How To Find & Wire In A Permanant or Ignition Live From A Car's Fuse Box

In this video, we will be wiring in an ignition and permanent live from a car's fusebox using a multimeter and a piggy back fuse.
/ torquesteer1
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[@davedingo542]

This is a great example of how a KZbin video should be presented. Relaxed presentation, simple language and explanations for all non-electricians. I am a fan.

[@MONKFISH000]

Exactly what I was thinking.

[@martinlyons2566]

Thank you for taking the time to make this video, car electrics are not my strong point, so watching this gave me the knowledge and confidence to wire up a live feed for my trailers smart relay.

[@Gedelinagadumpy]

Great thanks - especially the tip for temp earth wire! 🤛🏼

[@karlalliban]

Very helpful video. Spot on. Thanks!

[@Mookey1972]

Great video, thank you.

[@freelancer2011]

Thanks so much!!! 👍👍 Not used a multimeter before. I've been looking at dashcam installation vids. And, the only thing I couldn't figure-out was where to place the other black cable when testing. So, now, I obviously do. And, also now know another alias for the fuse tap cable/piggyback. 😀

[@ravenmaster6364]

brill mate, really helpful many thanks!

[@colinsmith1226]

Great video but to make sure the fuse is protecting the circuit you need to test which side of the fuse socket is live without your fuse in place.

[@TheC15jon]

Looks like that piggyback fuse holder has two fuses so the output wire must be protected whichever side goes to the battery to me...

[@Bad_Samaritan]

@@TheC15jon *That's not true.* The "front" one is for the original fuse if you are tapping into a slot that initially had a fuse. The "back" slot is for the device you are connecting to the fuse tap. The "far" leg of the fuse tap MUST go to the hot connector. Secondly, if you are tapping into a slot that already had a fuse, the original fuse has to be higher amperage than the new fuse. Last but not least, never tap into "important" fuses, like airbags, etc. Use something like fog light instead.

[@SouthCoastFinest]

I've set my multimeter up exactly the same way as you have shown and I am getting no readings whatsoever with the ignition either on or off.What the hell is going on?

[@sergioibarra5591]

You just saved me Thankyou very much !

[@ronniem3592]

This is the video i've been searching for --Similar videos are a waste of time---Thank-you very much!

[@LuizDahoraavida]

Thanks, didn't know about these piggyback fuse thingys

[@mjhodges2540]

Very good video mate thank you buddy top man

[@ScoutBobber_UK]

can i ask why you didnt use one of the spare slots?

[@rightdirectturgay9444]

Very helpful cheers mate

[@khalilrazak6486]

Thanks, excellent very clear video.

[@istones66]

excellent video...thanks !!!!

[@414ty]

Hi I’m thinking to use this method for my DVD player head rest because this doesn’t have memory cable so when I turn the key off position movie start again so if I do this can kill my battery thanks?

[@acousticmusiccollector]

hi your verry nice explintion.. i just asking how to find ignition wire if only trigger by unlock door 12 volts will apear.. on toyota highbrid 2019.. thank you so much sir

[@boxingempire5828]

Is there a difference between fuses that become live after turning the key vs actually starting the car? My DRL lights come on after starting the engine, but Im finding fuses that become live after just turning the key..

[@utah62]

I need a fuse to connect a dashcam which goes on when on contact and off when no contact. So this is the way to check? Thanks.

[@mr.marleydongles36]

Hey I have a 04 GMC Sierra crew cab and I brought a 400amp alternator cause I'm going to put some shit in my truck any way the harnest that came with the alternator has a long blue wire that says pigtail to ignition source in run position my question is can I do what you did in this video

[@6xcchamber971]

Will this work to hook up a standalone engine harness? Would I use the engine bay Distribution Box with a 30-40amp fuse? Much needed help. Thank you,

[@theCybershot123]

Well explained

[@DaveGym2.0]

Nice one

[@allnightgamer]

Great tutorial didn’t realise the black cable had to be in and earthed as well

[@andufuse640]

good lesson

[@legoguy707]

Great video, what wire from my head unit would I connect to the ignition live wire you installed?

[@csizzle1]

Remote wire

[@user-wt5dz3ez8r]

I need a switched live on an audi a4 b6. I've heard the heating fan is the one to piggy back off but it's only 10 amp. The radio is 20 amp. Can I run off this putting two ten amps in line or will I need need a ten amp and a 20 amp? Will there be enough power? Thanks

[@TorqueSteer]

Hi Craig, I elaborated a little bit more on another video I did. If you skip to 3:58, I think it will answer your question kzbin.info/www/bejne/l6TNomtrpZmKatE

[@jamesdong2364]

Exactly what i am trying to figure out

[@thetraindriver01]

Nice

[@TorqueSteer]

+thetraindriver01 thanks for watching :)

[@mdd8564]

Many thanks great tutorial.

[@dave1741]

Im putting in LED strip lights in the toolbox on the back of my ute. This is a great way to get +12v but what about my negative? If I connect the negative coming from the lights to some metal of the chasis will this complete the circuit or am I gonna blow something?

[@NonusGra]

complete

[@hassemsadiq]

Hi awesome vid can you use this method for a dashcam and constint live will it kill the car battery thanks

[@TorqueSteer]

Yeah you can use if for a dash cam with a permanent live. A regular car battery would be able to power a dash cam for weeks without it being recharged.

[@davidshaw577]

What consumer components would you avoid for the IGN live fuse ? or which are most suitable ? thanks

[@daxpresuto3077]

As noted above, the airbag / alarm / sensor circuits are probably wise to avoid.

[@seanwallace1972]

Where can I get a piggy back fuse from as I need to run an ignition live,already know what fuse it is,

[@keithmcc007]

What about making sure that the piggyback fuse holder is inserted the right way round? i.e. AFTER the fuse going to the outlet wire and NOT on the positive end of the fuse?

[@WoodyLambChop]

There's no positive or negative end of a fuse. It's all positive. No wrong way to place it.

[@jayflo588]

Hi , I know it's late . But are you saying that you could test the "live" side by using the device to see if it turns on without any fuses attached instead of using a multimeter?

[@dmac201]

yes you could

[@sanjeevrvs959]

Bhaiya tata tigor petrol engine- car achanak band ho gayi uske baad cluster ki light, ignition light, dashboard light, cabin light, hand break light, parking light, koi bhi power supply cabin ke andar nahi aa raha, engine start bhi nahi ho raha battery full charge hai, dusara battry bhi laga kar dekh liya . car cabin engine cabin dono ka sabhi fuse , sabhi relay multimeter se check kar liya sab sahi hai, problem solve nahi hua. car road par khadi hai corona lockdown me koi machanic nahi mil raha .plz help me

[@MONKFISH000]

Great video. Really clear. Any reason for setting your meter to 200 and not 20 for a 12v system as I have been?

[@Leo-pd8ww]

It doesn't matter in this particular case. Yours probably displays 12.10 V and his 12.1 V.

[@donearl6675]

YES!!!!

[@walterk1221]

The fuse-taps are actually direction dependent.

[@diamondheat9]

^^This. You need to use the voltmeter to determine which fuse slot is the positive and negative side. If you put the tap in backwards it will bypass the fuse and there will be nothing stopping overpowering what you have plugged in.

[@walterk1221]

@@diamondheat9 well, not quite... think about how the "add-a-fuse" is actually configured internally. The circuits will be protected (both) but the original fuse will carry both its design current plus the additional circuit current if the installation is backwards.

[@shamrock6644]

Btw my doorhinge didn't work as earth despite looking bare metal. Hoop that the doorlatch closes onto worked tho and was convenient

[@ChumyMototo]

Great video dude, I want also to know how to find the "Ignition Start" wire? You see, when I don't have a service manual nor the owners manual since my car is a 2nd Hand Nissan Patrol GU, but I need to connect something to the "Ignition Start" wire is it possible to test it using the same way as you did?

[@TorqueSteer]

Sorry if this sounds like a dumb reply. Is there any particular reason that you need to connect to an ignition wire instead of an ignition live from the fuse box ?

[@ChumyMototo]

Actually, I'm not replying, I'M ASKING... THAT'S A BIG DIFFERENCE. You see, I need the "Start or Cranking wire" which is the switch pass the ACC? these are the sequences on the car keys right (OFF-->ACC-->ON-->START or CRANKING) I need the cranking power instead of the ACC. In the cranking mode, it's only supplied when the key is on START position, after you release it, it will turn off. That's what I need.

[@ChumyMototo]

The reason why I need the "Cranking 12V Power" instead of the 12V constant as in the ACC is because I need it to turn on a RELAY, which will turn -On the "Transponder Chip Module" that I created so that the transponder module will have only power when I crank the car, and turns off automatically when I released the key or when the car has started already. In short, I'm making a Transponder Bypass, and I need the cranking power to power it instead of the ACC power which is constantly ON.

[@TorqueSteer]

Yes I was replying to what you was asking. Hence my “sorry if this sounds like a dumb reply”. I was talking about me, not you. I never said you was replying. On to your question. I’m not an electronics expert but I would imagine it would work a little bit like this. The ignition barrel is essentially a switch. So the ACC position would be like a toggle switch (on/off) and the cranking position would be like a push switch (it’s only on as long as you’re pushing the button down. ). I imagine you would be able to splice into the wire coming from the back of the ignition barrel and run an in-line fuse from it. If you wanted to trace where the wire ran so you could tap into it in a more appropriate location, you could use the continuity feature on a multimeter. How much amps does this transponder need ?

[@ChumyMototo]

It's OK buddy, I already found a Service Manual for my car, and I think it's a Yellow/Black on a Nissan. By the way, I applied your tuts-video on my Front Camera monitor since they needed a constant 12 volt power, great thanks for the vids.

[@temelreis9303]

hi i have mercedes 2015 gle there is pasenger side fuse box but all seems constant ? i headr there is witched fuse delay system as well ? is it true? thank you

[@chompchompnomnom4256]

Some fuses seem to cut power 10 minutes after you lock the car up

[@andrewwright.]

still helping bro 😉

[@drebo1productions]

Im adding fog lights to my truck using the existing wiring harnesses. Can't I just tap into the lights port on the fuse box to add the toggle switch to turn them on and off?

[@seanwallace1972]

Good video but you took 1 fuse out of fuse box,and fitted piggy back with 2 fuses can I ask why

[@icecube2T8]

You didn’t point out that some lives can stay live for x amount of time after ignition off, then go to sleep after a while) (switch off)

[@MahbubAhsan]

No power to ignition, fusses are ok on battery and in engine and fascia boxes, earth volt drops good, found no power to ignition switch, drives perfect by temporary live from fuse box... please advice what is the issue here and what could be the solution ?

[@craigmurray3084]

Aren’t you supposed to check which side of the fuse has the power coming in to it for the piggy back adapter ?

[@alpachino468]

Does it matter which way you put the piggy back back into the fusebox?

[@TorqueSteer]

Nope. Whatever was fits best for you.

[@mafosa8519]

Yes it does!! One way it bypasses all the fuses. And the other way power passes through both the fuses. Also. If you have empty slots like I see in this video. I would check those first and use them over “piggybacking “ Just sayin.. Larry

[@Jack-gu7rr]

@@mafosa8519 you're right! Make sure the piggyback is placed in the right direction {on the HOT side of fuse) to allow current to flow through the fuse and not straight through. Very important!

[@winningside1]

👍

[@saby8765]

Squiggly line - > Sine curve...for geek!

[@andufuse640]

we make fuse and fuseholder and wire harness for car

[@petetherealrelentless6542]

I hope you’ve got the fuse tap around the right way.. otherwise the power is now running straight to the wire and not across the fuse.

[@1512dep]

does it matter which way the fuse goes in?

[@p00595p]

Yes it does. The fuse-taps are direction dependent.

[@richardanderson4796]

Every fuse has a number on it representing the capacity of the fuse in amps. If this number is upside down, the electricity can get confused and flow the wrong way. Make sure all the numbers on all the fuses are facing in the proper direction.

[@jangounchained5279]

3:20 COPS ARE ON YOU !! RUUUUUUUN !!!! 😁

[@Wickedthtz]

He found the ignition on fuse. But pulled another one? Am I missing something?

[@dave1741]

Maybe he was after a permanent power fuse

[@cmlegend88]

Why not use an empty slot?

[@mridware9694]

Is this British acsent ??

[@oldgreggscreamybaileys6618]

One of many

[@officialWWM]

This video needs subtitles!

[@dodsmechanical]

Title should be.. how to burn out your car...check where is the Supply and Load... If you place incorrectly and when a fuse blown out it will start a fire

[@ROFLance]

2:19 "this is going to have to be somewhere bare metal" *Sticks it onto a painted door hinge*

[@starbarrothschild788]

If you are struggling to plug both your multimeter leads into the correct socket on your new tester here is a tip - you can " bed-in " your tester by selecting a current range on the rotary switch and putting one lead on each of your cars battery terminals. The meter will make a light "pop" to confirm all is well .

[@SD_48]

Reading the title and already an orthographic error...

[@egorkin1982]

2:16 This is NOT even a hinge 🤪 (called: "door check strap",which is not grounded AT ALL)🤦‍♂️

[@sonicstep]

No part is grounded. It is actually the -ve terminal of the battery that is being connected to when you connect to the chassis.

[@dapv144]

Lol......crocodile clips..

[@61Benster]

He doesn't discuss which way the current flows through the fuse. Get it backward and you could be screwed.

[@StefanosKoutelis]

because it doesn't matter and you won't be screwed

[@61Benster]

Watch this one and tell me it doesn't matter kzbin.info/www/bejne/bpOcdKmLgsiBh9E

[@Jack-gu7rr]

@@61Benster It matters..

[@dudealex3657]

you are a little wrong.you have to find the in and out terminal of the fuse box, so you know witch way to insert your piggyback fuse tap. if you insert it the wrong way, the fuse will not blow, and could fry something.

[@raymcgough6014]

WHICH WAY SHOULD IT BE, IN OR OUT?

[@westieBrucedavidson]

Ive never seen wiring done like before. Think I would rather splice into the wire that runs to the fuse from behind 2 screws and the fuse box can be lowered for acess Sorry your way is the easiest but not the prettiest girl at the party

[@spy8464BB]

R R R R R R R It's Rat not wat, it's car not ca. It's Right not white, RRRRRRRRRR what have the British done to the English language. Honestly it sounds like baby talk.