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Battery drains out overnight?

Tiny
SAMASONIS
  • MEMBER
  • 2004 NISSAN PRESAGE
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 198,000 MILES
I’ve run a parasitic draw test and found a drain in the stereo and A/C control dash of 1.4-amp and when I pulled the fuse out and reads 0.02amp.
Disconnected the stereo, CD changer, A/C control dash, with multiple connectors and still 1.4 nothing changed.
Any help please, what can be the cause?
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Tuesday, October 11th, 2022 AT 11:11 PM

10 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 45,750 POSTS
Which fuse number is it that you pull to stop the draw?

This guide may help:

https://www.2carpros.com/articles/car-battery-dead-overnight

Please let me know so I can look up the wiring.
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Wednesday, October 12th, 2022 AT 1:06 PM
Tiny
SAMASONIS
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  • 12 POSTS
The red stand alone, fuse the stereo.
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Thursday, October 13th, 2022 AT 11:30 PM
Tiny
SAMASONIS
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  • 12 POSTS
If I pulled it out and started the car, the A/C will automatically turn on and cannot be turned off because the A/C controller dash is off from the fuse. It might be a relay, but I don't know where to find the AC relay for this kind a car. This is a Nissan presage U31 year 2004, I disconnect a connector underneath the dash, and it read normal 0.02A but don't know where they control.
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Friday, October 14th, 2022 AT 10:55 AM
Tiny
SAMASONIS
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  • 12 POSTS
Problem solved, found the it at the boot.
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Friday, October 14th, 2022 AT 11:22 PM
Tiny
KEN L
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So, the problem was? If you turn off the blower motor by removing the fuse the problem would be the blower motor power resistor shorted out which causes the blower to run continuously, here is the location for you so you can change it out. Install the fuse to see if it is the front or rear blower speed control causing the issue. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
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Saturday, October 15th, 2022 AT 12:31 PM
Tiny
SAMASONIS
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  • 12 POSTS
The issue was from this little computer device that was mounted in the boot left side inside the panel cover. I remove it and drive the car around and nothing has failed or played up to tell which system is control by it.
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Saturday, October 15th, 2022 AT 12:39 PM
Tiny
SAMASONIS
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  • 12 POSTS
That's what cause the drain overnight of 0.12A.
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Saturday, October 15th, 2022 AT 12:47 PM
Tiny
KEN L
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That look like the light control or bulb out warning module. Can you upload a picture of the wiring color so I can look it up top be sure?
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Sunday, October 16th, 2022 AT 1:58 PM
Tiny
SAMASONIS
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I’ll give you a photo once my brother gets back home from his travel. He is away from home for a week.
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Wednesday, October 19th, 2022 AT 1:20 AM
Tiny
KEN L
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Sounds good let me know.
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Wednesday, October 19th, 2022 AT 12:28 PM

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