Thread: Battery Drain

There was a post about this about a year ago.Dunno how to find it now.

From memory after the engine is turned off,it is a while before it goes to total sleep.
I actually checked my D2 at the time with a digital clamp meter but i can't remember the readings,i have a feeling it was less than .5 amp.

There are lots of threads on battery drain.

Let me google that for you

The BCU is the main source when the engine is off, primarily because the BCU controls the alarm system.

The Td5 ECU contains circuits that step up battery voltage to 90VDC to power the injectors and a power supply for the glow plugs in addition to supplying power to all the engine sensors. 0.3A doesn't sound as though it would be unreasonable with it powered on. According to RAVE the ECU will take between 10 seconds and 10 minutes to turn off depending on coolant temperature.

cheers
Paul

Thanks fella's. The .5 amp is after powered down for 1/2 hour . Drain drops to .2 amp when I disconnect black plug from ecu.

I think your abs system stays alive and the 300mA figure sounds about right for a D2 in the off state.