EASY FIX - OBD II data port has no power

[@mediamarkz]

You just saved me so much money. Dealership was going to charge 250 for diagnostics and 2700 for repair. Thank you a million times

[@DEInTheGarage]

So glad to hear it!!

[@stephenwarrener]

Thank you! Local Mineke charged me $200 and couldn't diagnose the problem and then they wanted $950 for further diagnostics! I resolved the issue in 10 minutes after watching your video.

[@JW-hl7vz]

Good info. One thing to add. If there is no voltage reading, you may be able to isolate the issue further. You could put the voltmeter negative lead on the battery negative or chassis ground somewhere to see if there is voltage when the voltmeter positive lead is on pin 16. If there is, you would know that the issue would be the ground wire in the connector on pin 4. and not a fuse issue. Likewise, you could put the voltmeter positive lead on the battery positive and measure with the negative lead to pin 4, which would indicate the issue would be the wire in the connector pin 16, or the supplying fuse. Of course, there is a chance that both wires are bad!!

[@tonystanton9223]

Had no power to the port and was pulling my hair out looking to find out why, saw this video, may share a fuse with other acc you say, like the cigar lighter you say, my cigar lighter doesnt work, checked the fuse and replaced the blown one, i now have power at the port to do my scan, 10/10 for this video man, thanks heaps 👍😎

[@MrDemondjohnson]

Thanks for Video. I was able to pass my failed emissions test do to "no power" to the OBD connector. I also avoided having to pay 167 dollars for a diagnostic fee at the local shop. The problem was a blown 10a fuse in the "Room LP" slot. I never would have found it without your video.

[@brianbrown600]

So glad I found this video before I went under the dash searching for a loose connection or broken wire! I just bought a $40 OBDII scan tool and the vehicle I needed it for showed NOTHING when I plugged in the brand new scanner. I verified the tools function on another car and it worked perfectly so I knew someone out there had the scoop on this likely common headscratcher. Thanks for saving my back and my time. It was the Cigar fuse under the hood that when replaced, energized the OBDII port and a simple fix!

[@marcianoperez6640]

Do you have extra obd fuse in your car Mine i just replace tire sensor in amerikas tire shop But when they are going to program in The obd reader in my car the port is not working

[@jhamessamuel8313]

What is the name of the software you use?

[@brianbrown600]

@@jhamessamuel8313 No software. Just a plug in OBDII scan tool by Ancel.

[@matthewholm630]

Yup, lighter fuse on my 2005 gmc was blown. Scanner now works again!!! Thanks for putting this video out.

[@ednamiller11]

Thanks so much - my 88 year old husband (who is by no means mechanically adept) just got the "answer" he was looking for from you while trying to repair our 2003 Saturn.

[@iamketoman2270]

2003 MDX - VSA reset the iterwebs tells you to jump pin 4 and 9, I did that and the jumper cable turned glowing red hot. I pulled it part, and after that the car wouldn't start and the OBDII code reader was dead too. I found your video, found the fuse that I just blew and fixed it up thanks to you. Any idea why my fuse blew, the other video has 100's of people commenting that procedure worked for them. Me, not so much. Thanks man, you're a lifesaver!

[@jeremyf3798]

Thanks for the tip! 2005 GMC Van - 15 amp lighter fuse

[@lincolnblack1406]

You made my day buddy, just splurged on my first obd2 reader and was about to give up. checked the fuses and sure enough my “cigar lighter fuse” burnt out, threw on a jumper wire and boom fixed

[@DEInTheGarage]

Gotta love an easy fix, right??

[@hj7993]

Thanks a lot man. Through your video, I discovered the problem with my OBD2 Port.

[@Martinuzm4]

Is that Jeep xj?

[@JerryPrado]

I would jumper 12v to the + pin and check to see if the rest of the port is Ok before I start pulling wires. The odb port is part of the ecu so if it won't talk once your scan tool is powered up, you have bigger problems than " no power" . I've never seen a truly dead odb port, always connections...we have a saying in consumer electronics: "silicon doesn't fail, connectors and capacitors fail"

[@jemelmonger]

So can I straight wire that 12v from the battery and get power to the Ob2 , will it read then?

[@JerryPrado]

@@jemelmonger if you have 12v I side the ECU and no 5v, you must fix that problem first. Please post your voltage readings at your odb port.

[@jemelmonger]

@@JerryPrado i have a 04 Chevy Tahoe. I think that wire is 12v and orange. Can. U confirm?

[@arthurpapazian6003]

​@@jemelmongerI did that on my 96 dodge caravan, years ago. It worked, but I cut the wire feeding the port in case the feed was coming from the ECU, did not want to back feed the ECU. Just be sure you definitely know which terminal is the feed on your specific vehicle. I'm about to do it again on my 95 ranger, hence the reason why I'm on this thread. Good luck!

[@jemelmonger]

@@arthurpapazian6003 thank you! It says 16 pin is the power. I’m going to triple check before I snip the wires. Thanks for chiming in ! I knew I wasn’t the only person in the words that had this issue 😂

[@kennedybrummerstedt3698]

Hello! I've got a 1996 Honda Civic EX. I can't figure out what fuse goes to the OBD2 port?!? Can anyone please shoot me in the right direction? TIA!

[@ladymarissa1613]

I have a 2000 ford explorer XLT and my OBT port is dead. I check for power and it has power coming in all fuses are replaced but not getting anything lines dont seem mess with either

[@DEInTheGarage]

I would check for corrosion or something loose if you have confirmed power is being sent properly. Good luck!

[@dapper_gent]

Thanks Boss! I had this problem with my Kenworth Semi a couple of times and I get charged $140 per hour for someone to look at it. It was the fuse. The mechanics will say they swapped out the electrical, and just swap the fuse. 9 times out of 10. That's expensive!!

[@nolannyr10]

Dude you are the man. Thanks! the car in my warehouse had this exact issue, the fuse ended up being on the engine bay panel but it was def there and had popped. easy replacement and saved me money from getting ripped off at the mechanic/dealership.

[@grima411]

I drive a dodge 1999 it will read for a little bit then the dash will say no bus then my scanner tool will only turn on when my key is off not turned on. What could this be?

[@gb7886]

His buddy got the Exploder from the stealership... Luv it...! Found On Road Dead

[@solskivenrt7516]

On my Mazda 5 2010 the obd2 get No contact with the car, and bluetooth/wifi is gone also : when i click on the 'phone-button' on my steri gwheel 'mute' appeares on the screen and No voice from the phone system....?.?

[@melvincoleman8008]

Yeb! That fix the problem. On a 2007 Ford Expedition, it shares a fuse with the Adjustable Pedals/Datalink. (Fuse #20) Thanks !!!!!!

[@sarubinca]

Very informative video. As suggested in this tutorial, my make/model did NOT indicate either in the manual or thumbing through many websites which specific fuse powered the OBD. I then turned to A.I. (open AI) and asked it to find the information specifically for my make/model. It provided an informative answer. So, if all else fails, you may try that method to identify the blown fuse.

[@Rexwam]

What did you ask ai?

[@kclark9236]

Question: my port works, but only if it is push down when plugged in. I can plug in, nothing will happen, I apply a small pressure downwards, it works. Fuse is fine. Any ideas?

[@bowtiethirteentwenty8627]

Helpful video. Still haven't figured out why a new internal fuel pump wont run. BUT, this maybe related. I do have a dead OBDII port. 1996 C1500 Thanks! I think you should keep making videos.

[@toxictube392n7]

I have a 2003 Hummer H2. I am getting “Unknown driver “ message on the screen, where it usually says driver, one or driver 2 Half the electrical, such as radio, windows, gauges stopped working. I hooked my scan tool up as you are talking about, it has power, but it says no communication. Just asking because I have worked on this myself Probably 100 hours. do you think the problem is combined with the OBD unit which may be causing the unknown driver. Just asking for your opinion please ? I’ve worked on key fobs, changed ECM and BCM but I probably should have started with the OBD port at first. Any comments I would sure appreciate it.thank you !

[@richardwasserman]

Thanks. This gives me a starting point on my project van.

[@sccarguy8242]

Wait a second.... wait just a second... are we going to completely ignore the custom duct tape brake pedal???

[@Pintorismo]

😂

[@ashlibowen7503]

🤣

[@kingtaz191]

You must not know about cars that’s 5 hp

[@vanessahebert5190]

Yes because that's not important

[@grahamshadle5383]

10hp if it's real 3M brand and not Dollar General crap.

[@islandgurl1984]

My cig lite and the odb port doesn't work. Glad I came across this vid. Now I can check that.

[@chriscurley2250]

hi, my obd port isnt bolted in, and is jusr hanging loose. anyway, a wire isnt plugged into the little box , and my ac isnt working. i have a 04 chrysler sebring convertible 2.7 liter. any way i could reconnect it, to get power to my ac?

[@Fer_IVPRESS]

Great video good you showed us multiple fixes without even fixing anything

[@tanyay7464]

Just seeing this video.. I just had my transmission replaced, and a week later, my check engine light came on. I took it to auto zone and had them connect it to the code reader. Unfortunately, they said my car is not reading at all.. It use to read before my transmission was replaced. Haven't checked all fuses yet. But my cigarette litghter workes because my charger is plugged into it for my phone. Need help??

[@Kuhlyedascope69]

yoo my guy!! Cigarette lighter had no fuse threw one in and the computer powered up! subbed you the man!

[@DEInTheGarage]

Glad to hear it! Thanks!

[@user-ff9rx7kq2g]

Looking at it straight up the dress... Outstanding visual picture

[@gamingmasterstudios5896]

I wanted to ask I got a car from the dealer they have a tracker in the car which is fine but it is causing damage to my car computer because it is plugged directly into my OBD port and makes the readers not work. I don't want to disable it I just want to know if I can move it if that is possible

[@deneiceweemes7222]

So my obd wasn't getting power and she died the fuses box it shares it with the cigg,lighter fuse so stuck a tester to the fuse spot and it didn't light up . what do it do next . cause I put a new ignition in and with it this working in cant program the new key

[@jakemason9436]

Don't forget the common issue with aftermarket crap wired in and pulling power etc from the OBD2 port. Look for the wire nuts and tape.

[@aubreecatt2376]

And then what? Found the wire nuts and tape so do I just look for bad wires or unhook stuff? I have an aftermarket radio in my 2003 Tahoe and it's going through an OBD splitter at my OBD port. My truck keeps dying on me while I'm driving and I've already done a couple things already so nearing it down but I need codes and I can't get the OBD reader to connect.

[@brandygutierrez-kf3fv]

i have a 2007 dodge grand caravan my obd port has no power tried several differnt scanners and still nothing???

[@microtechmachineshop]

my car hasn't ran in a month im so over vehicles

[@zoe-ou]

FELT THAT.

[@KariCurry-fy9lq]

I love how through you are so very helpful.thank you

[@BigTireCamaro2000]

I've got 1 now, 2000 chevy camaro, I have checked all you shown, now to divulge into wires up in the dash...HELP

[@brad2548]

Excellent. Thank you sir. I had a broken wire on the back side 👍🤠

[@lialex2517]

hi, D&E, I got a issue of my 2003 Lexus es300 OBD, the obd sacn have power, but no conneting, I check all the pins very good, please reply me if you have an idea, many thanks.

[@Zsozso1234]

Excellent job, thank you! 😊

[@LISAPORZIO]

NONE OF my fuses are blown my car runs fine except the dash gauges all stopped working about 8 months ago then they worked again last month for 30 mins then stopped again. I can get it to pass smog because of No Bus no communication so I can't get my tags on my car I NEED HELP . CAN ANYONE HELP ME. GOD BLESS AND THANK YOU

[@jeffreydowdy3881]

I have a 2011 Silverado 6.0 gas 2500 HD my obd2 port doesn't work and the fuses are all good , so where does this dlc ground at ?

[@joshsegg2814]

Fixed mine with cigar fuse ty sir

[@snower7648]

Hey so I have a 2000 f250 5.4 and mine won’t work and the fuse pops the second I put one in, but I don’t have a draw from the battery at all? Do you know what could cause that?

[@brendananglin250]

Possibly short to ground somewhere.

[@wolverinefan3535]

Found my problem why obd2 scanner no power 09 gmc serria ,duel port cigarette lighter one of the ports blown fuse,thanks for the info I can read scanner now 👍👍👍👍👍👍

[@jemelmonger]

I have to chase down a burn cigarette lighter wire issue. Can I straight wire the constant 12V to the battery to get my power and then will it read ?

[@human1513]

Yes is you add an inline fuse between the battery + and the pin #16. The fuse should be close to the battery.

[@kristenhoumis4745]

The power to my scanner port randomly goes in and out. Any insight?

[@danijelv1147]

Had a car today where it wouldn't start. Went to scan it and found no power to the OBD connecter. Think it might be an ecu issue ?

[@clarencedavis4517]

Thanks. Checked majority fuses, no luck. Pulled obd port no power at 16. Going to play w spaghetti in 95°f Sun. Joy! 2015 MB GLK350 rwd.

[@vgm006]

you make it looks so easy. but it's not. how am i going to see pin16 under my car leg room? i thought it's blown fuse, take out the fuse, it's fine, i even replace it with new fuse, my obdii port still not work

[@Gotham_City_collectibles]

Okay quick question. I have an 04 Honda pilot. Wasn't getting any power to the fuel pump. Went to the main relay only getting ignition power no other power. So I'm trying to figure out if it may be my ECM because I'm also not getting information for my scanner tool. I have power just not getting any Diagnostics or codes or anything when I know there are codes in the ecm. I know it's kind of a weird question in a hard one. But I'm getting kind of lost here. Thanks in advance

[@DanielBrad-ee3es]

ODBII port not powering scanner on 2008 PT Cruiser. Checked fuses and not seeing an issue. Any ideas on another solution, specific fuse to check ?

[@thecapothedon]

Man I been looking for this video!! Thank you!!

[@shutthehelluplol]

"straight up the dress" made me laugh out loud

[@jm_lamp6998]

Thank you you just saved my fedex truck 😊

[@ernestorojas4402]

I’m just getting the dark screen on a 06 Sienna that starter and battery was changed. Now no power windows, seats or radio work aside from no power to port and no blown fuse. No power to fuse it has either….?!?!?

[@jimviktorlangstrom7662]

Thanks man! Very good video and you talk well and properly so even me that live in Sweden understand. 😂 I hate stressy videos with mumble. Yours is not. Keep it up. And thanx again

[@jimviktorlangstrom7662]

You could cut the wire behind the obd2 inlet and make an own fuse if you dont want to rip the car apart if the fuse is ok.

[@konstantin-big]

Hejsan Halsningar fran Konstantin Grekland

[@slick3864]

I've got a 03 Ram 1500 5.9L that has no fuel, no spark and no code reader. ECU is not putting out 5v for the spark and im working through it. Wondering if the crank sensor can cause all this or just a bad ecu?

[@user-wc1rr5uu2y]

Hi from AK just came across your video. Im now subscribed . Great help, appreciate you and along with helping me figure something out you actually made me laugh and I needed that. You are funny. Thank you for that.

[@mistycombs6505]

I've had a sudden crank no start situation w with codes leading to the purge valve and evap. I tested all that still nothing I went to test my fuses I had a blown ignition coil fuse replaced it it did seem like it wanted to turn over spray starter fluid still nothing so I noticed that my OBD2 Bluetooth adapter wasn't holding a connection it would connect but then it would disconnect so I took my Dash plastic off and it seems that the OBD2 port is very loose and I have to hold it in a certain position to get it to keep a connection any thoughts?

[@AutoRevLife]

Something I'm trying to figure out. I want to build a custom digital gauge cluster for my car. I didn't need it to power on with the OBD2 port. Just a standard power port on the car is good. If i didn't connect to the power pin on the OBD2, will i still be able to get the data? My device will be powered from somewhere else in the car

[@kzr011]

Thank you! This helped immensely!

[@arriagada1957]

Hi there I have a 2007 Chevy Express 3500 the pin #16 sometimes doesn't have power like in and out problem...but now it doesn't have power anymore..all fuses are good...broken wire maybe....

[@tiffanypowell8574]

So what about an obd2 port that has 12 volts of power but as soon as a reader is hooked to it it drops to 2 volts and won't even turn a reader on?

[@LuiTheYoda]

My 2017 Honda civics OBD2 port isn’t receiving power. I checked the fuse box under the passenger side. They said it was fuse 7, but it wasn’t blown and the OBD2 port has no power. Any tips?

[@markstrommen1831]

I thought I may have seen a yeti or least something furry in the window. I thought it was just a tree 🌲limb at first but it wasn’t:( at about two minutes and 45 seconds great videos just the same cause I have no power on pin 16 good refresher course for me I’m on it👍Thank you.

[@stevewheatley243]

My scanner lights up but I get"link error." Keys on. What ya think?

[@HuskerRed11]

Did find out what it was?

[@deanlongmire6166]

I was trying to hook something up for a school project on my 2014 Dodge Durango, long story short the 12v and ground wires touched and there were some sparks, after that I couldn’t get a 12v reading and found that the cigarette lighter fuse was blown. I replaced it with another one that was for the horn just temporarily to see if that was really the issue but that didn’t seem to fix it, they were both yellow with the number 20 on them so I’m fairly confident they were the same type of fuse. Is it possible I did damage to something else like the wires when I short circuited or am I just not checking the correct fuses do you think? Any thoughts are appreciated we’ve got to get this project done in a couple weeks and would like to know if I can fix this or should just try someone else’s car until I get my obd port replaced, thanks!

[@deanlongmire6166]

Turns out it was actually just a different fuse, I started checking all of them , wonder how long my cigarette lighter had been blown 😆

[@samanthaponsock6585]

Hello.. I came back from California and had to put chains on 2008 Honda Civic for about 10 min. Well right before I took them off the speedometer stopped working and the check engine light, TPS light, abs light came on. The car runs fine with no issues but the It will not communicate with the obd plug in either.. can you tell me maybe what to do to get all these light off my dash and my speedometer to work again.. ty

[@royaleboy2614]

If the obd port is good and fuses are good and wires are good could it be the ecu?!

[@xxtdawgxx9586]

I have a 2016 jeep renegade latitude 4x4 and i have no power going to half of the bcm and the only thing that's working is my radio and interior lights i changed the ecu and bcm and still have the problem cant get it out of park to move it. I need help i don't want to sell it and i dont have the money to take it to the Dealer. I had the recall done to it and they left the ground wire from the top ecu hook up and i dont know where that goes.

[@cassandrabuck6793]

I have a 2000 Nissan Altima the data link connector only has power in pin 8 + 13 why

[@ejaljuwani4916]

hello I have a 2004 ford ranger fx4 4.0 L v6 truck and my odb reader isnt working. would you help me find fuse it is to replace? the manual doesn't say thank you

[@jenseng388]

did you ever find the issue?

[@ciarakilgore1352]

My obd has no power, I have three red #10 fuses that are not working (not blown) I can't figure out why those three only don't have power

[@JohnDoe-wv5hv]

"Now you have to play South Maine Auto" LOL! Love it! ;) Great content and advice! Thank you!

[@ronnieeacret4689]

I have a 2015 lancer gt 2.4 the obd2 port is not getting power and my car says overheading but has not got hot and hasn’t started in 1 1/2 months still says overheading won’t start at all I can’t figure it out looking for help if anyone know about this problem

[@ClashRebel]

2003 Silverado 1500 5.3, fuse is good (replaced it anyways) checked pins and they are putting out ground and power. If a scanner is hooked up to it the scanner will turn on, but not connect to it and it won’t pull any information off of the vehicle (tried 3 different scanners just to make sure mine wasn’t defective.) Only ideas I have left is there’s some sort of communication issue but without being able to establish connection to retrieve any codes I am at a loss. Truck got a reduced engine power message and CEL came on and unable to see what the code is in order to try figuring out what’s causing the reduced power. Any input would be appreciated.

[@truckmayor6790]

I’ve got a 04 grand Cherokee no obd power and no cluster mileage and no cluster illumination got any idea ? No blown fuses

[@lirimh7006]

I have the same issue, Did you ever end up fixing this? If so, what was the cause?

[@rushblakely7394]

I’m in same boat. All fuses check out. And I mean all of them (my diagram of course doesn’t call it out). No obvi corrosion. This is on 06 Chevy Express 3500 front end of motorhome - cutaway chassis.

[@michaelmartinez9602]

You getting power to the obd

[@distortion_tech_lab]

Thanks! Turns out this 2012 Nissan Juke got put back into 'storage mode' somehow with a factory switchable fuse being unlocked.

[@INTERNA9]

Thank You

[@BeADad2447]

And bilingual! Awesome video bro!

[@rynolda]

Damn my cigarette lighter is out... And my odb2. Once you said that it clicked to me.

[@christineleary1688]

H! My reader is not connecting with the app but the blue light comes on when I plug it in so I'm assuming the Old port is getting power. Any idea what else it could be that would cause this? Check engine light on in my 2004 Jeep Wrangler. Thanks!

[@HuskerRed11]

Did you get it figured out?

[@christineleary1688]

@@HuskerRed11 I did, thanks! I think I screwed something up when I wired up a back up camera summer before last because my battery keeps draining and my back up lights don’t work and it failed inspection so I’m waiting for the opportunity to take the damn thing apart. Go through it all have been able to drive it in months.

[@HuskerRed11]

@Christine Leary Ok cool. Thanks for replying Christine.

[@user-en4ic7vs8]

Good info,,, Definitely applies to Chrysler 300 2012’

[@EllisCharleston]

I have a dodge charger 2021 so happened to know if the testing fuse is the same ?

[@jimthegratehd9531]

I had this problem in my 2001 ford windstar it was just a fuse same with the cigarette lighter

[@coeniejvr]

i got a gwm steed 2011 model, my problem i got is the car starts perfect when cold. obd port is working. But when car get hot it shuts down then i also notice the reading on the dash board for millage does not come on but some lights on the dash work, not all the lights then when that happens we got no power at the obd port. Did you experience anything like that?

[@raygothis]

Thanks my brother.., 08 corvette liter fuse caused my odb2 port not to communicate

[@JacobBain686]

I have a question? I have a similar issue, only I can't connect with my PCM just my TCM, skim module light is on and I have power and ground and with 5 volt reference. I'm guessing the PCM has failed? It's a 1999 jeep grand Cherokee wj 4.7

[@kennethwoodward4669]

My ex played with an air compressor to cig lighter and burned the wiring forcing me to pull that fuse now my obd2 doesn’t work wondering should I run another wire with inline fuse to the number 16 pin ?

[@kennethwoodward4669]

Update : I cut number 16 and connected it on a 12v and my obd2 showing number four cylinder misfire looks like coil time

[@chadtennant671]

I have a 2008 Grand Cherokee Laredo and someone tried to bridge a pin in the obd plug and it arced and now I have no power to it I checked all the fuses and they are all good and I checked the wired and still no power to it

[@RegGorman-f4m]

My obd11 has power but fails to connect to the cars computer no matter whhat scan tool i use, some times it will connect for a short time and the drop fault says failed to connect plesese turn on key, this happens the same time my instrument cluster goes in to full fault, ever light speedo every thing except the fuel guage

[@indyguy3400]

Wouldn't an open circuit on 4 and 5 cause it not to work since the grounds could be open.....just going to a chassis ground and not pin 4 and 5 doesn't check the ground side of ALDL, a loss of power or ground is still an open

[@carloslawrence2847]

Fixing a 2007 rav4 2.4 new battery and alternator the starter isn’t brand new but works so the car does nothing unless I put the diagnostic scanner in the OBDll and then the car cuts on but only if it’s in and runs rough but gives no code? Can you help me if you know

[@tannerdees9724]

Having the same problem. Fuse keeps blowing when I swap it out but sometimes it’s immediate and others I can drive around a little. The cigar port is fine because I can charge my phone. Nothing looks corroded. Pulled out my radio to see if anything looked fishy or fuse keeps blowin and it didn’t make a difference . Any other thoughts ?

[@thembelssengwayo6896]

There is a short to ground, when ever, you press something e.g use horn or wiper for an example

[@elijahspates7210]

I have an 04 g35, don’t have a multimeter but the obd2 port pins seem to be in good shape and I can’t find info on a fuse it would be linked to

[@lh98]

No update on your friends obd not having power? Curious if it was just a fuse or what you ended up finding out