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electricity problems

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Old Apr 13, 2014 | 12:57 PM
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electricity problems

My 2010 Ralliart is using 0,8 amps when still and everything off.
So i start pulling fuses and measured everytime. When i came to the ECU fuse ( the one next to the radio fuse) it whent down to 0,0 amps.

Why?

Someone that can help me? I was hoping that it would me something like interiorlights but the ECU fuse?
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Old Apr 13, 2014 | 09:28 PM
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Relay going bad?
Here is a link to ralliart Circuit Diagram, maybe it will help you locate the souce.
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Old Apr 14, 2014 | 01:13 AM
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Originally Posted by neogeo64
Relay going bad?
Here is a link to ralliart Circuit Diagram, maybe it will help you locate the souce.
Thanks a lot.

 
 
 
Fuse nr 8:
A/C-ECU, AWC-ECU, column switch, combination meter, ETACS-ECU, ETACS-ECU (power window relay), key reminder switch, KOS-ECU, lighting control sensor and wireless control module <Vehicles without KOS>
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Old Apr 14, 2014 | 11:30 AM
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Shouldn't the ECU be draining a microscopic amount of power to basically keep itself "alive"?
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Old Apr 14, 2014 | 10:23 PM
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Originally Posted by mike594x
Shouldn't the ECU be draining a microscopic amount of power to basically keep itself "alive"?
Yes it should. But not 0,8 amps. A 50 amp battery will be dead in 50/0,8 = 62,5 hours - 2,6 days. Thats not okey.

0,02-0,05 is the target.
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Old Apr 15, 2014 | 04:28 AM
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Yes it should. But not 0,8 amps. A 50 amp battery will be dead in 50/0,8 = 62,5 hours - 2,6 days. Thats not okey.

0,02-0,05 is the target.]
Ah, gotcha!
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Old Apr 15, 2014 | 06:20 AM
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Plug fuse back in and pull the power window relay first (easy) and see if it drops (should never drop to zero (to keep ECU memory and clock/radio presets)...
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Old Apr 15, 2014 | 01:30 PM
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Originally Posted by Veronica
Plug fuse back in and pull the power window relay first (easy) and see if it drops (should never drop to zero (to keep ECU memory and clock/radio presets)...
where do i find it?
Fuse nr 20 i the same box does not help. (Front power window motor (RH),power window main switch and rearpower window motor)
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Old Apr 15, 2014 | 02:22 PM
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You need to goto each module that draws power from the fuse you indicated. unplug them all and plug them in one by one. If there is a relay or another fuse on the same circuit, that works as well.

TBH you're better off taking it to the dealer or another shop that specializes in 12v systems. Without access to wiring diagrams or component locations tracking down a parasitic draw can be time consuming and frustrating. Especially if you have to wait on a response from someone on a forum everytime you run into an issue.
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Old Apr 17, 2014 | 03:28 AM
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Originally Posted by stfuad
You need to goto each module that draws power from the fuse you indicated. unplug them all and plug them in one by one. If there is a relay or another fuse on the same circuit, that works as well.

TBH you're better off taking it to the dealer or another shop that specializes in 12v systems. Without access to wiring diagrams or component locations tracking down a parasitic draw can be time consuming and frustrating. Especially if you have to wait on a response from someone on a forum everytime you run into an issue.
I got the tools, i got the time, i got the wiring diagrams. But i dont have all locations yet. But i am not in a hurry and kind of like the chalange so i will keep on searching

I use the car everyday so its not a problem right now.
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Old Apr 17, 2014 | 06:33 AM
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How did you figure out your car was having the power drained anyway? Random circuit test?
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Old Apr 17, 2014 | 11:05 AM
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I would start by swapping out all relays on the fuse. They are usually around $9 a pop at he dealer / online.
Bad relays are hard to detect imo.. they can work one sec.. and not the next. Swapping them out at least gets rid of one variable.
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