with the vehicle off, remove the negative battery cable from the battery terminal. wait for half an hour. this will give your computer sufficient time to power down. this is important. there a multiple size test lights to indicate different levels of amperage. with a cheap one from a thrift store this will indicate any significant draw. hook the test light to the negative cable and the other end of the test light to the negative post. essentially, you have just completed the circuit that you previously broke when you took the cable off. if there is a draw on the system, the light will come on. if your light is very bright it is a generic indsication that the draw is a significant amount. you can pull one fuse at a time until the light goes out. when you find the right circuit, the ttest light will go out. then you can at least know that it is the taillights, or interior lights, ore whatever that fuse controls. keep in mind that if you open the door on your car, the interior light s will come on and the test light will light up bright. this is a normal draw. sometimes you have to depress the button thaqt turns the interior lights on when the door is opened. this is a basic and not in depth way to check for draws. this will not show parasitic draws. but hopefully this will get you started
If you are certain it is not a faulty battery or alternator problem, the next step is to find what is shorting out or drawing current with the ignition in the off position. Could be a number of things: Have you had aftermarket accessories installed (shift light/digital gauges/stereo/amplifier/car alarm/etc?) that would be where id start first, then use a simple circuit tester. Disconnect the battery, clip a lead on the + battery wire, any circuit that is drawing current will make the tester light up when you short the circuit/wire under the dash using the probe..this will only show you what can pull current when the ignition is off Hope this makes sense
bulb no good.
how did you know that you have short? is the battery going low or dead on you?there is a way to find where the short is comming from.you need a tester,power tester.disconnect the battery negative end ,connect the tester between the battery negative and the negative cable.if the tester light comes on and stay.you have a short.start removing fuses until the light goes off.the last fuse you took off with the off light is the system that have a short.normally from alarm system that wiring installed wrong.good luck
Battery first. Will it start with a jump? Battery ok, then use a test light & see if you have current in the hot wire to solenoid when key turned. If you do, it's the starter. If not maybe the switch but start there.
You have a flat battery.
The reason for no ignition light could be a low battery. The wiring system may be another reason for this. Check the white wires in the ignition switch and the multi-plug connector to ensure they are connected.
If you are using a proximity tester that senses current flow in its vicinity, it is possible that the box where the light is connected may also be used as a junction box for a separate device.
Light bulb in the home - alternating current (A/C) Light bulb in a car - direct current (D/C) Output of a battery charger - direct current Input of a battery charger - usually alternating current
It could be a dome light. To find out what is draining the battery overnight you need to take off the negative battery terminal and put a test light or Voltage tester between the 2 terminals. With everything off and all the doors shut or open if you have the dome light turned off, the test light or voltage tester will light up or show voltage. Go to the fuse block and take a fuse out one by one. If the light goes out when you pull a particular fuse, then that is the circuit that is draining the battery and you can take a closer look at it.
In a battery-powered flashlight, chemical energy stored in the battery is converted into electrical energy when the battery generates a current. The electrical energy is then converted into light energy when the current passes through the light bulb or LED, producing light.
The voltage reg is sticking and will run down the battery.
why havent i got a battery light on when i turn the ignition.