Question about 2000 Lexus LS 400

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After blowing the ignition fuse when jumping the car, I cannot get the fuse legs to pull free of the box is there a trick to getting the fuse out

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They should just come right out. Get some penetrating oil and squirt a little bit one the fuse as close to those "legs" as u can, let sit a bit and hne try to gently work out the fuse. After you get it out, clean off the penetrating oil with a bit of electrical contact cleaner. ( just whats its called).

Posted on Jul 11, 2009

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Posted on Jan 02, 2017

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2000 JIMMY 4.3 WONT START AND KEEP BLOWING MAIN 40AMP FUSESE


What all does that fused supply B+ voltage too ? Do you know ? That would be your first thing to find out ! Do you know what a electrical distribution diagram is ? Do you know how to test electrical circuits with a DVOM - digital volt ohm meter ? Do you know what a short to ground is ?
Which fuse ? IGN A - 40 amp ,under hood fuse / relay box ? This fuse powers the Starter Relay and Ignition and Start Switch
Does your vehicle have a manual or automatic transmission ? The starter relay could be shorted inside , It's also located in the under hood fuse box . If you pull the relay out of the box it's plugged into an look on the bottom of it you would see four sets of numbers ! 30 & 87 an 85 & 86 . If you were to jump 30 to 87 in the relay box the starter should spin the engine over , not start an run just spin ! 85 & 86 is the control side . Could be the ignition switch !
That 40amp fuse powers a lot of subsystems !

Here is a web site for free diagrams !
http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine , Under system click on electrical distribution , under sub system click on power distribution . Then click the search button .Click blue links one at a time . First blue link scroll down to the second diagram . You will see Ign A 40 amp fuse at the top of the page .you will also see it powers the igintion switch ,look at last part of ignition switch , when in start or run that 40 amp fuse powers all those other fuse's plus three relays i see there also . A/C compressor relay , rear window defroster relay ,daytime running lights . Any one of those circuits could have your short . You need to isolate the circuits , pull fuse's till the fuse doesn't blow !

May 27, 2017 | Cars & Trucks

1 Answer

2001 Chevy blazer came out one day and it was dinging as if my key was in it got it to start with a jump shut it off took battery out and charged it put it back in when I turn the key I get NOTHING!


Check power an grounds for ignition switch , voltage drop test the starter circuit . Go to youtube an check out videos on basic electrical trouble shooting , voltage drop testing ,how to read a wiring diagram .Then go here http://www.bbbind.com/free_tsb.html free wiring diagram ! Look at power distribution under electrical distribution . Check main fuse's Maxi fuse's that power the ignition switch ,IGN.C fuse 20amp in underhood fuse box ,then check crank fuse 10amp in same fuse box .Check the starter relay in the under hood fuse box . Check the circuit form ignition switch to the starter relay , pull the relay out an look on the bottom you should see 4 set's of numbers 30 - 87 - 85 - 86 . Pin 30 or 87 should have battery voltage ,one or the other ,not both . if you jump those two at the base (where it plugs in ) not the relay pins . It should crank the engine ( if starter is good an there are no opens in the circuit ) Pin's 85 an 86 are the control side of the relay ! You may want to check out videos on how a relay works also > Good luck hope this helps

Apr 25, 2016 | Cars & Trucks

1 Answer

M38 fuse keep blowing


the parts are shorted, the FUSE stops the fire. and flames.
we fix this buy isolating the shorted part.
we do that with an ammeter. (there are other ways, ask)
i see the ammeter prove short then
i try each door manually , 1 by one form the local door switch lock
to see if one door blows the fuse when activated.
BINGO, so then unplug that door lock solenoid, still blow the fuse
(i use a fuse substitute device (sold in all good auto-stores) called a fuse, circuit breaker converter)
lock sol, removed, still blows?, yes? then harness shorts, (hard work)
if Sol, pulled cures over-current, its bad. a shorted soleniod.

there are other ways, ill just list them.
no ammeter?
no C-Breaker.?
  1. use a light bulb in place of fuse. (i use a head light in a box)
  2. a current limited power supply in place of fuse. (see over current)
  3. Pul all parts, 1 by one on this bad line and a box of fuses.
there are 4 ways.
I always use an amp clamp meter on the line
and the circuit breaker trick.
then pull parts. and conn. on the bad feed. (lots there are)

that's it, for shorts.

Mar 09, 2014 | Jeep Liberty Cars & Trucks

2 Answers

Kia radio no display after jump cable start - fuse not blown


Hi i had sa me issue jump started my kia rio radio display was blank. To fix open your fusebox inside the car Pull out both audio fuses your fuse puller should be in the fuse box under the hood. Yes you have two fuse boxes. One inside you car and one under the hood with your engine. wait few minutes say five... Put the fuse back in. Btw its not neccesary to pull the fuse all the way out. Your radio should show cde error... Now you will need to put in your four digit pin...gluck thanks to the guy on the internet who said pull out the memory fuse... Not that i understood till now.

Feb 17, 2013 | 2010 Kia Rio

2 Answers

How to bypass a fuel pump relay on ford falcon ef


connect the negative wire to the cars body..

connect the positive wire to the ignition wire ,, so it only turn on when you ignition turns on.. if needed for an emergency run it directly to the battery.

Dec 30, 2012 | Cars & Trucks

1 Answer

Diagram of a 2000 chevy express wiring of a starter


( one question i have is every time the ignition fuse blows do i need to replace the starter relay? ) NO ! You have a dead short to ground on one of the circuits that fuse feeds. Do you know how to find a short circuit ? Video's on youtube show how. The fuse that blows ,is it IGN - A 40 amp. located in the under hood fuse/ relay center ? That fuse feeds B+ voltage to the ignition switch ,which powers up other thing's ,fuse's etc.. Not just the starter relay ! I see five other fuse's that get power from that fuse when ignition switch is in the start or run position . In the I/P fuse panel the gauges fuse #4 10amp , air bag fuse #10 10amp , turn b/u fuse #16 20amp. , Plus trans fuse #20 10 amp ! Pull out these fuse an try to start the van. if the ignition fuse doesn't blow the problem is in one of these other fuse circuits. There is one more fuse that get's B+ power from the ignition switch and ign A fuse ,crank fuse fuse #8 10amp. this powers the control side of the starter relay .
You can find a free wiring diagram here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine . Under system click engine , under subsystem click starting. Click the search button then the blue link.
If you pull those fuse's i mention and it still blows the fuse look for a shorted ignition switch or wiring from ignition to the starter relay , not the relay itself. Park neutral safety switch . Isolate the circuit , pull the relay out of it's socket ,pull the crank fuse #8 in the I/P fuse box. with a ohm meter check to see if that part of the circuit is shorted to ground. Do you know how to do that ? Do you have a volt ohm meter ? You can buy one cheap at parts store .

Sep 14, 2017 | 2000 Chevrolet Express Cargo

1 Answer

99 cougar, new batt, found broken ignition fuse and replaced, will start with a jump,runs for a few mins then sputters and spits,, can keep it running by fluttering the gas, when it dies must get a jump.


Fuses don't simply wear out and blow. They blow because of a spike in amperage. Sounds like you have a short somewhere in your ignition system cause a spike which is gonna keep killing those fuses. I would bring the car to a good automotive electrical shop. Try to get a flat rate for diagnosis. Then it's your option to fix it or have them fix it.

Nov 27, 2009 | 1999 Mercury Cougar

1 Answer

Can't find fuse box on 2004 ford explorer.....


It would either be under dash or on side of kick panel, or behind or under glove box. Also under hood in black box on firewall.

If you find the fuse and it is good, than I would check the fusible link that runs off battery and heads to ignition system. The little black fuse inside fusible link can blow while jumping or connecting battery cables backwards.

Mar 11, 2009 | 2001 GMC Safari

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