Airbag warning light problems

Sep 14, 2007
1,783
755
North Yorks
MH
A Class
Exp
Too long lol
Your expert help needed and looking on you knowledgeable lot.
Airbag warning light problem it started with just airbag light and had AA diagnostics unable to read, advised to get Auto electrician or main dealer. Got Auto electrician and he tried to read the SRS airbag module the child seatbelt warning light and the seat belt warning light came on (come to think of it no audible sounds) he diagnosed a new airbag module which I sourced and arranged auto elec guy to come and fit and do a new diagnostic.
He temporary connected the module and was able to communicate and only the airbag warning light and see handbook warning came on. He did checks and found no errors except can line error I think he said but unable to get the airbag light to go off. He disconnected the temporary new module in case the fault caused another module failure and said I needed to decide next cause of action.
He stated that the diagnostic stated no faults at all or error codes for airbag system so the system is working and it is a canbus error. This is my recollection and I may have misinterpreted something or missed something. He said it may be a simple reset to make the light go out.
So he has left the decision to me whether to get him and a colleague to fault diagnose and it could take? Or take it to main dealer and it could take?
So what are your thoughts guys is it a reset of the light by doing? Or is it? TIA

Fiat Ducato 2.3 2012 Lhd
maybe @Geo or @DMS maybe able to advise or>
 
Jun 1, 2015
629
1,234
Southampton
MH
A Class
Exp
4 Years
Check the wiring under the front seats if they swivel ours was worn through and shorting once the wiring was fixed no more problems.
 
OP
SandJ
Sep 14, 2007
1,783
755
North Yorks
MH
A Class
Exp
Too long lol
Check the wiring under the front seats if they swivel ours was worn through and shorting once the wiring was fixed no more problems.
Steve the technician said if there was an issue with wiring or plugs it would show as a fault and its showing no faults
 

TheBig1

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Nov 27, 2011
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I believe you need the FIAT computer to pair the new module. I would of recommended having the original paired module repaired by a specialist if you had asked first
 
OP
SandJ
Sep 14, 2007
1,783
755
North Yorks
MH
A Class
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Too long lol
Depends on the fault reader he has not all non Fiat readers will read all faults the main dealer will have the right reader.
He said he had the right kit and seemed the case when he connected the new module, it may well end up main dealer just seeing if anything else suggested

I believe you need the FIAT computer to pair the new module. I would of recommended having the original paired module repaired by a specialist if you had asked first
Tried contacting a repair place and as the airbags had not been deployed then needed new or refurbished. Sourced new and they advised plug and play and remove error codes (not sure if technician did this) but he said light should go out as no errors shown.
 
Feb 16, 2013
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ambulance conversion
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10 to 1 its the wire under the seats, common problem, just get under the seats and find the connecters and give them a good clean.
 
Feb 16, 2013
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i have a renault van that will go hundreds of miles with it off then it will come on for no reason , so just give the wire under the seat a wiggle and it goes off for another 100 or so miles.
 

TheBig1

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Nov 27, 2011
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wire under seats and clock spring in the steering wheel are very common faults. Before resorting to the main dealer you could try removing the battery earth lead and solar panel supply. plug module back in and wait 20 minutes before reconnecting the battery.
 

TheBig1

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Nov 27, 2011
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i have a renault van that will go hundreds of miles with it off then it will come on for no reason , so just give the wire under the seat a wiggle and it goes off for another 100 or so miles.
dangerous advice, as wiggling a damaged wire and shorting it to earth could trigger the airbags to deploy
 
OP
SandJ
Sep 14, 2007
1,783
755
North Yorks
MH
A Class
Exp
Too long lol
wire under seats and clock spring in the steering wheel are very common faults. Before resorting to the main dealer you could try removing the battery earth lead and solar panel supply. plug module back in and wait 20 minutes before reconnecting the battery.
In your opinion would the wires or spring show as error on diagnostic machine? No confidence working on electrics hence getting Auto electrician out he showed me the diagnostic machine at times and he had loads of connections with different numbers the machine said to connect so I think it was good enough.
 
Jul 2, 2017
226
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Pr9 9qs
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C Class
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2016
X mechanic and the only thing that have major headaches for airbag warning was slip ring under steering column. But saying that not into the swivel seats or child restraints as truck mechanic. But I think the 1st check would be slip ring as it can cause intermittent fault which sometimes diagnostic will not pick up.
 

TheBig1

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Nov 27, 2011
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as above, they do go intermittent and it can vary as to how the steering wheel is turned

the issue with seat swivels is that you can get a couple of different faults. the wires snag and pull the connecting plug apart giving a bad connection. or the wires get caught and cut part through in a few places or if lucky a clean cut. can be an absolute pain to fix without removing the seat
 
Nov 22, 2007
4,010
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East Yorkshire
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Rapido "A" Class, Mecedes
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18+yrs plus 25+Towing
Was it a pure Airbag Fault?. I had an SRS Fault show after I had reason to remove the passenger seat, which needed to disconnect wires. Simple process of getting the Diagnostic onto the Vehicle and cancelling the fault, Never reappeared. Done it twice now as I had to remove the driver seat to get at a bunch of Relays and fuses! in the seat base. (Sprinter BTW). I used Multiecuscan, on the Ducato and the Punto Linked to the Laptop via USB. To trace and Eliminate a EGR fault. That kept recurring periodically until I replaced the EGR.
 

pappajohn

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Aug 26, 2007
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Steve the technician said if there was an issue with wiring or plugs it would show as a fault and its showing no faults
How much does it cost to have a look anyway.... Nothing.
Just have a look, you may be pleasantly surprised.
 

pappajohn

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Aug 26, 2007
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dangerous advice, as wiggling a damaged wire and shorting it to earth could trigger the airbags to deploy
Then so can shorting to earth while driving.... Far more dangerous than standing beside the seat and reaching under to wiggle the wires.
 
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