How to Fix OBD2 Port not Connecting with Automotive Scanner / Solve Scan Tool Won't Connect

[@DIYAutoworksNG]

Any other causes not on the list? Add it here! Check out my Amazon store for tools I recommend - amzn.to/42LGCL8 #Commissionsearned.

[@osahonomon6539]

Hello @DIYAutoworksNG. Thanks. However my OBD Bluetooth scan tool using TorquePro does not connect to my ECU but with the free version its connects. However, the Scanner when connected to my Neighbor's car with TorquePro connects immediately but does not connect to mine. Please what could be the Issue? P:S I used another scanner on my car and it connected.

[@jamessaville5766]

thank you!!!! beyond words !! i just unplugged the mass air flow sensor (i just changed it )and then connected the battery the scan tool connected immediately i cleared the codes and was able to start the car

[@EZ-D-FIANT]

Obd ports have fuses, of course they do they are powered, grrrr kicking myself for not considering this cheers bro......👍👌👍

[@DIYAutoworksNG]

We all have those moments, lol. All the best!

[@mjaye6042]

Thank you. My issue was a nasty Rat eating wires. Droppings led me to check all affiliated wiring, Cheers!🥂

[@DIYAutoworksNG]

Those pesky rats! Glad you sorted it.

[@billhenry9599]

Very helpful information. I couldn't figure out why my OBD II scan tool was not communicating with the truck's computer. I checked the power at pin 16 and found none, then checked fuses and found that it was blown. Replaced the fuse and it worked like it should and communicated with the computer. No codes came up so I now have to figure out why the engine stumbles at road speed?

[@mikehenry4743]

Coil.

[@billhenry9599]

@mikehenry4743 I'll check that out, thanks!

[@stevenbenavidez2564]

If you haven’t figured it out yet reading fuel trims is where you would definitely benefit the most

[@AzadShadad]

Wats the Adapter called For Sensor Check u used? Not the Red one

[@billhenry9599]

@AzadShadad I have no idea what you are talking about. It's an OBI II scanning port or it's something completely different.

[@FlaxYeti69]

This video saved my skin ❤❤❤

[@DIYAutoworksNG]

Glad to hear! 🤛🏼

[@faroukkhan6777]

Thanks excellent 👍

[@DIYAutoworksNG]

You're welcome 🙏🏼

[@9-11neverforget4]

👍you are the best bro

[@Andino.]

So... I just bought a 2003 350z Track Edition, took it to a mechanic shop yesterday for a full inspection... car won't rear the OBD2 port. Absolutely insane. The mechanic said he an trace down how to fix it but dang man

[@tammywaters7351]

Helpful. Ty

[@DIYAutoworksNG]

You're welcome!

[@SunkanmiMaliege]

You try 🎉

[@DIYAutoworksNG]

Thanks!

[@toxictube392n7]

Question please .. I have a 2003 Hummer H2. On the message screen on the dash where usually says driver 1 or driver 2 I am getting “Unknown driver” ABS light on, battery light on, Windows, gauges, radio stopped working. Motor runs great. i’ve replaced BCM, ECM. I hook my scanner to it and get no communication. The port has five wires going into it and the tips All look good. I have worked on this truck for many hours and no luck. I’m going to check the OBD fuse I have not done that yet. But if blown would that also cause the Unknown driver which is causing all of the electrical problems, any help I sure would appreciate it very very much. Thank you, Richard.

[@DIYAutoworksNG]

All this started after replacing the BCM, or?

[@hombredelfuturo_888]

Hello, the amount and order of the pins are not the same in my vehicle and OBD2! Do you know why?

[@DIYAutoworksNG]

As long as its an OBDII compliant vehicle, it should be the same. What car and year is it?

[@hombredelfuturo_888]

@@DIYAutoworksNG Toyota hilux 2013, I live in Ecuador

[@DIYAutoworksNG]

It might be a market thing. Not sure.

[@BestMotorWerks]

Hello. I have below 12v in the battery ,is this problem for the obd2 scanner to connect? My battery show 11.6 ,11.8 v..

[@DIYAutoworksNG]

It should still connect with 11.8v

[@konstantin-big]

Maybe you need to charge the battery

[@sameemsahibi7761]

Which app are you using??

[@DIYAutoworksNG]

For?

[@sameemsahibi7761]

@@DIYAutoworksNG for obd2.. i used carscanner but not connecting ecu on honda vezel!

[@DIYAutoworksNG]

@sameemsahibi7761 I see. I have quite a number of scanners. Autel, XTOOL, Vdiagtool and Launch. All these work well on Honda

[@JamarD421]

How do I replace when one if it's broken?

[@DIYAutoworksNG]

Haven't dealt with this before but my guess is you'd have to cut and splice the wires leading to the connector using a donor OBDII connector port.

[@JamarD421]

@@DIYAutoworksNG Interesting. I think I can do that with some help but hopefully, it's not that bad. It seems like the port is just loose and won't make a connection. I thought replacement might be cheap or easier/better.

[@prod.bymilo]

My OBD scanner gets power when plugged in, but it fails to get inside the vehicle system… it can’t find the right OBD system and just fails (Mitsubishi Colt 1.6 1999)

[@DIYAutoworksNG]

You mean it's says unable to communicate? Have you tried other cars?

[@brayanovando6925]

@@DIYAutoworksNGI have some how it scans mines half way n stops

[@Mozamel_fayez]

My car has problem the abs light is on and Car steering wheel is getting hard and everything is connected to the diagnostic tool but just engine and abs system didn’t it is Lexus is250 2008

[@DIYAutoworksNG]

Can you clarify the last part of your query? Have you read it with a scanner that has ABS access?

[@ibarratony5203]

Hi. I have xtool d8. And fails to communicate with any car. I have all updates and still not working.

[@DIYAutoworksNG]

Have you contacted XTOOL? Likely a VCI issue. Wired and wireless?

[@anaarreguin6970]

What much is a diagnostic for this … ?

[@DIYAutoworksNG]

I don't understand.

[@BlissinthemiX]

yep great

[@DIYAutoworksNG]

👍🏼

[@SeymourBalz]

Every video on KZbin tells you to check power and ground. Is that all there is to data communication?? Ok...I've got battery voltage to ADL. I've got ground(s) to adl. (Pins clean. Connectors tight) Still no communication. There's got to be a way to test if the ecm is sending a signal to ADL.

[@DIYAutoworksNG]

If the check engine light comes on momentarily when the ignition is turned on, thats a sign the ECM is sending a signal to the port. Have you done the other task of individually isolating sensors? You may have a defective sensor that's messing up things up

[@jeffersoncastro1895]

​@@DIYAutoworksNG why my car not communicating to obd2 and check engine not coming

[@billydenham9313]

My obd2 scan tool will connect to the ecm, shows trouble codes and will let me erase them to, but when i try to motor the live data, it disconnects. I've tried it on my 04 trailblazer and it does fine, but when i hook it to my 2012 Silverado it won't let me view the sensors or monitor the sensors. Any time i try to read the live data it automatically disconnects and closes the program i'm using on my laptop. Oh, It comes up with this ...... Calibration Identification - NA I don't know if that has anything to do with it but I thought i would let you know. Any help would be appreciated!

[@samdiaz547]

Did you figure it out I'm having the same type of problem on my 05 Chevy Tahoe

[@samdiaz547]

Did you figure it out I'm having the same type of problem on my 05 Chevy Tahoe

[@shegunsteven8863]

Mine doesn't work since my ECU replaced

[@DIYAutoworksNG]

Something in the wiring may be amiss.

[@handyman2233]

None of these work. I tried mine on every vehicle....nothing

[@DIYAutoworksNG]

You mean your scanner doesn't work on all the vehicles you've connected it to? It's like the tool has an issue then.

[@raymunro9894]

yeah... if you have thousandz of dollars worth of equipment... pffft... waste of time.

[@DIYAutoworksNG]

Not really true. There are scanners for less than $20. That was where I started, and actually did a lot of diagnosis with those.

[@DemonEmbarasser]

Has nothing to do with the car. It’s something wrong with the scanner. I’ve tried on 5 different cars.

[@DIYAutoworksNG]

It's definitely a scanner issue then. I'd contact customer care.