Well that was strange (1 Viewer)

[Bluemooner]

Went to start Motorhome yesterday turned the key got a few beeps engine turned over but didn't start, got a few warnings on the dash ABS not working tried again power steering fault then engine overheating warning so i checked the battery and it was 11.2v so i plugged ehu in went to start it this morning and started straight away is this normal?

 

[Wildman]

what do you expect from a flat battery, all systems will report a fault. So yes to me it would seem normal.

 

[pappajohn]

with regard to charging...no.

unless its been wired to charge both batteries off your charger...doubtful as that would flatten the hab as well..

could be the split charge relay has jammed closed but again, that would flatten the hab battery as well.

does the control panel have a 3 way rocker for charging either hab or starter battery ?

if that was on starter it may flatten it.

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[Bluemooner]

Thanks for the reply's what confused me was the engine turned over fine

 

[pappajohn]

Thanks for the reply's what confused me was the engine turned over fine

ooops...missed that bit. oh:

if the battery was already low maybe the heater plugs were still active pulling most of the power combined with the starter drain leaving nowt for the ECU... which would throw up faults and disable the injection system.

i bet if you connect an OBD reader there will be loads of stored codes

 

[Jaws]

Slightly duff earth between the engine unit and the chassis perhaps ? ..

Have a look at the battery -ve connection.
If there is a wire going straight from the battery to the engine there is every chance that is what it is..

Back in the day, it was pretty common on a lot of cars.. Then they switched things around so the -ve feed went to the chassis first with a braided earth strap going from chassis to engine..
First physical sign you had a problem was usually a melted choke or throttle cable as the vehicle yould use that as the -ve feed path to the lump !!!

Loadsa fun and scary smoke !!!

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