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Discussion Starter #1
Hi.
Can anyone advise me what to do next ...
Volvo s60
2005/2006
2.5 petrol


When I’m leaving the car at the parking lot for two days, the car battery is getting discharged.
Power meter c.a. 0.42 Ampere.
Apparently it can discharge the car battery in 2-3 days.


It’s not the battery – I bought new one: Bosch Silver 60Ah
Audio and alarm in this car are original from the beginning.

I found the fuse responsible for that, however it is also responsible for such elements as windows, lights, gearbox.
After disconnecting the fuse, communication error with the gearbox appears(to remove.


I sit possibile that it’s a short circuit?

When connected to a computer, it displays an error:
CEM-1A5C with the upper module (UEM) Signal missing (it can not be removed).


The car is efficient, I don’t have any other problems with it.

Have you had such a problem?
Is there any way to solve it?


Removing the clamp is quite annoying.

Thank You for your problem.

Any suggestions [email protected]
 

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Is the headlight switch in the correct position? It should be all the way to the left or all the way to the right. In the middle, the sidelights are on.

Boot light stuck on? (Drop down rear seat to check). Glove box light? Any aftermarket electical items added?

I recall that sometimes the brake sensor can fail causing the brake lights to be on all the time.
 

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Discussion Starter #3
Thank you for a quick answer.
Highlight switch is in right position. Lights are off or on not in the middle.
I have already checked boot light and glove box and no light found

Nothing added everything the same from the beginning.

Someone said that UEM module can be responsible for the middle mirror.
And it could have been replaced and it is “living it own life”.

Any other suggestions...
 

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What you need to get your hands on is an inductive ampclamp or you can use a normal multimeter on the amps setting. If using a multimeter disconect the battery earth terminal and connect the multimeter set to amps between the battery earth and the earth lead. Next switch off and lock the car. If it has a microswitch for the bonnet make sure that is engaged. You should have a drain of no more than 0.3 amps. any more is too much. Then it's just a case of time spent isolating each circuit to find the source of the drain. It's time consuming as it'll be a case of removing one fuse at a time to find the circuit that is at fault (don't forget to replace each fuse once checked otherwise you'll end up with a hand full of fuses and no idea where they are supposed to go) Once you've located the offending circuit it's just a case of finding out which component is at fault.
 
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