Question about 2000 Chevrolet Impala

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I have a 2000 impala and the abs/pcm fuse keeps blowing when I turn the key on the fuse blows out when the key is off it doesnt blow

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Posted on Jan 02, 2017

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SOURCE: fuse keeps blowing

If fuse keeps blowing that means that there is a shortage on AC wiring or switch controlling the air conditioner.

Also an abnormal power draw from AC caused by an internal fault on AC can cause the fuse to blow.
Test wiring and switch with a voltmeter, the most common is that there is a short to ground between wiring and car body somewere.

Posted on Apr 29, 2009

  • 3854 Answers

SOURCE: fuel pump fuse blows

Check the fuel pump relay, i am not sure but i think there are two of them. Check the wire harness too, mice may have chewed in to the wires causing a shot in the system. 
Good luck and hope this helps.

Posted on May 09, 2009

  • 1 Answer

SOURCE: engine 1 fuse keeps blowing when you turn the key

Engine 1 fuse powers the computer and some sensors. I had this same problem on a 98 chevy van 3500 and found the wire going to one of the oxygen sensors had shorted out on the heat shield. Inspect the wires going to all of the oxygen sensors. On this van one of the oxygen sensors on the driverside the wire was laying on the heat shield which eventually rubbed through the wire and shorted it out blowing the fuse. Your short could be on a different sensor but check all of the oxygen sensors because the wire runs so close to the sharp heat shield.

Posted on Aug 06, 2009

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SOURCE: my fuse to the cooling fan in my 95 ss impala

I'm going to assume that you are referring to the blower fan...when the fuse blows it is telling you that there is a short in the system or excessive amperage draw...Most often it is caused by the blower motor itself that has worn out and drawing too much amperage in order to turn. Resist the temptation to just replace the fuse with a larger one...that will cause failure elsewhere in the system as well.

Posted on Sep 07, 2009

  • 1 Answer

SOURCE: gauges blow fuses,brake and turn signal lights dont work

all my gauges quit working and my turnsignals checked all my fuses under the hood and dash whats my problem?

Posted on Mar 03, 2010

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2004 Ford Ranger 10 amp fuse keeps blowing no brake lights,abs, turn signals?

Fuses blow because there is an overload on the system. If the fuse blows when you step on the brakes then there may be a short in the wiring from the brake light switch to the lights, abs module or turn signal switch. If the fuse blows when you turn the key on then there is likely a short in the wiring to the brake light switch. Basically you will need a wiring schematic to check the wires at the switch and at each of the loads. Also verify that the fuse is supposed to be a 10 amp fuse. Hope this helps

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that could be a tricky situation because you don't know if it's the pcm itself or a circuit that it controls. first you must know whether or not it is a short in the power or ground supplies to the pcm, then if that is all ok, you have to disconnect all sensors, injectors, etc, everything that it controls and see if it blows a fuse. if it doesn't, then you have to hook them back up one by one and see which one will blow the fuse.

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There are two PCM 10amp fuses that power the computer. The computer provides grounds to some 20 or 30 different circuits. Any one of those circuits could blow one or both of the 10amp fuses.
I would probably unplug the PCM and see if the fuses still blow. If not, you will need to pin test each circuit from the PCM to find the short. And you'll need a shop manual to get the wiring diagrams for those circuits.

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Blowes the pcm fuse when key turn on

Hi, if you have the 4-cylinder, only the PCM and the ignition is on this fuse. If you have the V-6, the camshaft and crankshaft sensors are also on it. What I recommend is to disconnect everything on the fuse except the PCM, and then turn the key on. If the fuse blows, you know your PCM is shorted. If it doesn't blow, reconnect the ignition module and turn the key on again. If the fuse blows, you know the ignition is bad. If not, plug in the sensors one at a time to see which one is shorted. The location of the sensors are shown below, but there are 2 possible locations for the crankshaft sensor. The ignition module is under the coil pack. Please let me know if you have any questions, and thanks for using FixYa.




Ignition module

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My 2000 VW Beetle's Ac stopped working. It doesnt blow any air out at all. Also the break light and the ABS lights are on. The ABS came on after the breaks got changed. The Break light is blinking and...

Sounds like you have some electrical gremlins that have moved in...

Since the fan does not even come on, and the fuses keep blowing. It sounds like the resistor pack for the blower motor could have failed, or a wire is shorted somewhere.

The ABS could simply be a wire, or sensor that was carelessly overlooked to be plugged back in when the breaks were done. Or it could be more serious.

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I keep blowing my ABS fuse in my 2000 monte carlo.

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