RoadRage-Sophie
New member
Does anyone know if the airbag system has a seperate ECU from the engine ECU? if it does can someone tell me where it is. Just bought a Haynes manuel and there is no mention of it.
Technical Mk1 Punto Airbag?
- Thread starter RoadRage-Sophie
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Technical Mk1 Punto Airbag?
The airbag ecu is located centrally under the dash - the carpet has to be pulled back to see it, and has a yellow wiring harness going to it.
RoadRage-Sophie
New member
I am not to sure about it coz it says airbag sensor, and do you know where the actual sensors are that get triggered off are, because most cars are under the seat and maybe it could be built into the ecu. Plea:worship: se advise.
The airbag system on your car is pretty simple - the airbags and pretensioners only go off on the ecu's sayso - the sensor sometimes called a crash sensor is all built in to the ecu.
When you have a crash, you come to a stop very very quickly.
The force of this makes a metal ball in the ecu move and completes an electrical circuit - thus firing the airbags etc.
When you have a crash, you come to a stop very very quickly.
The force of this makes a metal ball in the ecu move and completes an electrical circuit - thus firing the airbags etc.
RoadRage-Sophie
New member
My ecu is knacked on mine, having a lot of probs. Took it into Fiat garage, as airbag light came on. Done a few tests, and they said it needs this part, was quoted 300 squid, can get of scrappy for 15-25 squid. Only prob is can't find another punto with twin airbags. It baffled the garage, baffled the lads out of motorworld, so Im just gonna take it off, till I find one. Anyone wanna take a look they are gladly welcome!
Off topic a bit - what punto you got ? is it an elx or 6 speed ? I have seen front and passenger before so there not that rare TBH.
See what happens when you disconnect the ecu - does the warning light stay on ?
See what happens when you disconnect the ecu - does the warning light stay on ?
RoadRage-Sophie
New member
Yes it does stay on. I got a Mk1 P reg Punto. 1.1. 55s.
Found this as I remembered that a airbag recall was issued for early mk1 punto's.
http://www.vosa.gov.uk/vosa/apps/recalls/searches/expand.asp?uniqueID=63D58B4DA76D380680256BB900268C95
Ask the Fiat dealer to check if ther is a recall outstanding on your car (SIGI) as you could get a new ecu done under the recall.
http://www.vosa.gov.uk/vosa/apps/recalls/searches/expand.asp?uniqueID=63D58B4DA76D380680256BB900268C95
Ask the Fiat dealer to check if ther is a recall outstanding on your car (SIGI) as you could get a new ecu done under the recall.
RoadRage-Sophie
New member
Ohhh Cheers mate! I will do that now.:worship:
yellow box underneath the radio unit, wire goes to drivers air bag and two yellow sheifed wires go thru firewall, to god knows where but not the ECU defantatly, thats on a 1998Sreg 85ELX
