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With the car in the off position, remove the negative battery cable and use a multi-meter to test continuity between the positive battery terminal and the engine block. If there is continuity, you have a short.

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βˆ™ 15y ago
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βˆ™ 11y ago

Remove the positive battery connector and fit a 12 volt bulb in between the connector and the battery terminal. If you have a short,the bulb will glow. Now go to the fuse box and remove fuses one by one until the bulb goes off. -Now you know which area the short is in, and can pursue it by examining the components in the area by sight and by using a meter.

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βˆ™ 11y ago

You can find a short in the electrical system by using an ohm meter ,,, check the wires between each other and earth ground . If the wires are shorted together or to ground the ohm meter will read a very low number indicating that there is no resistance ,,, If it is not shorted it will read a very high number or nothing at all. Example ,, with leads between wire blue and wire red read 20k ohm resistance (thus open ) wire black and wire grey read 1.2 ohm indicating that they are shorted together ...

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βˆ™ 12y ago

The best way is too look under the hood at all places where a ring terminal and black wire are screwed into the body or frame area with self tapping screws. Clean these terminals and the metal underneath with 180 grit sandpaper or a wire brush, use a multimeter (voltmeter) to check for energy coming from the newly cleaned terminal rings to the cleaned metal area, and the from the terminal ring to the negative post of the battery it should read 12-14v even when returning to ground, if it is reading significantly less than that you may want to trace the wire to it's source. I recommend finding and cleaning all of the terminal rings and mounting points before giving up and sandpaper is very cheap.

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βˆ™ 14y ago

To test for faulty wiring, ask a physican

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Q: How do you check for faulty wiring in a car?
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When you start the car your battery light comes on but you just got a new battery?

It could be a number of problems. It could be the sensor is bad, it could indicate a fault with the alternator, faulty leads, faulty wiring... it depends on the situation.


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We had the same problem in our '97. Check that your battery is fully charged and working properly, also check that the alt is working. If both of these are in working order it could be a faulty ground wire or the starter wire. Then, if those check out fine, I would start checking into your ignition switch and modular. I traced our issue backwards. If you know that the starter and the alt is good then it has to be in the electrical part of the car. Wiring or ignition. Hope this helps. If by chance it's something else please let me know. We finally found our problem in the ignition wiring. We had a bad wire going into the module. We have to push up on the wiring to get the starter to jump. Still a reliable car.


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