Made made some progress
I failed with all the android apps, sometimes I had a fleeting moment of functionality followed by nothing. I have noticed that there are some 11.9 ish voltages around the ECUs at the rear. They all seem to have good 12.5v as well, so I don't know if this is by design, I'll have to check pin diagrams. Made me wonder if they weren't playing up from 'low' voltage although really that should still be well within spec.
So I made sure the battery was fully charged and on trickle. Contacts good, earth good, then I went and tried the Diagbox 9 install I have just downloaded from
French PSA diag super forum. And it worked! With a chinese half chip dongle that has been hanging around in my shed for over a decade. And yes hj... I did indeed end up with quite a powerful tool for absolutely nothing (although a donation to psa-diag is in order). A good day!
I had dozens of faults to start with, but after clearing and reconnecting all components I am down to U1116 for handsfree access (which I believe is irrelevant) and SRS/BTA faults only. Which is what I'd hoped for.
I have been able to view all battery cell info, all cells between 3.95v and 4.00v which is nice... sadly they are apparently down to 31Ah capacity. I haven't seen how to reset their capacity though, and I'll need that for the MG cells.
I can't clear any of the faults in the SRS unit with my Diagbox. I guess thats normal?
From the online service manual I gather that;
B1476 and 1477 are simple power loss codes from when the 12v battery was removed in the accident, they will be recorded but not cause fault status.
B1697 is of no significance because the imiev doesn't even have this facility. The Ion does, but I'm hoping that it is not considered vital by the SRS.
B1499 and B1698 are the biggies indelible except for people with hands on chip reprogramming skills.
So the question that now arises, can I get a used ion SRS module and just stick it in? Or do I have to get mine reset by someone clever?
That question is made slightly cloudy by the fact that this SRS module part number is actually from the imiev (
8635A227DPSBCW2T67472 or 8635A386 or 8635A387DPSBCW2T68182) and NOT from the Ion (8635A387DPSBCW2T68182). Which is a bit odd
, is this already a replacement?
Bearing in mind I wont be having any airbags in the 203 (although I could keep the collision detection system for HV shutdown in the even of an accident), this is just to get the system up and running again, any thoughts much appreciated, Tom.