OldBikerPete
New Member
- Joined
- Feb 19, 2018
- Messages
- 10
- Country Flag
At the moment I'm having a bit of a problem with batteries in my 2013 Diesel LC200. It's got 2 starting batteries connected in parallel and is fitted with a 3rd auxiliary battery connected to the other two by a voltage-sensitive relay. I've just replaced all 3 since the two starting batteries were original equipment and the auxiliary developed a shorted cell. The replacement was triggered by one morning the doors wouldn't open and when I used the key to get in, the start switch only beeped at me and wouldn't even turn on the accessories - lit up the headlights (high beam too) though.
I charged the batteries fully last night and this morning my multimeter showed that the voltage had dropped to 12.57 volts. This would normally start a car no problems except I'm deducing that the computer has a voltage setting below which it will not allow the starting circuit to be engaged - probably a good thing most of the time.
With the help of the auto club battery man, we traced 1.5Amps of current that wouldn't go away to a relay in the fuse/relay box in the engine compartment. The 'map' in the lid of the box identifies this relay as the 'DOM CUT' relay. I have electronic copies of the 2013 users manual and a workshop manual covering models up to 2012. A search in both of these cannot find 'DOM CUT' at all.
Can anyone please point me to an explanation of what this relay controls so I can trace down the leakage?
Thank you.
Peter.
I charged the batteries fully last night and this morning my multimeter showed that the voltage had dropped to 12.57 volts. This would normally start a car no problems except I'm deducing that the computer has a voltage setting below which it will not allow the starting circuit to be engaged - probably a good thing most of the time.
With the help of the auto club battery man, we traced 1.5Amps of current that wouldn't go away to a relay in the fuse/relay box in the engine compartment. The 'map' in the lid of the box identifies this relay as the 'DOM CUT' relay. I have electronic copies of the 2013 users manual and a workshop manual covering models up to 2012. A search in both of these cannot find 'DOM CUT' at all.
Can anyone please point me to an explanation of what this relay controls so I can trace down the leakage?
Thank you.
Peter.