Fiat Airbag warning light

Discussion in 'Tech/Mech General' started by TheCaller, Oct 13, 2016.

  1. TheCaller

    TheCaller Funster

    Joined:
    Sep 23, 2013
    Messages:
    1,818
    Likes Received:
    2,158
    Location:
    Lincs
    I have a 2013 Fiat Ducato PVC & the airbag warning light has started coming on. It started as an intermittent thing – coming on when the key was first turned (as it should), but then taking a while to go off. Turning off & turning on again usually cured it.

    But gradually it got so it wouldn’t go out & it also started producing a warning beep. Now it’s on all the time.

    That pattern suggests to me a sensor problem rather than a genuine fault with either the airbag or the seat belt pre-tensioner. Anyone got any thoughts on this one?

    The message says refer to handbook & the handbook says refer to your Fiat Dealer. Before I head off to my local dealer clutching an open chequebook, is there any more information I can glean? Would these faults show up on an OBD2 reader & would it tell me anything more than I already know?

    It’s particularly unfortunate timing because the first MOT is due & so is the tax, so I may need to fix it in a hurry. Does anyone know if the airbag warning light on is an MOT failure? Sounds like it ought to be, but I’m sometimes surprised by what isn’t included.
     
  2. MikeD

    MikeD Funster

    Joined:
    Dec 21, 2011
    Messages:
    1,978
    Likes Received:
    1,759
    Location:
    London
    I am not a mot expert but i think it is a failure reason

    I think @Geo is the expert for mot's. pm him I am sure he would give you a definitive answer
     
  3. John Laidler

    John Laidler Funster

    Joined:
    Jan 9, 2013
    Messages:
    8,582
    Likes Received:
    11,571
    Location:
    Plympton, Devon
    Might be worth having a look under the seats, especially if they rotate, as there may be a dodgy connection to one of the sensors.
     
    • Thanks Thanks x 1
    • Useful Useful x 1
  4. berni109

    berni109 Funster

    Joined:
    Sep 10, 2012
    Messages:
    293
    Likes Received:
    248
    Location:
    worcester
    Def mot fail.
    Mine started doing similar in Germany this yr.
    It goes off sometime after driving for a while.
    Sometimes goes off as normal after restart.
    Luckily it behaved itself for the mot.
    I read somewhere not to mess with connections while battery connected.
    Will watch this thread closely to see if anyone can give you a fix.
     
    • Thanks Thanks x 1
  5. John Laidler

    John Laidler Funster

    Joined:
    Jan 9, 2013
    Messages:
    8,582
    Likes Received:
    11,571
    Location:
    Plympton, Devon
    Good point about disconnecting the battery, alternatively, just keep your head low and out of the way. :)
     
    • Funny Funny x 1
  6. moulin 87

    moulin 87 Funster

    Joined:
    Aug 31, 2015
    Messages:
    223
    Likes Received:
    399
    Location:
    Limousin, France
    Mine came on last week for the first and so far only time. After perhaps 10 minutes it went out and the message cleared itself...
     
    • Useful Useful x 1
  7. TheCaller

    TheCaller Funster

    Joined:
    Sep 23, 2013
    Messages:
    1,818
    Likes Received:
    2,158
    Location:
    Lincs
    Good point. Certainly sounds an obvious point if failure. The seats do swivel & have also been removed & replaced several times, so a likely candidate.

    Various professionals have removed the seats since it was new to access the electrical kit under there. I don't remember them disconnecting the engine battery before doing so. They certainly didn't ask me for the radio code. @dave newell lvs would know the answer to that one.
     
  8. Attila the Hen

    Attila the Hen Funster

    Joined:
    Aug 3, 2015
    Messages:
    39
    Likes Received:
    27
    Location:
    Shropshire
    Hi, I have the same problem with my 2011 Ducato PVC and found the solution is the connector under the outer side panel on the drivers seat.
    This gets stressed by seat rotation and bumps in the road. Make sure the ignition is off, disconnect the plug/socket, spray with contact cleaner and clean any visible contact surfaces with a cotton bud, reassemble and you should find the problem light will have gone away. It will be back on again in about 3 months, I have cleaned mine twice this year and am now getting the occasional warning once again. The only real solution would be to hard wire the connections but if you ever need to remove the seat you would have to cut the wires.
     
    • Thanks Thanks x 2
  9. TheCaller

    TheCaller Funster

    Joined:
    Sep 23, 2013
    Messages:
    1,818
    Likes Received:
    2,158
    Location:
    Lincs
    My symptoms exactly. Unfortunately it no longer clears itself.
     
  10. TheCaller

    TheCaller Funster

    Joined:
    Sep 23, 2013
    Messages:
    1,818
    Likes Received:
    2,158
    Location:
    Lincs
    Thanks for that - I'll give it a go & report back. Don't think I've got any contact cleaner to hand, but I'll improvise. :)
     
  11. Geo

    Geo Trader - Funster

    Joined:
    Jul 29, 2007
    Messages:
    9,544
    Likes Received:
    5,596
    Location:
    Mansfield,Notts
    MoT Fail im afraid
    Reason for Rejection. 2
    A Supplementary Restraint System (SRS) malfunction indicator lamp indicating a system malfunction.
    SRS=Airbag
    Seat connections are the most common cause
    Geo
     
    • Like Like x 1
    • Thanks Thanks x 1
  12. TheCaller

    TheCaller Funster

    Joined:
    Sep 23, 2013
    Messages:
    1,818
    Likes Received:
    2,158
    Location:
    Lincs
    Thought that would be the case. Thanks.

    Which confirms other people's experiences. That's promising, because it should be a relatively straight-forward fix, so long as it isn't too difficult to trace. Parts 5p; labour nn hours, which won't be too bad if it's my labour - so long as I can find it.

    I used to be quite good on vehicle electrics - was a qualified instructor. Trouble is it was agricultural vehicles & it was 35 years ago. Things have moved on a bit since then! It was electrics but no electronics. Mostly a case of battery at one end, lamp at the other & a bit a wire trailing about somewhere in between. Trapped wire or a bad earth was the answer to most faults.
     
    • Like Like x 2
  13. TheCaller

    TheCaller Funster

    Joined:
    Sep 23, 2013
    Messages:
    1,818
    Likes Received:
    2,158
    Location:
    Lincs
    I've found your July 16 thread now. Useful info in there - thanks. I've linked to it for the benefit of anyone finding this thread in the future.
     
    • Thanks Thanks x 2
    • Useful Useful x 1
  14. MikeD

    MikeD Funster

    Joined:
    Dec 21, 2011
    Messages:
    1,978
    Likes Received:
    1,759
    Location:
    London

    They might just have pulled the fuse for that circuit so no need for radio code etc
     
  15. Cal54

    Cal54 Funster Life Member

    Joined:
    Apr 25, 2014
    Messages:
    1,280
    Likes Received:
    6,426
    Location:
    Lancaster
    I have the Peugeot Boxer and a couple of weekends ago whilst coming home from Malvern my warning light and computer message came up 'Airbag Failure'. This was 4 days out of warranty. Inspected by my local Peugeot dealer and found that the ECU had a fault cost of a replacement £350. However given the low mileage etc the dealer approached Peugeot who agreed to meet the cost. I however, had to fork out £108 just for the diagnostic check to find the problem in the first place! Love my van but not Peugeots electronics!! Third problem in 3 years, the first occurring on the day of purchase!!!!
     
  16. TheCaller

    TheCaller Funster

    Joined:
    Sep 23, 2013
    Messages:
    1,818
    Likes Received:
    2,158
    Location:
    Lincs
    Oh dear. :(

    So back to one of the questions in my first post - would an OBD 2 reader tell me anything more than the warning light already does? For instance, would it distinguish between an airbag fault & a seatbelt pre-tensioner fault?
     
  17. Cal54

    Cal54 Funster Life Member

    Joined:
    Apr 25, 2014
    Messages:
    1,280
    Likes Received:
    6,426
    Location:
    Lancaster
    Sorry Simon can't help with that. I went to the Peugeot garage as I hoped I could claim under warranty. Whether the diagnostics machine at my local garage would have identified the fault I'm not sure but would of expected it to given that it would be an MOT issue.
    They did ask me if any work had been done under the passenger seat as wires can get disturbed and that was before the diagnostic check. There hadn't been so this was ruled out immediately.
     
    • Like Like x 1
  18. tonyidle

    tonyidle Funster

    Joined:
    Aug 6, 2013
    Messages:
    2,875
    Likes Received:
    2,698
    Location:
    Kendal, Cumbria
    Most obd2 readers can't see SRS functions and are anyway unlikely to tell you more than you know already. I cured the same fault as yours by tightening a loose cover screw on the SRS ecu (it was part of the earth connection) on our Smart car. Check the various plugs & sockets, check the steering wheel 'clock spring' and associated connectors, and remove, examine, and replace, the SRS ecu. The light will go out without needing to be reset once the fault is cleared.
     
    • Thanks Thanks x 1
  19. SteveandDenise

    SteveandDenise Funster

    Joined:
    Sep 26, 2011
    Messages:
    474
    Likes Received:
    621
    Location:
    Spalding LINCS
    We had aa similar problem with a new 12 month old Mclouie Fiat when the builders removed the standard seats to recover them they cut the harness recovered the seats then taped up the wires took it to Fiat they said a complete new harness due to the builders fault, buy this time I was fed up with them passing the book to each other so had a look myself and found a plug under the rubber mat disconnected it soldered up the wires and plugged it back in fixed.
     
    • Informative Informative x 1
  20. pops

    pops Funster

    Joined:
    May 1, 2012
    Messages:
    409
    Likes Received:
    356
    Location:
    south glos
    Had the same as @Cal54, the airbag light came on the way to garage for first MOT. Lucky my son works there and he did the diagnostic test and it came up with ECU fault. took it to Fiat Pro workshop, they came up with same fault £350 to fix, I ask them to speak to Fiat and they agreed to pay for repair. I had to pay for diagnostic check. (£76).
     
    • Thanks Thanks x 1
Loading...

Share This Page