Why is my battery and brake light flickering?

Brake and battery lights together indicate you have a problem with your charging system. Normally they both come on, which indicates you alternator died. If there flashing together, I’m going to assume that the volatge regulator within the alternator has trouble and you may be overcharging!

What stops an alternator from charging?

If one wire is disconnected or is damaged, then the power will stop being generated and running to the alternator. As a result, the alternator can’t charge the battery. The only solution is to figure out which wire is damaged and replace or repair the wire.

What will cause battery light to come on?

The cause of the battery light could be a loose or corroded battery cable or other wire connecting components of the charging system, or it might be a problem with the alternator or voltage regulator. The alternator generates the power that is stored in the battery.

What is wrong when battery light comes on?

The battery light on your car dashboard signals a charging problem with your car battery. If the light turns and stays on, it might be that your alternator isn’t generating enough voltage to charge it. Common causes can be a broken alternator belt, damaged battery cells or a failed alternator.

Where does the alternator go in a Mitsu?

The alternator harness goes to the fusebox and that diode or the “generator relay” that Mitsu calls it hangs around the fusebox. Then, you have those 4-white wires that go into the fusebox between the 100A fuse and the fusible link. I am doing a wire tuck right now.

Why does my alternator not charge the battery?

If I leave the generator relay unplugged, the battery light does not work at all. If I bridge the wires it will only come on with the car off and key forward. I did notice however that the battery light is slightly more dim than the rest of them. A picture of the back of the plug and what wires go where would be much appreciated.

Where does the charging warning light go on an alternator?

Black and yellow goes from the alternator plug to that generator relay. Blue wire goes from generator relay to that interior harness (C25) which goes to the instrument panel wiring (My 3rd pic the plug on the left) which looks to be for the instrument cluster for the “charging warning light”. Click to expand… Gotcha.

Can you drive a car with a faulty alternator?

Faulty diodes can easily be replaced, but you will need to dismantle the alternator. It is impossible to drive the car with a faulty alternator. While it is the work of the battery to power the electrical components in the car, it cannot do this alone.

What happens when the serpentine belt fails on an alternator?

The serpentine belt powers the alternator, and if it fails, the alternator will stop working the moment your belt wears out and breaks, or the pulley becomes damaged. This can also happen if the serpentine belt is not tightened correctly. Most cars have automatic tensioners, but these can fail, so it is better to double-check.

How do you know if an alternator needs to be replaced?

When this unit shorts out it can create a draw on the system, to check for this problem wait until the engine is cold, next locate the alternator and feel it with your hand to check for warmth, if the alternator is warm with a possible burning smell there is an internal short and the alternator must be replaced.