2001 Toyota Tundra Battery Drain

The battery is not holding a charge after a week or so of sitting idle. Toyota Tundra Electrical - Slow Batty Draining. Everything electrical seems to work fine.

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Im not sure how long its been doing this because previously I was driving the.

2001 toyota tundra battery drain. Jump to Latest Follow. Seems the frist half of the production year 2003 Tundra has a problem with the tow package relay being left energized if you leave the lights in the daytime running position so that they turn off by. The average cost for a Toyota Tundra battery test is between 35 and 44.

The only thing you can to is run an ammeter in series with the positive terminal of the battery. They said there was nothing wrong with the battery and could not find anything that was draining the battery. Ive been chasing a battery drain for almost six months now.

If the battery is draining while youre driving that is probably going to be the alternator or battery. If your Toyota Tundras battery is draining its something thatll need addressing right away. That is a tough problem to solve as there are many items connected to the main 12V rail and any one of them can be causing the slow drain.

4 lo light blinks vsc light blink check engine light on continuously all three of these lights are coming on. All electrical items seems to function okay. Ive had the battery and alternator tested multiples times and both always test good.

I brought it to the dealer 3 times to have them look at the problem. Toyota Tundra Forums 253K members. Alot of the time I only find draws of 05amps but that will kill a battery.

2001 mystery drain on battery when parked. 2003 Tundra V8 47L. Also when you push on accelerator - nothing engines just idles.