help, I blew something big

[nail"em]

Hi
Can anyone offer advice please,

I was hooking up an led reverse light, i found a wire coming from the ignition switch that was live and terminated in insulation tape going nowhere, I was stripping the insulation to join a wire to the light switch and earthed the pliers on the body.
A big spark and I lost power to ignition, I cant use electric windows either.
I get a fast ticking noise coming from under the dash so gotta disconnect the battery, the wire was live even with ignition turned off, I have an after market immobiliser/alarm which i turned off in the engine bay, but the ticking noise still happens when i reconnect the battery.
Any help would be appreciated as i cant lock it or wind up the windows, just prayin it dont rain

[the evil twin]

Model and Engine would help...

[nail"em]

2004 gu4 st zd30

[Clunk]

Checked all your fuses?

[nail"em]

The big square fuses in the engine bay, can you put a light tester on them or are they only visual

[nail"em]

i just checked all the dash fuses and they are ok,
2 fuse boxes in the engine bay but dont know if they can be tested with the light tester

[Clunk]

Not sure mate but I always thought that fuses were visual. ... cant say for a zd30 because Ive not seen the engine bay...... could they be relays you're looking at? What colour are they?

[nail"em]

they are square with 100 and 50 and 30 written on them

[4bye4]

PM Yendor mate, and hope hes on line.

[Clunk]

they are square with 100 and 50 and 30 written on them
Ok definitely fuses then...... hopefully someone in the know will come along and help you our..... or PM Yendor as 4bye4 said

[nail"em]

Thanks guys,

I put Yendor in the pm message,

is that all i have to do for him to get the message? I just wrote yendor in the to field

[the evil twin]

If you don't have a meter to test the fusible links...

Take them out
Put one pin on the battery +ve, your test light on the other pin and the clip to earth
Light = good, no light = bad

[happygu]

These are the Main Fuses and you should be able to see if one of them is blown by looking through the top - there should be a thin piece of copper going across the top which links the two pins and transfers the 12V feed through to the car. This thin strip inside will melt and separate, so that you can see a gap when they blow.

If you cant see that, then remove them, and check them with a Multimeter if you have one.

[BigRAWesty]

In my 08 crd I have a 2 lots of relay and fuses in the engine bay.
One next to the battery and the other on the fire wall side of the battery..
Both house relays and fuses..

But.. if it was a main fuse all would be dead.. hopefully you haven't fried the ignition barrel

[Bacho86]

As others have said you'll want to be checking all the fuseable links to see what you tripped.

I tripped the big blue one in the middle once before when shorting out tools on the body whilst working on the 12v system

http://www.nissanpatrol.com.au/forums/images/imported/2016/04/150.jpg


Sent from my iPhone using Tapatalk

[threedogs]

The in the foot well there are some fuses in the kick panel on the drivers side

[dom14]

Hi
Can anyone offer advice please,

I was hooking up an led reverse light, i found a wire coming from the ignition switch that was live and terminated in insulation tape going nowhere, I was stripping the insulation to join a wire to the light switch and earthed the pliers on the body.

I'm trying to understand your mishap.
Are you saying you knew the "mystery wire" with the termination was battery positive line to start with or found out after accidentally short circuiting it?
I'm guessing it's the latter.
I can understand accidentally short circuiting a positive wire to earth by sticking pliers near it, but I can't understand the reason to strip the termination insulation off when you know it's not related to your job(hooking up an LED reverse light).


A big spark and I lost power to ignition, I cant use electric windows either.
I get a fast ticking noise coming from under the dash so gotta disconnect the battery, the wire was live even with ignition turned off, I have an after market immobiliser/alarm which i turned off in the engine bay, but the ticking noise still happens when i reconnect the battery.
Any help would be appreciated as i cant lock it or wind up the windows, just prayin it dont rain

I'm guessing the terminated wire with insulation might have been immobilizer/alarm related wire. Perhaps a redundant wire for the(a) rear door?!!

How did you turn off the aftermarket immobilizer? Did you switch it off from the unit?
You may have cooked the relay related to the immobilizer/alarm.

Check that relay for functionality.

[Yendor]

You more then likely have blown the 50 amp fuse. Bottom right in Bacho86 picture.

I've replied to your a PM.

[the evil twin]

I'm suprised anything works on Bacho86 truck... 1/2 his fuses have been put in upside down

[GeeYou8]

I'm suprised anything works on Bacho86 truck... 1/2 his fuses have been put in upside down
Always fit replacement fuses upside down, easier for fault finding later when you forgot what you have done already.
Graham

[the evil twin]

Always fit replacement fuses upside down, easier for fault finding later when you forgot what you have done already.
Graham

Now I am even more suprised anything works on Bacho86 truck... at least 1/2 his shit has shorted out at some point.

(Sorry, Graham, couldn't resist)

[Bacho86]

I'm suprised anything works on Bacho86 truck... 1/2 his fuses have been put in upside down


Now I am even more suprised anything works on Bacho86 truck... at least 1/2 his shit has shorted out at some point.

(Sorry, Graham, couldn't resist)

Does it matter which way fuses are installed? (Too early in the morning to tell if you're pulling my leg [emoji854] ... Lol)

First time I'd open that hatch that housed all the fuses l, pretty sure they were all like that already though...

[Winnie]

Does it matter which way fuses are installed? (Too early in the morning to tell if you're pulling my leg [emoji854] ... Lol)

First time I'd open that hatch that housed all the fuses l, pretty sure they were all like that already though...
Just use this method to work out if you're being had...

Is the post by ET?
No - further investigations required
Yes - the post is full of sarcasm

[the evil twin]

... hurt most deeply am I by that

[dom14]

i'm suprised anything works on bacho86 truck... 1/2 his fuses have been put in upside down

My thoughts too. :D ;)

[dom14]

Does it matter which way fuses are installed? (Too early in the morning to tell if you're pulling my leg [emoji854] ... Lol)

First time I'd open that hatch that housed all the fuses l, pretty sure they were all like that already though...

Now, I'm dying to find out how you managed to post the upside down smiley. :)

[the evil twin]

snip...
Does it matter which way fuses are installed? .

AC fuses - No it doesn't as the current flows one way 1/2 the time and the other way for the other 1/2.

DC fuses - Yes, the +ve is the larger leg (just like the +ve terminal on a battery is larger than the -ve)

In a DC circuit the voltage drop in the wiring mean there is less arriving at the -ve terminal

[Kimbo63]

That takes us back to Winnie's method in post #23 lol

[Bacho86]

Now, I'm dying to find out how you managed to post the upside down smiley. :)

Well I thought it was appropriate given the topic... Upside down Smiley face is a standard option on iPhone

http://www.nissanpatrol.com.au/forums/images/imported/2016/04/163.jpg

[GeeYou8]

AC fuses - No it doesn't as the current flows one way 1/2 the time and the other way for the other 1/2.

DC fuses - Yes, the +ve is the larger leg (just like the +ve terminal on a battery is larger than the -ve)

In a DC circuit the voltage drop in the wiring mean there is less arriving at the -ve terminal

This is a common mistake that comes about because it was thought that electricity flowed from positive to negative. We now know that it is actually electrons flowing from negative to positive. The positive terminal still has to be the larger one to catch all the loose electrons.
You can test this theory yourself, the nozzle on the end of the garden hose is about 1/4'' diameter where the water comes out, but you need a much bigger area to catch the water that has come out.

If you are using AC fuses on a DC circuit you should take them out and reverse them once a week.
Graham

[Touses]

... hurt most deeply am I by that

Back away slowly people! He's gone into Yoda mode!

Seen before this have not I!

[the evil twin]

Back away slowly people! He's gone into Yoda mode!

Seen before this have not I!

Hehehehe...

P.S. I like your Sig, I'm not stubborn either... I prefer the term 'Mission Focused' and not in the biblical sense.

[Touses]

Hehehehe...

P.S. I like your Sig, I'm not stubborn either... I prefer the term 'Mission Focused' and not in the biblical sense.

I understand completely brother.

Most people have no idea of the sacrifrice required to achieve being constantly right!

Intelligence is a burden. Thank Christ for alcohol! :1062::1062:

[mudnut]

This is a common mistake that comes about because it was thought that electricity flowed from positive to negative. We now know that it is actually electrons flowing from negative to positive. The positive terminal still has to be the larger one to catch all the loose electrons.
You can test this theory yourself, the nozzle on the end of the garden hose is about 1/4'' diameter where the water comes out, but you need a much bigger area to catch the water that has come out.

If you are using AC fuses on a DC circuit you should take them out and reverse them once a week.
Graham

You've all got it wrong. Lectricity is made of smoke not electrons and all that guff. When a circuit fails it releases the smoke and doesn't work so you have to replace these little canisters. The manufacturers call them capacitors so we think it is hard to make them.

[Hodge]

The other thing people always forget is , like water, electricity can't flow upwards. Which is why batteries are always up high in the engine bay to gravity feed everything.

Sent from my SM-G920I using Tapatalk

[Touses]

Hey Evil. Given the two posts prior to this, I am vindicated! LOL

[the evil twin]

Hey Evil. Given the two posts prior to this, I am vindicated! LOL

Vindicated eh...
That is what they call what happens after a large plate of Vindaloo isn't it?
IE the antonym of constipated

[GeeYou8]

You've all got it wrong. Lectricity is made of smoke not electrons and all that guff. When a circuit fails it releases the smoke and doesn't work so you have to replace these little canisters. The manufacturers call them capacitors so we think it is hard to make them.
There is special blue smoke that is used in Lucas auto electrics, it is much harder to keep contained that is why they have so many failures.
Does this mean I should stop calling those canisters condensers?
Graham

[GeeYou8]

Vindicated eh...
That is what they call what happens after a large plate of Vindaloo isn't it?
IE the antonym of constipated
I thought Vindicated was the V indication that you made with 2 fingers when someone cut you off.

[dom14]

The other thing people always forget is , like water, electricity can't flow upwards. Which is why batteries are always up high in the engine bay to gravity feed everything.


Damn! I'm getting the best education I've ever got about electrickery from here. :D

[dom14]

I thought Vindicated was the V indication that you made with 2 fingers when someone cut you off.

A........hm. I actually use a "flip bird" indication in such scenarios. You only need the middle finger for that. :)

[mudnut]

There is special blue smoke that is used in Lucas auto electrics, it is much harder to keep contained that is why they have so many failures.
Does this mean I should stop calling those canisters condensers?
Graham

Ahh, the condensor is a capacitor with special mounting points so they can charge way more for them.

[AGman]

The industry also has whats called an ESR (Equivalent Series Resistance) meter that they say is helpful in checking the capacitor but what it really does is just check the smoke level remaining. (Effective Smoke Reserve)

[GeeYou8]

The other thing people always forget is , like water, electricity can't flow upwards. Which is why batteries are always up high in the engine bay to gravity feed everything.
This also why batteries are so heavy, so they can push the electricity down harder.
Graham

[GeeYou8]

The industry also has whats called an ESR (Equivalent Series Resistance) meter that they say is helpful in checking the capacitor but what it really does is just check the smoke level remaining. (Effective Smoke Reserve)
Resistance is useless.

[Woof]

Hey mate, it is always nice to post up an introduction prior to asking for assistance, just something we like to see here

[dom14]

This is a common mistake that comes about because it was thought that electricity flowed from positive to negative.

For all practical calculation purposes, it's quite ok to think like that.

The reason for electrons being pictured as negatively charged goes back to the model of the atom, where electrons were said to negatively charged and protons were positively charged. So, when it came to explaining the electricity, we couldn't simply switch the early agreement on the charge status of the electrons, as we knew from early times of electricity that the electrons were kinda involved in electricity.

We could have agreed upon a standard that says otherwise, as electrons being positively charged and protons being negatively charged. All our calculations and thinking in physics would have worked just fine either way.


We now know that it is actually electrons flowing from negative to positive.

Actually we don't know that. One thing we do know is that electrons don't "flow" from negative battery lead to the positive lead like water flowing in a pipe. It's more accurate to visualize it as either zig zag motion of electrons bouncing between atoms or electrons jumping off one atom and hitting the other and the continuation of the process on each adjacent atom(or ion).
Either way, it's the energy(or charge) that flows. Chemical energy stored in the battery, flows from terminal to the other. Electrons facilitate that energy flow process by being charge/energy carriers.

This is a good article on this topic.
http://electronics.stackexchange.com/questions/72875/do-electrons-actually-flow-when-a-voltage-is-applied

And this,
http://www.allaboutcircuits.com/textbook/direct-current/chpt-1/conventional-versus-electron-flow/

And this,
http://www.qrg.northwestern.edu/projects/vss/docs/power/2-whats-electron-flow.html


The positive terminal still has to be the larger one to catch all the loose electrons.

More accurate to say to catch the charge or energy.


You can test this theory yourself, the nozzle on the end of the garden hose is about 1/4'' diameter where the water comes out, but you need a much bigger area to catch the water that has come out.

Water flowing from one end of a pipe to the other does help explaining the behaviour of electricity, but it has limitations when it comes to explaining what electricity is, how it "travels" from one end to the other with the help of subatomic particles like electrons or ions.


If you are using AC fuses on a DC circuit you should take them out and reverse them once a week.
Graham

It's apparently a bad idea to use AC fuses in DC circuits.

http://solarhomestead.com/difference-between-ac-and-dc-fuses/

How does the once a week reversing of the AC fuse in DC circuits help?

[Touses]

Vindicated eh...
That is what they call what happens after a large plate of Vindaloo isn't it?
IE the antonym of constipated

Re the dodgy Vindaloo, the word you're looking for there is vindiancated. teehee

[the evil twin]

Hey mate, it is always nice to post up an introduction prior to asking for assistance, just something we like to see here

Bite me...

[AGman]

Resistance is useless.

Why? Isn't that what the Borg say?

[the evil twin]

Why? Isn't that what the Borg say?

ROFL... close... "Resistance is useless" is Vogon.

The Borg say "resistance is futile"

Oh, and for the record, it was Linda Lovelace who said "Help, I blew something big"

[AGman]

Ah...gotcha...

[mudnut]

It was Linda Lovelace who said "Help, I blew something big"

And there it is.

[Yendor]

ROFL... close... "Resistance is useless" is Vogon.

The Borg say "resistance is futile"

Oh, and for the record, it was Linda Lovelace who said "Help, I blew something big"

Showing your age now ET :)

[the evil twin]

Showing your age now ET :)

Yep, three all time classics... Hitchhikers Guide, Star Trek and Deep Throat

[AGman]

Star Trek I knew...had to google the other 2.

[Yendor]

Yep, three all time classics... Hitchhikers Guide, Star Trek and Deep Throat

So why is the answer 42?

[the evil twin]

Star Trek I knew...had to google the other 2.

Ouch... you young un's really know how to hurt a poor old pensioner... :-)

[GeeYou8]

ROFL... close... "Resistance is useless" is Vogon.

The Borg say "resistance is futile"

Oh, and for the record, it was Linda Lovelace who said "Help, I blew something big"

I tossed up between futile & useless, I thought HHGTTG was a little more subtle.
66537
Graham

[AGman]

That's so corny...:)

[Bigcol]

Yep, three all time classics... Hitchhikers Guide, Star Trek and Deep Throat


you forgot Catch 22,

[dom14]

Showing your age now ET :)

Thought has never crossed my mind that ET could be 150+ years old. ;) :D
Now I know why he doesn't like me. ;)

[the evil twin]

Thought has never crossed my mind that ET could be 150+ years old. ;) :D
Now I know why he doesn't like me. ;)

I try to hate everyone at least once a day... it keeps some of the voices in my head amused.

If I really hated anyone they would never be in doubt, believe you me... just ask Doggy (witness not target)

[Bigcol]

Thought has never crossed my mind that ET could be 150+ years old. ;) :D


dont have to be 150+ years old to have seen the TV shows on the first 2 and watched the movie of the 3rd one (several times)

ahhhh Hitchhikers Guide - Friday nights on ABC, after Parkinson and before Rage..................

[dom14]

dont have to be 150+ years old to have seen the TV shows on the first 2 and watched the movie of the 3rd one (several times)

ahhhh Hitchhikers Guide - Friday nights on ABC, after Parkinson and before Rage..................

I can't wait to see "Deep Throat" now. ;) :D
I thought pornography didn't exist in 70's 'cos it was illegal back then. :P
Sounds like 70's were more liberal than now. ;)

[jay see]

I can't wait to see "Deep Throat" now. ;) :D
I thought pornography didn't exist in 70's 'cos it was illegal back then. :P
Sounds like 70's were more liberal than now. ;)

I read this and thought, better go back to the start and see what this thread is all about. Yes, you got my attention.

Well, that all went to sh!t.

Did he end up sorting out his issue?

[dom14]

I read this and thought, better go back to the start and see what this thread is all about. Yes, you got my attention.

Well, that all went to sh!t.

Did he end up sorting out his issue?

Are you saying the OP's problem has nothing to do with "Deep Throat" thingy?! :D

Come to think of it, that's correct. He blew something big in his car, not somebody's. ;)

I thought he might have blown a relay/fuse related to the immobilizer.
I asked him about the reason he had to open up an insulated wire under the dash, and I've got no answer.
He was wiring up a reverse LED light.
I thought we either start at the reverse light switch on the gear lever or simply wire the
the extra LED to the existing reverse light line at the rear of the car.

[Makka]

just to let every one know i own mini's and still have some bottles of lucus smoke ...... 63 to 65 67 to 69 71thru 77 diferent years for diferent viscositys ......the 63 thru 65 is for generator positive earth only very rare

[the evil twin]

just to let every one know i own mini's and still have some bottles of lucus smoke ...... 63 to 65 67 to 69 71thru 77 diferent years for diferent viscositys ......the 63 thru 65 is for generator positive earth only very rare

Jeez, they will be worth a quid these days to the restorers.
You don't have any Aftermarket -ve radio into +ve earth Power Converter smoke do you?
That stuff is the shizz

[Makka]

ET will have a look pretty sure i even have a box of bright sparks somewhere

[Touses]

ET will have a look pretty sure i even have a box of bright sparks somewhere

Bloke have a look for some voltage drops too! Could use some of those!

[Makka]

will have a look but i think i run out of them but if you tie a knot in your power cable it will have the same effect just not as reliable

[Touses]

will have a look but i think i run out of them but if you tie a knot in your power cable it will have the same effect just not as reliable

Nah bloke no good, be concerned about leakage!

[Makka]

wrap alu foil around your head i stops leakage :D

[Touses]

Nah, tried that, it just magnifies the voices in my head!

[Makka]

then you got issues my freind :D

[GeeYou8]

Have you got a roll of Whitworth thread, I have got a roll & it is great for older British cars.
Graham

[mudnut]

Have you got a roll of Whitworth thread, I have got a roll & it is great for older British cars.
Graham

Is it BSF or BSW? Because if it is BSF then you should sell it ASAP because its shelf life is only 2 years.