New airbag ecu fitted today (1 Viewer)

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May 8, 2010
2,090
4,393
Funster No
11,466
MH
A class
Exp
Since 2010
Thought I'd start a new thread, further to all the others regarding failed airbag ecu's.
We have a 2017 reg van. Airbag light originally came on when we started the engine following 4 nights parked up at the Malvern show in August.
This was very bad news for us as our MOT was due, the first week in September 🫤.
We had it diagnosed by a mobile auto technician, who replaced the wires under the front seats and the light went out. MOT passed!
We subsequently drove around 3000 miles in the van and all was well.
When we started the van up in January, the light came on again.
This time, we decided to have the ecu replaced.
We received various quotations from Fiat Professional garages and finally settled on Travelworld, who are fairly local to us.
We have just returned from having it fixed at a cost of £406.
We checked that the replacement unit has the new part number, as per a recommendation in one of the other threads on here.
In the view of the technician who carried out the work, the failure of these ecu's is not connected with voltage spikes.
Our fingers are crossed, but we hope that he is right.🤞
 
Jan 5, 2014
210
903
tetbury
Funster No
29,579
MH
AutoTrail Expedition
Exp
Long time
Does it have the small bonding wire fitted from underneath one of the mounting stud nuts to a chassis stud?
 
OP
OP
bellabee
May 8, 2010
2,090
4,393
Funster No
11,466
MH
A class
Exp
Since 2010
Does it have the small bonding wire fitted from underneath one of the mounting stud nuts to a chassis stud?
Sorry. I've got absolutely no idea😮‍💨. We'll beyond my job description. I'm afraid🙂
.
 
Sep 3, 2012
7,706
26,448
Cheshire
Funster No
22,759
MH
C Class Elddis 175
Exp
8+ years
Did the technician give any other indication what the cause of failure might be other than voltage spikes on these ecu's?
 
Dec 19, 2020
3,653
9,736
The salty bit of Hampshire
Funster No
78,519
MH
Carthago Compactline
Exp
Since 2017
I fitted a supplementary earth lead from one of the Airbag ECU bolts to the battery earth today as a precautionary measure, having had to shell out £400+ for one on my previous Boxer based moho. A new battery ordered today will hopefully ensure voltages are within parameters.

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Feb 13, 2013
1,005
1,099
Edinburgh
Funster No
24,680
MH
Rapido 881F
Exp
Since 2015
Yep, just recieved my new battery and advised by NorthernAutotec that it has software issue and corrsion issues all fixed apparently. (Nearly 8 years old!) We shall see how it performs otherwise back to Fiat for a new one and a £500 plus notes!
 
OP
OP
bellabee
May 8, 2010
2,090
4,393
Funster No
11,466
MH
A class
Exp
Since 2010
Did the technician give any other indication what the cause of failure might be other than voltage spikes on these ecu's?
Sorry, Jim. We didn't have time to explore it with him. We just asked the direct question because we've been wondering whether to get a new battery, although the multi meter readings on the existing one seem fine.🫢
 

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