Close
2004 tahoe, battery dies in 2 days, abs draws 3+ amps when off.
1995 Chevrolet Tahoe

2004 Tahoe, battery dies in 2 days, ABS draws 3+ amps when off.

(1995 Chevrolet Tahoe)
Pulled fuse, battery does not die in over a week. Any thoughts? Just a sensor or the whole module? I see no reason why this needs power when vehicle is off. The rest of everything (ostensibly CPU, radio memory, etc. pulls under 0.2 A.

Can I put a switch on it, under/on the dash? Not a show vehicle by any means. Mostly used for grocery runs and puppy transport.

No OBD codes other than low battery warning.
What seems to make the problem better or worse? Tried all fuses one at a time. ABS/60A fuse is the one.
How long have you had this problem? 2-3 months
Tags: chevrolet, tahoe
1 answer & 1 comment
Popular Answer
on September 24, 2019

3 amp draw would easily discharge the battery overnight - actually sooner.

Google > parasitic load test so you can make certain the testing is being performed correctly.

You could install a *battery disconnect* if that is what you’d rather do - however that will erase the PCM memory easy time the disconnect is used - that may lead to drivability issues upon next trip.
Sign in to reply
on September 25, 2019

There is a very informative YouTube video posted by “Eric The Car Guy” showing correct parasitic load testing procedures and maximum allowable current draw - Google will have this on the resulting page - - watching the video is worth while!

Good luck!
General Diagnosis
$88 - $111 Learn More
on September 24, 2019

3 amp draw would easily discharge the battery overnight - actually sooner.

Google > parasitic load test so you can make certain the testing is being performed correctly.

You could install a *battery disconnect* if that is what you’d rather do - however that will erase the PCM memory easy time the disconnect is used - that may lead to drivability issues upon next trip.
Sign in to reply
on September 25, 2019

There is a very informative YouTube video posted by “Eric The Car Guy” showing correct parasitic load testing procedures and maximum allowable current draw - Google will have this on the resulting page - - watching the video is worth while!

Good luck!

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
I can get up to speed just fine as long as i push gas slightly like normal but if i was to speed up quickly and stomp...
I turn the ac on and nothing happens. i will be driving and it will just kick on. if i turn the truck off and then...