Re: 6A1/6A2

Posted by sbt on Feb 26, 2017; 10:56pm
URL: http://bluesaab-forum.90.s1.nabble.com/6A1-6A2-tp15p1029.html

Seth wrote

I guess it's possible that the difference in those cables is the ibus lines
being switched; everything else *should* be the same...(although you would
think *everything* would be the same, so who knows) but if the ibus isn't
connected properly then yeah, things won't work right. It could be that
reversing these wires is causing enough of a bus problem that the car can't
talk at all. OR if one of those lines is being grounded or pulled to 12v,
that would disturb the bus also.

Thanks for providing that info on the harnesses!

I'd be really surprised if the pin-out on two different connectors in different locations in different models is the same. Their being plug compatible means little when pretty much all 6 way connectors in the loom on these cars are the same shape. From the symptoms described (can start once, twice, but not thrice), I'd say there's a crossed wire with the BlueSaab plugged in; hopefully the module has not been permanently damaged. Since Antoine reports it was working when built, that's another reason to suspect this additional cable harness.

If no one has access to the WIS for these models and can check the wiring diagrams definitively, the next best thing would be close up pics of the connectors at the ends of these cables; the cable colours might give confirmation that these are different. Can anyone with a 9-5 and the 400129243 part oblige?

If it's just the pinout that's wrong on one end, should be able to fix by rearranging the pins in the connector at the non-CDC end.