Checking Computer Data Link (OBD-2)
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- Опубликовано: 7 сен 2024
- Checking Data Link 96-Up (OBD-2)for common problems.
Disclaimer:
This video is not meant to be a definitive how to.Always consult a professional repair manual before starting your repair.I am not responsible for any problems that you might incur by watching or following this video.Follow at your own risk.
Could you slow that down a little, it was hard to keep up.
lol
Lmao I was like ...welllllllll
Ed Waggoner Sr. You missed it the one hand was moving really slow and you miss what really happened I was a trick that was in slow motion slow mo I'm a troll
You are funny😂😂😂
😂😂 If he goes any slower he will be going in reverse 😂
great teacher and great explanation
Hello help me
@villedamx Yes your jeep has a obd II connector it is located at the rear of lower left edge of dash.If you were sitting in the drivers seat it would be in front of your left knee.
It looks like the ground and live are sufficient i wounder about the data bus pin but at the moment i am not sure how to test that pin.
Hey Rich, thanks for the info but can you tell us how we can checkt if the data transfer works? I have a predator and on day to another i cant connect to the pcm
Pin 16 should be over 12 volts,how many volts does your battery have.With your multimeter on the highest ohm setting pin 4 should read 0.How do the pins and wires on the back of the connector look.
Well I did not get it do you mean if the wires in different places that's means obd will never work??
Well its light up but never connect with my iPhone 4??
This is the DMV worker from zootopia. Much love very helpful video but this is the internet after all, appreciate your help.
Good job! Your video is clear and you don't wave the camera all over the place so I can't see what you are doing.
Wait - when you attached the lead to the ground, you went too fast, I missed it, lol - kidding thank you. Isn't it fun seeing comments 15 years later! : )
Hello , make sure that your scanner supports the same protocol in your car , they come in many flavors :)
@overshooter12 Specificaly. Measure the no 4 pin with the dvom meter negative connected to battery ground, Measure the no 5 pin against the same battery ground. Pin 7 if active should read 3 to 4 volts measured against [batt grnd] on this line [pin 7]you don't only want connectivity but also a active +3v. If you get zero volts on pin seven disconnect the battery and measure resistance between pin 7 and a good chassis ground. should be 300 - 600 milli ohms resistance.
Well explained friend thanks for the advice .
One question do you know what is pin 13 at the connector.
@@LuisMartinez-fr9gq pin 1 to eight on top row pins eight to sixteen bottom. left to right. I was saying you may have to check with Mitchells or All data to find out if you have can hi and low or some other variation of. I mostly do European cars although I have worked on a lot of Asian models
Do you charge by the hour ?
Great video needed to test the power to the OBD-2 port... the scanner was not powering up found out it was a blown body fuse
I have a 95 dodge stratus es I have power on#16 pin & continuity on#4 & 5 pins but my scanner does not communicate with my computer,what could be wrong?
My light came on saying my psi is not showing how much air is in my tires. Now later on this evening my obi 11 light is on. Is there a way to fix this without putting my car in the shop.
It did show continuity so the ground was good at that pin.
Ok, so I got 12V on 16, but I got 0.5V on 4.
What does that mean?
(In the car I’m testing, I’m suspecting either a problem in either the ECU or immobilizer.)
I have a 94 chev serberben it work at first but now no but lighter socket works what could it be
Ok I checked pin 4 and it reads 0.40 and pin 16 reads 11.77, I also checked back of the connector and looks fine, I checked all fuses and they are good , battery is good as well. Any advices Rich ?
Very good for me thank you
@overshooter12 Part 2. If pin seven has HIGH resistance the K line or diagnostic line is shorted to ground you need to trace the k line from the OBD 2 connector to the Power Control Module looking for a short to ground. consider if you did any work, or made any connections behind the dash recently or added any electrical components to your electrical system. try disconnecting things and check the resistance after each step. when the resistance returns to normal [300 ma] you found your short.
Excuse me how much is consider high resistance???
@@LuisMartinez-fr9gq Resistance measuring normally done between terminal six and fourteen normal resistance is around 60 ohms. Zero ohms [ no resistence ] normally indicate a short in the system. 120 ohms indicate one of the tremnating resistors are not connected. Sorry about the error but every time i do these test i have to review the procedure.
Thank you Tom for replying, i get what you are saying, i do not have pin 6 and 15, which pins should I used to see this test correct
@@LuisMartinez-fr9gq are you an OBD 2 vehicle or pre 1996
I have a 2001 Hyundai Santa Fe GL 2.4 liter, OBD II, i have pins 4, 5, 7, 8 on the top. On the bottom i have 12, 14, and 16, i just do not know what pins to touch to do this test since I do not have the ones he show on the video.
Muy buenos videos ... Gracias, desde Argentina ...
Una pregunta amigo, alguna vez as trabajado en 2001 Hyundai Santa Fe GL 2.4 motor, quiero saber cómo testear los CAN BUS, pero mi connector no viene con el pin no.6.
Excelent video.
Thank you.
Rich, when you put the positive lead to the 4th pin top row from the left, did it NOT show continuity (no continuity) or am I just reading that wrong (not an expert with volt meters).
If it is continuity it will show 0, how it was in the film.
@richpin06a Thnks for the tip, but after looking all arround under the dashboard and after an intensive research on the internet, my car doesn't have a OBDII plug, it seems that my 96 jeep is an early 96 model (same 95 but with some patches) only the late 96 model has OBDII port available... anyway, thanks bro.
MXV obd 1 was like a 3 pin connector. And you used to use an led and it would blink so many times to spell out a code
That was helpful. Thank you.
thank you !! great info
Can you use a power probe to do that
thank you Richpin06
Hi Hector,you battery is probably flat. a 12V battery(nominal voltage),must have a bit more than 12V.About the pin 4,it is shorted some where as the resistance is more than 0.25.follow you wiring from OBD2 plug to your ECU(electronic control Unit or the famous computer) and check all the fuses and everthing is okay,you may need to review all possible modifications done on your car or even contact an Auto electrician.
Hello do you know what wire is in the pin 13 on Toyota Corolla..
Hi I have a Volvo s80 2000 is not starting but the starter is working and the engine lift is off what might be a problem?
my jetta shows on pin 16 below 12 volts like 11. something volts , is that why I am not getting any codes from my car ? the scanner says no connection with computers car , also I checked ground and it showed me some numbers , should I get none ? if you can give an opinion would be helpful ,I just don't want to take it to the shop, they might say it was just a short and pay 400 dls
great job turtle
Ok I have those readings too,so what's next? Y doesn't my scan tool connects with my computer? Thank you.
Thank you sir 🙂
Most welcome
Please I need to know exactly to plug in for the scanner to diagnose my toyota crown 1999, thks.
@villedamx very strange that is a oddball
Hi, I have a Cherokee Sport 96 but can't find the OBD II connector, does that model come with OBD II plug?
hello I have a Mercedes W168 how can I make the diagnosis with autel 509 ms without multiplexer
Thanks bro
Hi is it normal for pin 7 to showe 7 volts and pin 4 on 2k to show 0.02 and pin 5 to show 0.004? What can I do to fix it?
Hi RICH
Can I measure other pin like 6,7,14,15? How many voltage for those respective pins?
Thanks
The data pins are not diagnosable by measuring voltage. It are digital connections. You would need an osciloscope to see whats happening on those connections, and then understand what is actually being send which is not easy (or could call it even complicated, a bit of a study)
My OBD2 connector has power but it does not communicate with my scan tool. I am getting 12+volts to pin 16 but i am getting 1.1ohms at pin 4. I assume i have a bad ground then. Am i correct? Any ideas? Thank you.
R F pin 1 needs to be displaying around same voltage as pin 16 .pin 4 is your ground and pin 5 is your signal ground.
R F and if you got no power at pin 1 check your fuses .look for tarnished fuses they go like a browny dingy colour. If you see this either replace or clean them
@@diesalweasel my friend do you know why the fuses get tarnished?
You don't need to move slowly to stretch the video. You can sing a song. It gets less boring.
Yes that is right. rich
I just wonder if it's normal the volts, 11.77 and the ground 0.40 ,,,,,,,,my cherokee reads over 12 volts
OBDII Connector is available at: www.269motorsports.com/electrical/obdii-obd2-wiring-harness-connector-pigtail-harness-replaces-12110250-gm-aldl/
zafira vauxhall mk 1 is it same pins
Pin 4 is SIGNAL Ground and isnt Pin 5 Signal Power?? could have sworn thats what I read in my book and will get back to this thread at a later date.
Looks like your battery is on the way out. Should be around 12.6 or higher depending on how long ago it was driven.
Those look like data pins.
When you say "it should show some continuity" at the 4th pin, is 0.00 showing continuity?
Yes.
What is the multimeter set too?
For the test of pin 4 he had the multimeter set to Ohms (200K). Then when he was checking Pin 16 (the power pin) for volts he changed the multimeter to (V DC) volts (20).
What to do next if no power to pin 16?
check your fuses particularly aux and cig lighter they usually connected
The real problem is that manufactures put the data pins in all different locations in the obd connection 🤦
So much for ISO 🤬
OK, So now what?! what is the cause of the pin 4 problem?
Bernie Denis ,the cable connected to pin 4 can be shorted some where,it is necessary to follow the wiring until you find where is the problem.
Voltage drop man
Ohm-ing is a bad test
Airman q
Ignition switch on
you didn't checked the link...just the power... :(
Fail. You should never check for resistance before checking for voltage present.
If he slows down any more he won’t never get done omg was he slow
@jrcboy WHY ? FLUKE METERS ARE CHEAP.. BUY 2 SO YA GOT A SPARE., LOL
you made a 30 second video 141 seconds.
Today we're going to check, zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz......
@bustyfrog54321 lmao... you are funny :p
lol
damn dude u dont have to move that slow for effect holy fuck
Wtf dude are you falling asleep
i saw better this vid with 60 frames/sec...lol
YOU MOVE WAY TOO FAST MAN SLOW DOWN, WHATS YER RUSH