Question about 2002 Mitsubishi Montero Sport

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Fuse controling the air conditioner. I was taking off the alternator and forgot to disconnect the battery causing a short in this fuse.

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Posted on Jul 11, 2010


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I have a 1988 Honda CRV. I just put in a new alternator but forgot to take the battery cables off and blew the inline fuse. When I replaced the fuse it blows again when the battery hooks up to the...

big error that, can throw acid in the eyes, as battery explodes, if you do it wrong, so easy, lucky you did it on the safe side of fuse.?

pure random luck that, next time read the FSM before working electrics. every page tells you to pull then NEG battery lug first.
and the answer is, its shorted.
you never said the exact fuse, so i guess.
88 is very very old car,... docs hard to find.
here is the rules on electrics.
1: the fuse has a hot side, (Battery plus)
2: the fuse has a load side, (only you know this) and is shorted.

that's it, find the short by disconnecting the loads,
the fuse is expensive so I disonnect them all then add them back 1 by one till boom.
only takes 2 fuse, 1 to find it and 1 to drive after fixed.
do not fall trap to the dark side, of the force and use a jumper
for a fuse or you will have a fire, or battery acid in you face.
seen both so many times, as I yell to the guy, hey dont do that.... oops too late. NOOBS do get hurt all the time. even when warned
the battery is to be respected.
it can produces about 5000 watts of energy.
never ever, short this battery,

next post a , schematic, (close)
to post.


Sep 08, 2013 | Honda Cars & Trucks

1 Answer

We replaced the alternator and the battery and the belt tensioner but charging system light still stays on

There are two things that generally cause a battery warning after an alternator replacement. The most common is a loose connection either with the control plug (aka “relay” plug-in), charging line connection, or the ground. The other is a blown fuse or defective connector or relay, which could have been broken or shorted when the alternator was installed or on the first start-up after its installation.
You can check that the alternator is supplying enough power by starting the car and disconnecting the battery. If the car dies, the alternator isn't working properly (or a wiring/relay/fuse issue).

Mar 31, 2017 | 2006 Chevrolet Aveo LS

1 Answer

2002 Nissan Pathfinder _ Electrical Problems

Unusual the dealer can't or won't find the problem.
A mechanic would check everything in that circuit for shorts to ground.
Was the fuse blowing before the alternator and battery were replaced ?
Based on the wiring diagrams I would vote for a defective alternator.
The 10 amp fuse number 8 powers the cluster which also goes to the alternator. If the alternator shorts out internally it would blow that number 8 fuse and take the cluster with it.
The other circuits you mentioned are controlled by the key switch but are fused after the switch. So if the switch was causing the problem it should be blowing a 40amp fuse.
I would probably take the alternator off and have someone else test it.

Jul 09, 2012 | 2002 Nissan Pathfinder

1 Answer

No electrical power at all checked grounds,fuses,relay,etc 1989 none turbo supra with sport package

Check for a grounded positive wire from the battery or alternator. This could be in a wiring harness or actually in the Alternator or Starter. First disconnect the Alternator and see if you get power from the battery, if no reconnect the alternator and disconnect the starter and see if that allows you to get power from the battery, if no you have a grounded positive wire that is causing a short.

Feb 15, 2011 | 1989 Toyota Supra

1 Answer

The ecm fuse

Hi, this could be caused by a short circuit in the ECM or it more commonly found a short circuit in the alternator. Disconnect the battery wire from the alternator, make sure that the wire does not touch any part of the body or engine. Replace the fuse and see if it still blows the fuse. If the problem is solved, replace the alternator, if nor you will need to test the wires for a short circuit.

Nov 09, 2009 | Cars & Trucks

2 Answers

How do I get my traction off light and ABS light to go off?

When certain systems (anti-lock brakes, traction control or air bag) detect a problem (like low system voltage due to a bad alternator) the computer sets a fault code and turns on the light. The light often will not go out until the fault code is cleared from the computer's memory.
Try disconnecting the negative terminal from the battery for 1 minute and then re-installing it. This will erase the computer's memory and erase the fault codes set when the alternator failed. If the two lights come back on, that means that there is a problem in the systems (they are inter-connected). Check all the fuses to make sure that a fuse which might supply power to these two systems did not blow out when the alternator failed. Replace any bad fuses. If the lights still stay on, you will need to take it to a mechanic for diagnosis and repair.

Jun 14, 2009 | 2003 Chevrolet Impala

1 Answer

1998 Corvette drains the battery in less than 2 days.

No, corrosion will not cause a battery to drain, even if the corrosion is on the terminals. Several factors can cause battery drain, I would first have the battery tested to see if the battery it self is not bad. If the battery is good, then the most common is a short. All most all new cars have a certain amount of drain,(measured in milivolts) this drain is for clocks and computer memory's, and it would take several days of a vehicle sitting for the battery to be drained. Don't immediately assume you have a problem if you see 2-6 milivolts of drain on a battery with the key out, now if your battery is being drained after being parked over night, you have a problem. The easiest way to pin down the problem short is to disconnect your positive battery cable from the battery, take a 12 volt test light and clamp one end to the positive cable, and hold the probe to the positive post. Now if you have a short the light will come on. Have someone help you by pulling the fuses one at a time. If when a fuse is pulled the light goes out you have isolated the short to that system. If you pulled all the fuses and the light never went out try disconnecting all the wires from the alternator, 9 times outta 10 do this will let you know where your short is. If the system is not critical like power locks some people just leave the fuse out. 

Mar 05, 2009 | 1998 Chevrolet Corvette

2 Answers

Battery drains in a few days.

Usually what happens when the alternator has a faulty "conductor" i think its called;)

Nov 07, 2008 | 1992 Ford F250

1 Answer

2000 Ford Ranger 50 amp fuse burns out

Try disconnecting your alternator temporarily. It may have a shorted diode but that would also normally drain the battery too unless it charges over a relay.
The starter relay can't cause this alone and the currents through the ignition switch mostly control relays. If removing the alternator cable didn't work, I would remove the starter (only a few bolts) after disconnecting the ground cable from your battery and try turning it by hand. It should be stiff but not impossible and if it refuses to turn, it may have a short from the field to the case.  It isn't really possible to use a multimeter to check the starter's windings because they are very low resistance when normal (the beast draws 120-200 amps to start) and would look like shorts on a standard meter anyhow. 

Sep 27, 2008 | 2000 Ford Ranger SuperCab

5 Answers

2001 ford focus
you can get much information in this website,kindly stay a minute in website and check anyone link at a time

Jul 04, 2008 | 2001 Ford Focus

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