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Forums › The Car › 206 Problems › Immobiliser and airbag fault on 1st start


 
 

Immobiliser and airbag fault on 1st start
Forum Index206 Problems
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Bigbenj_08
PostPosted: Fri Oct 24, 2014 11:58 am Up
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Hi chaps,

I have a few weird issues with my 206.

1) 1st start, my airbags lights come on (driver and passenger) and I get an airbag fault.
2) so I switch off, start again and the airbag fault is gone but I get an immobiliser fault flash up and disappear.
3) Let the car idle for a bit (idles fine), switch off and on again and all faults are gone.
4) the car is then fine for the rest of the day, leave the car overnight and the gremlins return.

The car starts and drives fine with/without the faults, its just the faults are there!
Occasionally I get an ABS fault instead of the airbag lights, but I've had my ABS checked and it is fine.

No codes to read so I'm stumped.

My guess is battery or a lose wire somewhere.
Battery is showing 12.4v, but has been in the car since new in 2006 and the alternator appears to be working.
As the car is fine after its been running, I recon the battery cells could be naffed.

I've read a faulty ECU earth could be the cause, anyone know where this is located before I get the battery tested properly?

Anyone else had this issue?

Aegean Blue 1.6 16v Sport

 
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TonyW
PostPosted: Sat Oct 25, 2014 2:50 am Up
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YES!!!!!!!!

This is exactly what I've got going on with my 53 HDi Quickie, so will be watching with great interest as to if our forum geniuses can identify what the problem and come up with a solution!

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copey
PostPosted: Sat Oct 25, 2014 2:52 am Up
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mine uses to throw up random faults abs/airbag ect when the battery was on its a**e also had a loose connection to the fuse box under the bonnet
02 2.0 hdi d turbo
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gazza82
PostPosted: Sat Oct 25, 2014 5:34 am Up
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Bigbenj_08 wrote:
Battery is showing 12.4v, but has been in the car since new in 2006 and the alternator appears to be working.
As the car is fine after its been running, I recon the battery cells could be naffed.

Eight years old .. well beyond it's sell by date! Sometime you get lucky but most last 5-6 years now. Saying that the originals do seen to last a lot longer than replacements ...

As winter is coming up, might be a good time to consider replacing it as it will let you down when you least need want it to.

Down to just the 1.4 HDi. Cayman Green 2.0i CC sold.
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Bigbenj_08
PostPosted: Sat Oct 25, 2014 7:31 am Up
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Haha yeah its def the original, I bought the car 2 years old on 21k, its now up to 90k and still the original battery!

Just done the bsi reset and it sorted the issue for about 30 seconds haha.

Aegean Blue 1.6 16v Sport

 
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Timon2210
PostPosted: Sat Oct 25, 2014 2:35 pm Up
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Check the earth cable (main) that going from the battery down the gearbox,that usually break cuz of moving,you can have a brand new one from dealer,check the cable going to the Engine fuse box,if all is good,time for a new battery,as if the battery shows some internal failure,that we don't see,it will cause such problems,that can't be explained.
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Bigbenj_08
PostPosted: Sat Oct 25, 2014 2:41 pm Up
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Yep checked the cable to the fuse box, still looks like new.

Took the battery out and couldnt see the wire to the gearbox so will pop my head under tomorrow to see if I can find it!

Aegean Blue 1.6 16v Sport

 
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Steve206
PostPosted: Sat Oct 25, 2014 6:34 pm Up
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Definetly a battery issue, sounds a bit low for cranking.
Work in Progress
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Timon2210
PostPosted: Fri Oct 31, 2014 2:48 pm Up
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Any update regard this?
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Bigbenj_08
PostPosted: Sat Nov 01, 2014 8:04 am Up
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Put a Bosch S4 battery in this morning, seems to have fixed the issue but I'll report back in a week or so to confirm if it has fixed it for good.

Battery was £45 from ECP... Can't complain really!

Aegean Blue 1.6 16v Sport

 
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Timon2210
PostPosted: Sun Nov 02, 2014 12:27 pm Up
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That is good news,hope things will be fixed for 45 GBP Wink
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Bigbenj_08
PostPosted: Tue Nov 11, 2014 6:43 am Up
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Zero issues at all since the new battery, I'd say that was a fix!
Aegean Blue 1.6 16v Sport

 
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TonyW
PostPosted: Thu Nov 20, 2014 4:52 am Up
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Just as an added extra... me too!!!

New battery from ECP, ZERO problemos since so i guess it's always worth having a good battery under the bonnet to keep the gremlins away!

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