2015 Subaru Outback 2.5, 90k miles.
I have a parasitic battery drain narrowed down to the 30A ABS REL fuse. I tried searching around for resolutions but can’t seem to find a good solution or if what I am experiencing is something unique.
Setup:
Multimeter set to current mode and placed in ckt between + lead on battery terminal and the car + lead wire supply.
Current shutdown draw when:
- battery connected with some time for computer/CAN system startup settling: 0.45A
- pulling out 30A ABS REL fuse: 0.04A (I went through each fuse under the hood one at a time and this one showed the change)
- plugging 30A ABS REL fuse: 0.04A, (note: no jump back up to 0.45A)
- steady state after pressing the “lock” “unlock” button on key fob: back to 0.45A
Note: This is repeatable, if I pull out the 30A ABS REL fuse and then replace it, the 0.45A–> 0.04A until I unlock/lock the door with the keyfob.
I had the battery tested and I’m told its still good. Duralast Gold.
For now, I have been disconnecting the battery when I get to work and reconnecting and have a Lithium Ion jump if needed. After today, I will just be popping the hood and taking the fuse out when not driving the thing.