L322 issues

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Them voltages look a bit low :D

indeed they were , was a while back before I fitted monitors etc , there normally around 12.6 with the engine off and 14.6 with the engine running

the yuasa 019 battery lasts around a month if I don’t use it, then charge the main battery by just plugging my CTEK charger into the 12s socket

must confess was very surprised at how power hungry they are
 
Also right that some faults take suspension out, when I had a faulty abs sensor it took ABS system, HDC (that uses abs so understandable) suspension locked in place, I’d also dropped a bit but not to bump stops but when stopped and restarted the fault cleared for a few hundred yards and suspension would then rise as normal.
It’s one of them when half a dozen things go out you think “my cars just died” when really it could be 1 faulty sensor.
Mine is proof in point of that.
I had
"suspension lowered"
"hdc inactive"
"dsc inactive"
"park brake fault"
"transmission fault"
All due to a slightly faulty brake light switch
 
Mine is proof in point of that.
I had
"suspension lowered"
"hdc inactive"
"dsc inactive"
"park brake fault"
"transmission fault"
All due to a slightly faulty brake light switch
Surprising what happens, probably because all systems talk to each other so dodgy signal from one sends the rest into meltdown. Goes to show though why sometimes it looks bad but really dodgy sensor or like you say switch.
 
Also if I recall the brake switches have two contacts, one direct to brake lights and another for ecus, my x5 had bad switch and even though brake lights worked the ecu contact had failed.
 
Also if I recall the brake switches have two contacts, one direct to brake lights and another for ecus, my x5 had bad switch and even though brake lights worked the ecu contact had failed.
That's exactly what was causing mine. The ecu one seemed to occasionally delay changing states but the brake light one was instant. If there's more than a few milliseconds between it throws this fault (for future searchers)
 

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