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#1614952 - 24/01/2018 21:55 Airbag Light On - Error Code help!
Jay1984 Offline
Club member 1547
Making a profit

Registered: 22/06/2011
Posts: 204
Loc: Living the dream
Hi All,

Hope you're all well!

Just after a bit of advice. I'm trying to get my Airbag light off (the right way - fix the problem, not remove the bulb). I've finally managed to get the fault codes read and I've tried to clear them. All codes (i.e. low voltage) have gone with the exception of one. I've used a couple of different software systems and the code is translated as follows -

05 - Passenger Airbag Exclusion Control Light - Open Circuit / Short Circuit at Ground PRESENT 207.

0005 - Failed Component Code: Passenger AirBag Inhibition Light
Error Code Status : Error Present

I'll try to attach photos below - hope they work...

click to enlarge

click to enlarge

click to enlarge

...and just out of curiosity, anyone know what this green fuse is for? Cos mine looks a bit fried!

click to enlarge

Any advice to get rid of this light would be much appreciated.

Cheers,

J


Edited by Jay1984 (24/01/2018 22:56)

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#1614966 - 25/01/2018 10:15 Re: Airbag Light On - Error Code help! [Re: Jay1984]
williamsdad Offline
Club member 1619
Discoverer

Registered: 29/06/2009
Posts: 48
Loc: Fleet, Hampshire
do you actually have a passenger airbag? i think i read on fb that you have the dials off a plus in your car... could it be that the airbag ecu is looking for an airbag that isnt there?
_________________________
2000 20VT Plus in Electric Blue

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#1614967 - 25/01/2018 10:46 Re: Airbag Light On - Error Code help! [Re: Jay1984]
Jay1984 Offline
Club member 1547
Making a profit

Registered: 22/06/2011
Posts: 204
Loc: Living the dream
Hi, yes the car does have a passenger airbag just above the glovebox (also has the switch inside the glovebox to de-activate the airbag). The dials were replaced from standard to Plus dials but the airbag light had been on prior to the swap. The previous owner had removed the airbag bulb though.

Had a bit of help on the FB post and I’ll look into this amber airbag light that is apparently supposed to illuminate briefly when you switch the car on. It should also illuminate constantly when the passenger airbag is deactivated using the switch in the glovebox. Mine doesn’t illuminate at all.

I’ll see if I can locate the correct bulb and use my multimeter to establish whether any power is being sent here. If not, possibly a bad connection or broken wire somewhere.

Thanks for the response. Appreciate any pointers I can get!

Jay

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#1615046 - 26/01/2018 22:07 Re: Airbag Light On - Error Code help! [Re: Jay1984]
mr_nobut Offline
Club member 993
Making a profit

Registered: 06/05/2009
Posts: 307
Loc: bristol
Hi jay, I had a similar fault on my airbag when I bought the car.

Someone had taken the airbag bulb out. If you do this and you happen to have a model with a switch in the glovebox, it will cause the 'passenger airbag deactivated' light (orange light on the far left) to constantly flash. Someone had even put black tape over this as obviously couldn't sort it out.

My fault turned out to be a dodgy connector under the drivers seat!! Can't remember how the seat connector triggers the airbag though!! Just fiddling with connectors and a reset sorted it, think I was lucky!!!
_________________________
inky goodness!!

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#1615048 - 26/01/2018 22:15 Re: Airbag Light On - Error Code help! [Re: Jay1984]
markopolo Offline
Club member 1647
On a journey

Registered: 21/07/2014
Posts: 183
Loc: UK doncaster
The green fuse is for one of the radiator fans I think.
30 or 40 amp..
There's 2 different size fans on radiator if I remember correctly.

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#1615094 - 28/01/2018 16:06 Re: Airbag Light On - Error Code help! [Re: Jay1984]
Jay1984 Offline
Club member 1547
Making a profit

Registered: 22/06/2011
Posts: 204
Loc: Living the dream
Hi all,

Quick update - I was advised to check the amber light (as mentioned above). Took the dials out and low and behold, missing bulb! Replaced it and the amber light now comes on, flashes, and goes out (also tested that it does stay on solid if I switch the passenger airbag off).

Hooked up the laptop and finally managed to clear all fault codes!

click to enlarge

However, the little red light of annoyance has remained illuminated!

click to enlarge

Can anyone think of any reason that the red airbag light would stay on even after all the fault codes have been cleared? I’ve started it about 10 times now just in case it needed to see no faults re-occurring, I’ve also scanned the ecu since and still showing no faults.

All thoughts and recommendations would be much appreciated!

Thanks,

Jay

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#1615099 - 28/01/2018 18:12 Re: Airbag Light On - Error Code help! [Re: Jay1984]
DaveG Offline
Club member 311
Forum is my life

Registered: 16/12/2005
Posts: 6750
Loc: Lightwater, Surrey, UK
Have you tried the old reset trick of simply disconnecting the battery and waiting a while, joining the +ve and -ve leads together, reconnecting and trying again?
_________________________
2000 Pearl White Plus & 1996 Portofino 20vt
1985 & 2016 2017 Fiat 124 Spider + XF Sportbrake

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#1615190 - 30/01/2018 12:28 Re: Airbag Light On - Error Code help! [Re: Jay1984]
1200smithy Offline
Club member 1643
Reaping the fruits

Registered: 12/09/2017
Posts: 66
Loc: Notts
Just going to try that on mine! I'll let you know. I think mine came on due to low voltage. But it now will not go off!
These silly problems are not just related to FIAT. My Volvo V70 estate was just as bad until I found the right guy!
_________________________
Smithy
59 PF 1500 Lampredi twincam Cabrio,
63 PF 1500 Lampredi cross flow Cabrio,
95 PF 16v Coupe

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#1616089 - 19/02/2018 12:31 Re: Airbag Light On - Error Code help! [Re: Jay1984]
1200smithy Offline
Club member 1643
Reaping the fruits

Registered: 12/09/2017
Posts: 66
Loc: Notts
Stupid light still on! Also Injector light flashed a couple of times yesterday!
_________________________
Smithy
59 PF 1500 Lampredi twincam Cabrio,
63 PF 1500 Lampredi cross flow Cabrio,
95 PF 16v Coupe

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#1616128 - 19/02/2018 20:42 Re: Airbag Light On - Error Code help! [Re: 1200smithy]
MIB Offline
Club member 1579
Reaping the fruits

Registered: 27/02/2006
Posts: 77
Loc: Newbury
The only thing I can suggest is to check that there isn't a fault with the wiring behind the dash. From the wiring diagram I can see that one side of the warning light is connected to battery +ve when the key is turned. I presume that the other side is grounded by the airbag ECU when a fault is present. Maybe the insulation on this wire is damaged somewhere and grounding to metal, causing the light to be on. You could test the theory by unplugging the airbag ECU and see if the bulb is still on when you turn the key.
Good luck!
_________________________

Bog standard!

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#1616174 - 20/02/2018 16:34 Re: Airbag Light On - Error Code help! [Re: MIB]
1200smithy Offline
Club member 1643
Reaping the fruits

Registered: 12/09/2017
Posts: 66
Loc: Notts
thanks
_________________________
Smithy
59 PF 1500 Lampredi twincam Cabrio,
63 PF 1500 Lampredi cross flow Cabrio,
95 PF 16v Coupe

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#1621737 - 11/06/2018 20:10 Re: Airbag Light On - Error Code help! [Re: Jay1984]
Jay1984 Offline
Club member 1547
Making a profit

Registered: 22/06/2011
Posts: 204
Loc: Living the dream
Just realised I didn’t update this thread! Always bugs me when folk don’t share the outcome of an issue, especially when it was a good one and the problem is now resolved! Sorry

So, the clue was actually tucked away in this thread the whole time...

Originally Posted By williamsdad
do you actually have a passenger airbag? i think i read on fb that you have the dials off a plus in your car... could it be that the airbag ecu is looking for an airbag that isnt there?


Only it wasn’t the passenger airbag that was missing! It was side airbags. Apparently my dials were the rarer type that registered side airbags. So, the dials were swapped with the base of a different set of dials. They were tested using GPS to ensure the speedometer was still accurate (I kept all the speedometer parts from the plus dials) and all was good. Hooked up the laptop and reset the airbag ECU one last time and the light went off!

Hope that explanation makes sense!

Cheers,

Jay

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#1621750 - 12/06/2018 08:58 Re: Airbag Light On - Error Code help! [Re: Jay1984]
DaveG Offline
Club member 311
Forum is my life

Registered: 16/12/2005
Posts: 6750
Loc: Lightwater, Surrey, UK
It's good that you solved it (and remembered to come back and tell us wink ) but I would have thought that it's only the airbag ECU that can "register" side airbags, when you say "dials" I assume you mean the instrument panel - all that does it have a warning light? Did you swap the airbag ECU as well?
_________________________
2000 Pearl White Plus & 1996 Portofino 20vt
1985 & 2016 2017 Fiat 124 Spider + XF Sportbrake

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#1621751 - 12/06/2018 09:42 Re: Airbag Light On - Error Code help! [Re: Jay1984]
Jay1984 Offline
Club member 1547
Making a profit

Registered: 22/06/2011
Posts: 204
Loc: Living the dream
ECU wasn’t changed, apparently some plus dials (typical only the rare ones) will not switch the light off unless they get the right signal from the ECU.

You’ll see from my photos above that the ECU was reading “No Fault codes” but the red light remained on. But, when I swapped the dials for a standard set, the light went off. So I knew it must have been the dial unit itself. It was then a case of swapping all the PLUS dial faces over to a standard unit (check out the “How 2” section where I documented how to swap the Rev counter - I just did the same thing for all the faces). The risk was that the PLUS speedometer reads higher than the standard one... or vice versa, I forget! So I made sure I kept the plus speedometer mechanics and tested it with GPS to make sure the speedo was still fairly accurate.

Cheers,

J

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#1621753 - 12/06/2018 10:27 Re: Airbag Light On - Error Code help! [Re: Jay1984]
DaveG Offline
Club member 311
Forum is my life

Registered: 16/12/2005
Posts: 6750
Loc: Lightwater, Surrey, UK
OK thanks, I know the later Plus dials are also different for the later ABS with EBFD (electronic brake force distribution). Thanks for the clarification.
_________________________
2000 Pearl White Plus & 1996 Portofino 20vt
1985 & 2016 2017 Fiat 124 Spider + XF Sportbrake

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#1621756 - 12/06/2018 10:50 Re: Airbag Light On - Error Code help! [Re: Jay1984]
Countrycruising Offline
Club Rep Europe, member 914
I AM a Coop

Registered: 12/09/2006
Posts: 14407
Loc: FCSS 01684 593187
For future reference some very late Plus dials have an LED for an airbag dash light, there's a diode on the card which if it fails brings the light on but no code error so sounds very much like this is what's happened with yours Jay.
_________________________

www.facebook.com/fiatcoupes

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#1621758 - 12/06/2018 11:19 Re: Airbag Light On - Error Code help! [Re: Countrycruising]
Jay1984 Offline
Club member 1547
Making a profit

Registered: 22/06/2011
Posts: 204
Loc: Living the dream
Originally Posted By Countrycruising
For future reference some very late Plus dials have an LED for an airbag dash light, there's a diode on the card which if it fails brings the light on but no code error so sounds very much like this is what's happened with yours Jay.


You could be right Joe, my dials did have the LED airbag light instead of a standard bulb. It was another specialist that told me it was looking for a side airbag. But perhaps that diode was dead!

Every days a school day.

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