Battery drains flat over night. No lights on during this. ABS and brake light come on during idle shuts off after driving for a couple minutes.
Nov 18, 2017 at 7:53 AM
Battery draw
2008 MITSUBISHI GALANT
JOHN_123
- MEMBER
- 1 POST
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STEVE W.
- ✓ASE Certified Mechanic
- 15,200 POSTS
You need to perform a parasitic draw test to determine what is staying on. One way to do this is to remove the negative battery connection, then connect a test light in between. It will be on because of the draw. Then you start removing fuses one at a time until you find the reason for the battery drain. I would also test the battery to be sure it is okay, internal shorting can cause the same thing.
https://www.2carpros.com/articles/car-battery-dead-overnight
https://www.2carpros.com/articles/car-battery-load-test
If you have a good voltmeter there is a better way. It does not cause modules to wake up or give false test results. Go yo you tube and search for
" The Best Way TO Perform a Parasitic Draw Test" it is a video by the humble mechanic, it is much faster and does not cause other issues like disconnecting the battery can.
https://www.2carpros.com/articles/car-battery-dead-overnight
https://www.2carpros.com/articles/car-battery-load-test
If you have a good voltmeter there is a better way. It does not cause modules to wake up or give false test results. Go yo you tube and search for
" The Best Way TO Perform a Parasitic Draw Test" it is a video by the humble mechanic, it is much faster and does not cause other issues like disconnecting the battery can.
Nov 18, 2017 at 2:35 PM
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