StuckAgainSteve
Well-Known Member
Simplest way to tell would be to disconnect the battery and charge it, modern smart chargers will charge at over 14 volts. What's the voltage with the engine off and headlights on?
StuckAgainSteve
Well-Known Member
A dead or shorted cell will be pulling the voltage down when the car is running. Measuring the voltage of the battery under load without the engine running should spot that. If it's maintaining around 12.4+ volts whilst being discharged then it's unlikely to be a dodgy cell (or battery) in which case I'd blame the alternator diode pack.
cheongthong
Active Member
it is the alternator regulator
dogsbody
Very senior member
Depends on the battery. These modern gell thingys need a good bit over 14 volt to charge them.
I've put a fully charged battery on this morning and still got electrical gremlins, the only fault registered by all comms is lcm error message in the instrument pack which cleared but didn't resolve anything. I'm contemplating getting diagnostics read at the stealers , although a local garage has autologic, does anyone know if there's any major differance between Testbook 4 and autologic?
Datatek
Well-Known Member
They are not GEL in the L322 as far as I know, they are lead calcium and need between 14.2 and 14.7 volts to charge correctly.
