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Author Topic: 80 amp fuse blown. car went dead. changed fuse.only 1 2 3 gears working.  (Read 4568 times)

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lenny

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hello there i need help.
                                fuse blown 80amp. changed fuse. got home on 1 2 3. drive gear not working.i have just bought a gearbox e c u.but just a thought would the gearbox selector faulty. its just the fitter started car up and put it in gear and he tells me there is a short somewhere.would you help please.
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TheBoy

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Why did you buy a new ECU  ???

Which 80A fuse is it, I'll look through wiring diagrams...
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lenny

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because i went down the route where i thought while i could only get the first 3 gears it might be the gearbox e c u.it was one of the big fuses on top of battery box.
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Andy H

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because i went down the route where i thought while i could only get the first 3 gears it might be the gearbox e c u.it was one of the big fuses on top of battery box.
Yep, 80A fuses are on top of the battery.

To track down why it blew it would be helpful to know which one.
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RobG

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Reading from left to right in battery fusebox
FV1 (80 amp) - is ABS and traction control
FV2 (80 amp) - is Main Engine Relay and glowplug timer
FV3 (30 amp) - is Motronic Control Unit 
FV4 (80 amp) - is to the ignition switch
FV5 (80 amp) - is to fuses 1,6,7,10,20,25,27,29
FV6 (80 amp) - is to fuses 5,12,17,24, 33 (air con)
If yours is petrol will not have FV2
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lenny

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no its a td
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lenny

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if the e c u to the gearbox went. would it blow one of the 80 amp fuse
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TheBoy

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if the e c u to the gearbox went. would it blow one of the 80 amp fuse
Doubt it, it would take out one of the smaller fuses first.
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TheBoy

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Can you tell us which 80A fuse blew. Then we can help :)

Where in Northampton are you?
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lenny

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well hello there again
                               well this is the state of play ref the td estate. car was going so lovely.when it suddenly stopped with all the electrics went dead except the hazzard warning lights.when i opened the fuse box on the top of battery one of the 80amp fuses was blown.cant remember which one as i went into panic mode myself. but anyway i found a 50amp fuse and then all the electrics reapeared .got into car put it in gear and found that i only had 1 2 3 gears. no d .drive.got the car back from leeds to swindon. then took it into a garage i know.well i did buy autobox e c u.as i was told it may be that.the outcome is that the wiring loom under glove box is getting hot. the centre gearbox lights stay on all the time.ie there is a short going on. now ive been told when you start car up of which it starts up fine. when you put it in gear the engine stops and there is smoke coming from glove box area.and of course the gearbox centre counsul lights are on all the time. the gearbox e c u was fitted but this did not make a difference.garage owner do not know what to do now and said its time it went in the sky to heaven. befour i make up my mind what to .would somebody help me to put me on the right path. the said car has the ar35 autobox in.so please help. as i have splashed out a lot of money on this car to keep it going we are talking a best part of £1500 with labour bills. so you can amagine im abit pissed off now.
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TheBoy

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FFS, get it away from people who don't know what they are doing, and to someone who does.  I'm sure there are local members who can assist - finding a shorting out wiring fault should be fairly trivial.

Sadly, if we don't know which fuse blew, it needs someone to actually look, as virtually everything runs through one of those 80A fuses.
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lenny

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for what i have written on this site. would the gearbox selector switch cause me all this heartache
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martin42

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As stated it really would help to know which 80amp fuse blew,then some1 can then go into more detail as to what the problem is,as you have replaced it with a 50 amp it should be easy enough to tell which 1 it is  :y
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lenny

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i think it was the 2nd one in from the front of car. anyway i have got a gearbox selector switch.and it will be fitted tomorrow i hope.if this is fitted and no improvement . then im afraid it will have to go in the sky or somebody buy it off me with a spare engine.engine has all the stuff on it ie the fuel pump the alternator its all there just have to put it in . i also have a fairley new starter and also a turbo unit. plus other stuff i have collected. this will be the last omega i will have of which i have had five.
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Omegatoy

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if you stil want to sell at the end of the month i will be interested!! as i will be in swindon!! :y
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