2000 Toyota Tundra Battery Light On

How to Reset a Tundra ECU.

2000 toyota tundra battery light on. Now its reset back to factory specs not accounting for a dirty throttle body. The battery light comes on when it detects that the voltage in the battery is too low. It has some carbon build up and when the battery went dead the computer lost its learned values one of which is base throttle position.

When the battery drains when parked the odds are that its the battery itself. If your alt is putting out say 135 volts but you still only see 11 or 12 at the battery post the cable between the battery and alt is dropping voltage. Tighten the nut with pliers.

The brighter the light the bigger the drain. Ya 75k is a little low for the alt to go out. 06 toyota tacoma with 126k battery light came on hooked up DVOM charging 138volts with the light still on.

Your 2000 Toyota Tundra needs a reliable battery to run optimally. Attach the other end to the cable you just removed. 2000 Tundra AC Just to be clear the Check Engine light and battery light coming on are not an indication of any problem.

Whenever the brushes on the inside of the alternator are starting to go or the voltage regulator is starting to fail the charge light will start flickeringflashing in a somewhat regular pattern. Reconnect the negative battery cable clamp to the negative terminal of the battery. All seems normal except the light staying on while running.

Maintenance Repair I have a 2000 Tundra EBrake light on. The 2000 Toyota Tundra ECU is located above the gas pedal close to the steering column. The battery light on the dash stays on right from key on and never goes out.