2003 Toyota Tundra Battery Drain

And a battery will never charge back to 100.

2003 toyota tundra battery drain. 2005 tundra sr5 doublecab V8 slow drain on battery. Everything electrical seems to work fine. 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.

How to find battery drain. Funny enough it started the first time during the day not the later times. Midland MicroMobile 15W GMRS Two-Way Radio with Integrated Control Microphone.

Ive had the battery and alternator tested multiples times and both always test good. It doesnt take much to kill a battery in 3-5 days. Doesnt happen evey night and sometimes goes for 3 or 4 weeks before going dead.

I brought it to the dealer 3 times to have them look at the problem. 2003 Tundra V8 47L. If the battery is draining while youre driving that is probably going to be the alternator or battery.

My 01 Exploder had the OEM battery for 6 years and at the end of that time it got just like you state. I had a Compustar alarm with remote start in my 2002 Tundra. The 2003 Toyota Tundra has 2 problems reported for battery constantly drains.

Discussion in 1st Gen Tundras 2000-2006 started by SouthPaw May 31 2021. 2003 Tundra Limited 4x4 Trd Supercharger So after hooking my battery back up and disconnecting the radio the battery stilled drained down to 1219V. If there is a drain start pulling fuses one at a time until it goes away and youll find what is draining it.