by Ewan from Oz » Sun Apr 22, 2018 3:55 am
Well it's been weeks since I last updated my progress on the BCM issue. It's been on the back-burner since I haven't really needed the van for a while. I installed Forescan on my Win XP laptop and connected to the van using the modified ELM327 (USB) recommended by Knobby. I was able to perform the "module reset" on the BCM as recommended by Grogan. (That can be done without the Forescan "extended licence" which I will need to do the PATS programming if I install a replacement BCM.) Anyway, it doesn't seem to have done much. Most of the issues I had were intermittent and are not showing up anyway, the only permanent issue I still have is the parking lights staying on. I tried disconnecting the light switch as recommended by Loot, but the lights stayed on. It does appear to be the BCM keeping them on since when you turn the ignition on (but don't start the engine) the lights go off, but then when you start the engine, a couple of seconds later the lights turn on. They then stay on all the time after that even when you stop the engine and remove the key. Strangely, if you turn the ignition back on (but don't start the engine) the lights will go off and if you then turn the ignition off the lights stay off but only for a time since they will turn back on some minutes later. I presume the next step is to try a second hand BCM? The only thing I haven't done is check every earth connection but I have checked the major ones and everything was tight and clean.