Disconnecting High Voltage in Electric/Hybrid Vehicles

[@jameswiggle]

i am probably never going to do this but i still like watching

[@NKSLNGRdotCOM]

Thanks for the video that gets straight to the point with no time wasted.

[@williammcleod7585]

Thanks for this. I’ve been around combustion engines my whole life, but more and more of my friends are getting hybrids. It’s only a matter of time before they ask me questions or need me to work on their cars-I figure I’ll go ahead and start studying now so I’m not totally caught off guard.

[@rusty911s2]

Excellent: especially the multi-meter check before and after, hadn't thought of that. Thank you.

[@MikeM-tt5fl]

Great and very proffesional explanation of the procedure. Thank You.

[@steveblauvelt6312]

As a tow truck operator I wish the NTHSA would require an emergency disconnect like the engine kill on race cars. At accident scenes it is a lot of work to get to all the stuff you had to do for just a repair. Much less worrying that the car body may be energized due to a pinched cable. Great video though, thanx for the info.

[@djsuava9398]

Thanks man for the nice video legend

[@zxLoneWolf]

Maybe I missed something. What is the S.I.R. acronym? Thanks for the video by the way, very informative!

[@6Void9]

Thank you for the through walk through 🙏🏻

[@saeedkhan2949]

Thank u sar Veri good advice this is so good video thank u Veri Mach

[@louisosei190]

Thanks so much for this informative video and please keep it up

[@SRGLIST]

Thanks so much. I have a project do next week on a Hyundai. I need to replace rear body panel and extension floor which includes welding. I’m assuming is the same Procedure.

[@vincecfm3240]

Im just about to weld my exhaust on my Hybrid Lexus. How did your job turn out? Did this tutorial help you out? Id appreciate your help 👍

[@SRGLIST]

@@vincecfm3240 very good not a problem 👍🏼

[@vincecfm3240]

@@SRGLIST Awesome 👌 Did you use voltage safe gloves?

[@SRGLIST]

@@vincecfm3240 yes.

[@owendyer7729]

Thank you for teaching 👍👍

[@arielcruz5656]

Thanks for keep it safe man

[@automotivel3501]

Great video, Can I use this to show my students at college

[@boost351]

Always do a visual check on gloves and leak test. And one hand rule when removing service grip plug

[@h-townautomotivetraining8219]

Great video

[@luigipiano-s5m]

Thanks a lot; very clear.

[@jesuscastaneda244]

Thank you!!!!

[@nicholasosorio6579]

To verify that your voltmeter works, you should set it to read Ohms and touch the leads together, if it reads zero ohms or very close to zero then that means that the leads are both working and able to give you accurate readings

[@modallas8034]

Thanks, Mark! You may have saved me from electric shock.

[@TOYOTA-M-Z]

Hello, can you please guide me, how should I change the battery of the Nissan E-Power Sylphy hybrid? I am a master Toyota technician.

[@west_park7993]

excellent. however, how do you disconnect the damn cables from the power inverter???

[@nicholasosorio6579]

Looked like it was just two bolts, I could be wrong

[@kennethmartin7838]

Thanks very much.

[@JESUSD6765]

Great video Thanks 👍

[@DJRAM-bx7qn]

Nice work , Bro i have some question regarding Hybrid ECU , tech. change new HYbrid ECU and after that the vehicle not working/start. There is a code : P0A0A92 ,. What the posible cause ?

[@pauloconnell6550]

The service disconnect actually breaks (creates an open) the battery pack somewhere in the middle so that you have two smaller (Lower voltage) batteries.

[@emiliosanchez4599]

hello, thanks for the video, i have a question, after doing this can you weld some part in the chassis that broke in an impact? thanks again

[@charlesbrockmyer2673]

That is what I'm looking for to

[@gop4usa12]

Is that something that should be done when parking a hybrid vehicle long term?

[@임지혁-s6q]

Hi, I have question for checking the high voltage, when you connect the lead, where we have to connect the lead for ground ?

[@Shmucko21]

I have a couple questions (Have my Red Seal Exam coming up) When reconnecting the battery is it just the reverse process? high voltage battery first --> Safety switch --> 12v battery? Also the minimum required rating for the gloves is 1000V?

[@boost351]

Class 0 For gloves (1000V) and CAT 3 Multimeter 1000v

[@Okellodave]

Let me ask. If you want to use your hybrid car without the function of Hybrid bettery. What are you supposed to do?

[@nicholasosorio6579]

Pretty sure you are able to control that with your car, by either using the specified buttons in your center console or on the radio interface

[@raulvazquez2611]

Do you know how to disconect de high voltage in a Jetta hybrid? I need to change 12 v battery

[@mechaley84]

Can I flat tow my prius if I disable the hv system?

[@guyshawvocalist]

the service plug on this Prius actually splits the cell modules inside, not the full battery as illustrated

[@pk6336158]

splitting one cell will deactivate the whole system because there isn`t a part for current to flow anymore

[@gavincooper4365]

Yes but you still have seperate live circuits inside unless you disconnect all bus bars. All you have done is break current flow of the overall circuit in series

[@andrewc4790]

What do I need to do before replacing the hybrid battery? Is it safe to work on it after unplugged the orange safety plug?

[@Sergio8191994]

Hybrid batteries should only be replaced by professional/certified technicians due to the safety equipment and training required. The courses and qualifications for a L3 ASE Technician in the US to safely work on Hybrids is around 12-36hours of safety and practical training as well as purchasing specialized High Voltage tools and Personal protective equipment. By all technical standards replacing the battery is not difficult but the risk of Electrocution is substantial and is not a job that should be handled unless you are absolutely certain you know what you are doing and have measures to protect yourself in the event of an accident. It would be the equivalent of asking if fixing the power line to your house is something you can do yourself. It's 250-800 volts, it is not something you should take lightly.

[@edwardstowe5726]

what if aint got no electric gloves?

[@lloydchapatali5979]

Hie Team Can we disable hybrid function in Toyota Aqua May Hybrid vehicles are misbehaving and I would like to disable the hybrid function since replacing battery pack is very expensive

[@paulhyski5994]

I have Prius 3rd gen with 250k miles but recently my hybrid battery is charging more frequently up 100% instead of 85. Is it something to worry about?

[@richardhumphrys7907]

Great video. 2 seconds of contact at the lowest level of voltage ~ 50 ma, will kill a mechanic. Always wear insulation gloves and use Insulated tools to prevent short circuits whilst working on high voltage systems. Rubber insoles can be helpful in preventing shocks.

[@josepeixoto3384]

YOU SURE? RUBBER INSOLES? why, the damn thing is connected to Ground, thru a metal stake somewhere? my solar inverter is not...

[@B04Leverkusen78]

Hi there. I will make some replacement on the inverter 2013 prius. I have some question with the parts number. It look like there are two lines of numbers written on the part’s sticker. Do i need to get them right, or just the first line (mine is G9200-47210)

[@alexdb03]

super!

[@_GummyBear_]

Hi i need to weld something on a corolla 2019 hybrid. Its the same procedure?? Thanks

[@Sergio8191994]

Lol, I hope you're joking 😂. If you are doing welding on a hybrid chassis it is best to remove the hybrid battery before any prior work and ensure there is no residual voltage in the system. Make sure you have a clean, well connected, ground and welding can be done. I should note that modern vehicle computers such as blind spot monitors and ABS control can be damaged if excessive current from a weld is too close. Welding near or on a hybrid system is okay but precautions for each vehicle varies on each manufacturer. Even non-Hybrid BMW or Ford modules can be damaged if the frame is welded before disconnecting the connectors.

[@_GummyBear_]

@@Sergio8191994 thanks for ur reply. I did the safest way. Used the old style bolts and nuts 😁

[@rutiliotorres9228]

Do I need to disconnect the hybrid battery if I need to replace the starter?

[@Sergio8191994]

Hybrid vehicles usually do not use a starter motor to start the vehicle. They use the electric motor that powers the wheels to also start the vehicle and is powered by the High Voltage battery and no current Hybrid vehicles above 250V use a standard starter motor to start the engine. Vehicles that use a starter with a Start/Stop function (that turns the engine off/on in stop/go traffic) can be replaced safely by disconnecting the 12V battery but must be replaced with starters that can handle being turned on/off 30-40 times per day (which are very expensive)

[@shifty2755]

It uses a motor to turn the belt. It usually has the alternator built into it.

[@ronaldaerongonzales3561]

Thanks

[@bunnygamer1313]

My biuck lacrosse 2012 has an electrical failure, quickly discharge the battery and it does not advance, which could be

[@joleneshipp3946]

Are you able to use a hybrid only on gas?

[@TehNouk]

No. it works with diesel as well. I own a Volvo v60 2.4 diesel hybrid.

[@sjd73ss]

Yes

[@UddikaRathnayake]

Hello Mr. I am Uddika Rathnayaka from Sri Lanka I have Toyota Prius ZW30 2011. In my vehicle there is a error code coming P3004. In my vehicle there is no corrosion in battery wires, battery voltage ok, From HV battery to inverter main power cable has no shortage Vehicle not ready Scanned several times every time same error code appeared Please help me to solve this problem Thank you

[@nonenone4078]

Which repairs are required to disconnect the hybrid battery

[@zacharyarthur144]

High Voltage A/C System, High Voltage Powersteering system, High Voltage Battery, High Voltage Inverter or Electronics, and any of the High Voltage wiring.

[@majidyas6664]

❤

[@legaldesign]

This video is mostly wonderful, except how did you gain access to an UNCOVERED power invert? In my 2005 rPrius removing THAT cover requires many additional hours of labor. Removal of the windshield washer assembly, above the back or the inverter cover, is required to access the last few cover bolts. So it comes down to how confident can someone who wants to weld on this type of vehicle be that simply removing the orange service plug will be ENOUGH to guarantee they are working on a disconnected High Voltage Battery, without potentially killing the welder and/or the 2005 Prius. Please address allowing access to this important multimeter safety check. The lives of all the well intentioned shade tree mechanics who'd like to SAFELY repair this type of hybrid depend on access to the power inverter terminals shown in your video.

[@pezzoman11]

Do you still need the gloves to work on the car after discharge?

[@zacharyarthur144]

It depends on what part of the high voltage system you are working on.

[@musheer5711]

@@zacharyarthur144 For example if I just want to remove the big battery ??

[@Sergio8191994]

@@musheer5711 Yes, any part of the HV system requires special gloves to work on. Excessive moisture in the air or ground and touching metal in the vehicle could cause electricity to discharge through a person and could cause Electrocution.

[@shifty2755]

@@Sergio8191994 The hybrid battery is not earthed to the vehicle chassis.

[@majidyas6664]

الترجمه خاطئه المقصود عند فصل الفولتيه العاليه هل يجب ارتداء القفازات اي الكفوف

[@P2RGamz]

Get yourself a voltage proving unit and you're good

[@manuelsilva8640]

Your 12V auxiliar battery is seriously discharged showing only 12,2V

[@gauchejim]

its a deep cycle AGM battery, this normal

[@Dead_on_Arrival.]

Damn I hate Hybrid and Electric Vehicles They are so high voltage that it can kill an ordinary mechanic by House voltage shock Id better own a combustion fuel type vehicles

[@musheer5711]

But hybrid and electric cars will save the world from global warming.

[@shifty2755]

@@musheer5711 How? What about the manufacture of them?

[@ronaldnocenti1969]

Do you need a face shield?

[@ra_redesignautomobiles]

Ill end myself on combustion powered cars No electric and hybrid cars for me

[@WilliamVandervleut]

This information is a bit over the top!

[@shifty2755]

It's highly informative is what it is.

[@glitchmaster643]

Just chuck a v8 in it and see how it goes you plebs

[@steveolive9991]

You mean emergency responders have to wait 10 minutes before they can attempt to a person trapped inside the car?