>>> the airbag issue would have stretched me.
Perhaps but the laptop dealer level diagnostics are excellent in guiding you through the process.
So your airbag light pops on. Get the diagnostic plugged in and (in my case) it says pass airbag short to earth. Substitute a known good airbag (I bought a used one for £20) and/or substitute a resistor in place of the airbag and recheck codes. I did both and the short to earth code remained proving it wasn't the airbag itself.
Then the diagnostic screen has a fault flowchart which next advises checking the wiring from airbag to ECU for short/continuity. Do that and find the wiring fine so refer to the flowchart again and it says if wiring OK change ECU. I did that and it was sorted.
So it leads you pretty well through the process even if you have no prior understanding of the specific system in the car.
>>>mostly what your post describes is that great care and research needs to go into obtaining parts that will work with a particular year and version of modern car, and the tools to integrate them.
Did you mean re physical parts or diagnostic software?
Last edited by: Fenlander on Sun 15 Apr 18 at 15:23
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