air bag light (1 Viewer)

[gus-lopez]

this ecu is for airbag and not eng

That's good news then.

 

[2bob]

well iv had a reply from these looks like this might be the way to go
p@remmington.plus.com

to me

Going to be the logic chip (loss of coms).



£207.50 ISH.



About 50% of the price of a new one I would guess.



Beware these suffer wiring faults, so testing the unit would be worth the £46.50 as it could have nothing wrong with it off the vehicle.

 

[Diabalo]

My new replacement done under warranty was around £200, and that was with a Fiat main dealer mind you I think Elite Motorhomes did some haggling with them.

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[chopper602]

Mine has come on after I allowed the main battery to go flat over Christmas. Tried my ODB reader which doesn't show any errors, so I guess I need to take it to an independent or dealer. Occasionally as I'm driving, the passenger orange light will come on (babyseat facing backward?), but that then goes off again, so beginning to wonder if it's a wiring fault . . .

 

[2bob]

HI al just a quick up date at the moment these people can not find a fault p@remmington.plus.com
they giving it a second try
so it could be wiring

 

[Nirvanauk]

Nirvanauk did it do the trick

Yes. And sorry for the delay in replying!

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[2bob]

another up date for my ecu
We have tested the unit again and again and con find no fault.

We think the unit software may have go corrupted with the multiple attempts to connect to it with the wrong protocol (diagnostic equipment)

The log files inside the unit are full with files generated with poor diagnostic boots.

But as a stand alone unit away from the loom it works A1 100% OK.

So this has left you with two issues.

You have a wring fault and this unit may need re-flashing?



costs:

£44.50 to test

£85.00 to flash (which may not solve your problem)

 

[mid4did]

costs:

£44.50 to test

£85.00 to flash (which may not solve your problem)

Nice work if you can get it.Mine's been on for a while now (2004 renault master) renault forums suggest a dealer as ordinary tester wont even bring up the codes,local garage connected their Snap-on tester it brought up open circuit codes suggested probably the clock spring also.I'll get round to it when I get back.

 

[2bob]

LEFTlegger thas what might be on mine the clock spring
have to find out how to check it out

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[mid4did]

looks like an ebay search for a part

 

[2bob]

just an update auto elec been check all fuse still can not connect to ecu now got to find a wiring diagram so comeing back

 

[2bob]

the latest up date all wiring all ok
so it looks like a new ecu ouch £400-26p

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[DBK]

the latest up date all wiring all ok
so it looks like a new ecu ouch £400-26p

Ouch, A bit more than two bob. I was lucky and got mine done under warranty.

 

[2bob]

well i hope this is the end new unit light out all ok now
thx s for the help

 

[****]

Under the seat it would only be the wires for the seat belt warning, the air bag on the drivers side is in the top of the steering column and under the dash on the passenger side. Not advisable to play around with air bags unless you fully understand them and know what you are doing otherwise it can result in serious injury.

My Fiat car had airbag sensors under the seat. If no one is in the seat and the car gets rammed the bags dont go off pr if i was in a prang with no passenger the other airbag would not go off. I had the warning in this Fiat car and gave the under seat connectors a clean and it was fine there after.

Steering wheel ribbon a likely culprit!

That was the problem on my old Pug. They were quite expensive from what i remember so took a visit to the scrap yard. Easy to change though.

OP. If dicking about with airbag connectors its recommended to disconnect the battery for half an hour before you do to defuse the system.

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[tonyidle]

I bought one off eBay for our Smart car. It cost me £30 less than a new one. After I'd removed the old one I thought I'd take a look at it out of curiosity and found that the cover screw, which was hidden under 'don't tamper glue', also connected the unit to earth. It was loose so I tightened it & cured the problem. Incidentally no resetting was needed once the ECU was functional again.

As for dangerous: well they are if you are less intelligent than the parts-changer that passes for a motor engineer these days. It isn't rocket science - just disconnect the starter battery whilst working on the airbag circuitry.

 

[Geo]

I bought one off eBay for our Smart car. It cost me £30 less than a new one. After I'd removed the old one I thought I'd take a look at it out of curiosity and found that the cover screw, which was hidden under 'don't tamper glue', also connected the unit to earth. It was loose so I tightened it & cured the problem. Incidentally no resetting was needed once the ECU was functional again.

As for dangerous: well they are if you are less intelligent than the parts-changer that passes for a motor engineer these days. It isn't rocket science - just disconnect the starter battery whilst working on the airbag circuitry.

Oh dear! you are destined to learn the hard way
This must qualify as the most dangerous advice ever given
G

 

[tonyidle]

Oh dear! you are destined to learn the hard way
This must qualify as the most dangerous advice ever given
G

Taken directly from the Smart car service manual as it happens. There are other precautions mentioned - mainly about no-one being in the vehicle when the battery is re-connected - but nothing else. The airbag contains a detonator which requires an electrical impulse to trigger it and it did occur to me that there might be instructions about leaving time for any capacitors to discharge. But there wasn't: just a simple instruction to disconnect the battery. I've no doubt that there is more information about handling and storage but as I wasn't doing either I fail to see why what I wrote constitutes " the most dangerous advice ever given" ?

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