on Fiat 2.3 developed a fault last year. I assume this might be because I had not connected to mains (which I usually do) thinking the solar panel would keep it charged.

It seems I have 3 main options:
1. £600 ish Get the main dealer to repair/replace (but probably out of stock)
2. £90 ish including postage - Send to Crashdata and hope mine is one of the 70% they can fix
3. £110 ish Buy a scanner/reset tool, hope I know what I'm doing.

Any thoughts?

 

[Wabs]

Personally, I would change the battery anyhow, at your 12.3 it’s virtually flat and probably buggered, a defunct battery will cause a lot of problems with the ICU. ( ask me how I know). Lol

 

[Wabs]

Try batterymegastore,,that’s where I got mine from,,,good hunting

 

[Gellyneck]

To conclude, the module was returned by Crashdata the same hour they received it (Sounds like good business). The fault B0100 was due to low or high battery or charger voltage. All fixed and warning lights gone. Hope it lasts. I had considered changing my 7 year old battery but it seems ok (would hate to have to repair again). Total cost £70+VAT + postage to Liverpool = £89.

Pleased to hear you're fixed but I'd be seriously considering changing battery as it must be near \ past usable lifespan.

 

[EuroTrotters]

I carry a mid range £200 model around I will get you the model if you like? Worth every penny.

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[Folkranger]

If you disconnect the battery to change it will it trigger the ecu fault again?

 

[Wabs]

Only if it hasn’t a full charge,,I really feel you need to change the battery,,I had the same problem months ago

 

[Gellyneck]

If you follow the correct process it's not a problem.
After getting our airbag ecu reset by Crashdata and there conclusion was low voltage on the battery despite it seeming to hold charge pretty well decided to swap it out.
I've attached a pdf I made up (plagiarised from, I think, Techno ) 'cause where I was doing the job had no internet access!

 

[Folkranger]

Battery on order. Surprised to find Amazon is cheapest.

 

[Folkranger]

If you follow the correct process it's not a problem.
After getting our airbag ecu reset by Crashdata and there conclusion was low voltage on the battery despite it seeming to hold charge pretty well decided to swap it out.
I've attached a pdf I made up (plagiarised from, I think, Techno ) 'cause where I was doing the job had no internet access!

I'm surprised they told you it was low battery as my report simply said the B0100 fault was caused by either high or low voltage from the battery or charger.

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[SpeedyDux]

I'm surprised they told you it was low battery as my report simply said the B0100 fault was caused by either high or low voltage from the battery or charger.

It is more likely to be low voltage. Or maybe too much differential voltage. With an older battery, even if it is capable of cranking the engine enough to start, the voltage drop while drawing high current for cranking + heating glow plugs will be very significant. The voltmeter showed a drop from 12.6v to under 10v; then, when the engine got going the charging voltage quickly went up to 14.3v. I suspect that transient low voltage during starting after 10 days non-use, quickly followed by higher charging voltage, caused my airbag ECU to go SNAFU.

Only a theory, mind you. 'Tis FIAT witchcraft.

 

[Gellyneck]

It is more likely to be low voltage. Or maybe too much differential voltage. With an older battery, even if it is capable of cranking the engine enough to start, the voltage drop while drawing high current for cranking + heating glow plugs will be very significant. The voltmeter showed a drop from 12.6v to under 10v; then, when the engine got going the charging voltage quickly went up to 14.3v. I suspect that transient low voltage during starting after 10 days non-use, quickly followed by higher charging voltage, caused my airbag ECU to go SNAFU.

Only a theory, mind you. 'Tis FIAT witchcraft.

The battery I swapped out showed 12.7v at rest but dropped to 10.4v when cranking and as you say increased when charging (??v).

 

[Folkranger]

that's the new battery in. Very easy, just needed a couple of lollipop sticks as the clamp was quite loose on this one.

 

[Gellyneck]

Difficult to see but did you remove the vent hole plug and fit the vent pipe that should have been on the original battery, ground end?

 

[James-Alex]

One thing to be aware of with Crashdata is that it’s an 0800 number and my phone deal does not cover them so a long conversation can be expensive, better to

You can download an app that allows use of inclusive minutes. 0800 wizard it’s called. Never pay for a free phone call on mobile again

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[Folkranger]

Difficult to see but did you remove the vent hole plug and fit the vent pipe that should have been on the original battery, ground end?

Yes, thank you

 

[Christy]

There is insufficient evidence to convince me that an obd2 reader will definitely solve my issue so I'm going the Crashdata route. Only thing I'm wondering is it worth replacing a 7 year old battery. It's reading 12.3v and 12.5 volt with ecu connected. Seems a bit low to me. Any thoughts?

my friend has an OBD reader but could not reset mine so I sent it to Crashdata. Service was excellent. Worked for a while then about 6 months later it has gone again. Its not the battery as that is new and pretty much on permanent hook up. I contacted Crashdata but they said i would have to pay the full fee again.

I don't want to have to do this each year I need an MOT. It seems a shame that there is not some software out there that can reset these things at a reasonable price. Not that I want to put Crashdata out of business.

 

[steve69]

Wouldn't it be easier & cheaper to just stick a piece of black insulating tape over the warning light?

 

[Gellyneck]

Wouldn't it be easier & cheaper to just stick a piece of black insulating tape over the warning light?

Only up 'til it needs an MOT.

 

[Christy]

Sorry Dumb question. I have just purchased an Autel AP200 OBD scanner. Plugged it in and now cannot unplug it! Is there some sort of technique or is it just brute force?

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[Phill D]

Sorry Dumb question. I have just purchased an Autel AP200 OBD scanner. Plugged it in and now cannot unplug it! Is there some sort of technique or is it just brute force?

it has a press point in the center bottom of the plug. can be a real pig to get off on some. i removed the piece of plastic clip on the one i have so it slides on and off easily.

 

[Christy]

Thanks