A lot of good info in such a short video. Wish all videos on UA-cam were like this. Straight and to the point. No time wasted. Thanks for sharing your knowledge.
Wow... I wonder why all the other auto electrical 'gurus' don't show us these tests! You are just so 'on point'... I can't thank you enough for this video, Happy day.
OMG plain simple and right to it, I couldn’t figure out a communication problem after watching this vid and testing exactly how you explained found Tcm was at fault. Thank so so so much it was between a couple hundred dollars and thousands of dollars. 👌🏼👌🏼👌🏼👌🏼
Thank you Sir! I just got a 5.7L Hemi on a run stand and it would start but not run. Your tutorial led me straight to a need for a $0.15 resistor that got the CAN Bus working.
Just wondering all your control modules started communicating after that? Mine has a problem it's reading 120 ohms and can't communicate to my scanner. Bought a ecm and it still does the same thing.
KNOWLEDGEABLE HANDS ON AUTO TRAINING Outstanding tutorial 👌 👏 👍 Thank you very much helpful information video start to finish loved it From Nick Ayivor from London England UK 🇬🇧
when you reading 2.5 volts, in ether side, (usually in both sides) means that you have a short on your network and you resistance test (with the key off o battery disconnected) will gives you a value of 0.1 or 0.2 ohms. In that particular test you did... reads 60.9 ohms which is alright and the volts on your low side is 2.3 +- 0.1 average and your high side is usually 2.7 +- 0.1 for the total of 5 volts that is why you read 2.639 and 2.343 = 4.943 + lead resistance usually 0.1= 5 volts +- something. i did one today and literally read on 14 - 1.98 and 6 - 3.01
@@BrianMann216 what if I have reading of 30.1 ohms ? . I used to have more then 250.0 ohms on my toyota 4runner and I found out that my angel sensor causes the problem but after I fix it I have reading of 30.0 or less and sometimes 60.0 ohms .
I remember working on a 81 caprice that had the same connector. Had to jump the wire for a blinking check engine light. Thats how we got the codes. And before that we had no stinking codes. I love em both. Like a big greasey puzzle. 35 yrs as a hobby.. lots of fun cars.
this is one of the best i've found for my no start problem. found out why no start but does with the obd cable connected .... pin 4 ground is not grounded.
Excellent! It's crazy how hard it is to find basic troubleshooting info like this. ... now do the rest of vehicle wiring like testing modules and connectors. :) ... Everytime I try to find info, it's some guy with a scope doing an hour long speech about looking for uneven signals.
I love electrical testing. Many times a multimeter is just fine, however the more I use a scope the more detail I see and can "see" more Cleary what is going on.
Great video Brian. I subscribed. Please do more videos on computerized networks. Your explanations are very clear and detailed, which makes for a great learning aid.
Loved the video, and I did a few screen shots by pressing the windows key and the shift key plus the S key. I had to Subscribe and like the video, so thank you for sharing this information.
Information like this is invaluable. Thanks for putting this out there! I'm glad I found your channel. If you ever find yourself in South Florida let me know.
Yep Free lunch when in Syracuse. Just shoot me a UA-cam comment. I've had a terrible theftlock issue on the Cadillac cts and all videos on UA-cam are wrong saying it's the computer. I've got low voltage 9.3 v between 5-16. But good voltage 12.9 v across 4-16. I now have a direction to go
Thanks for this info... I have a Seat Cordoba 6k2 2002 1.4 16v, and the problem is that wen i plugged it the scan tool the hole car resets (power off then on for a split second) also, the engine runs like crap a few hour's before it recover is self.... It's like it's going to protect mod or someting.. The connection gets lost as we'll... It's hard some times to even delete the errors... I'll try this test you showed us, maybe I'll find the problem... Thanks again
Excellent Question !!! honestly I am not sure, I have not personally seen many problems with the medium speed network. I also wonder what the specs should be for GM LAN like between the Info center buttons / radio and such.. SO much to learn. will reply if i figure some info out..
The medium speed will be at 60 Ohms. It uses the same principals as the High speed CAN bus, just running at a slower speed for the "non essential" modules. You'll be able to test it just the same as shown in this video for the High Speed CAN, but just at different pins at the DLC. The secondary bus will likely be on pins 3 and 11 at the DLC. Make sure to check your wiring diagram.
@@Grillzor my friend do you know what is pin 12, 13 and 14, what is the purpose, please help me to figure out.. i know pin 14 is CAN BUS. But the other two i do not know.
This is very well explained. Now in my 2007 Mazda cx7 everything is good according to your explanation to have a good can bus, good Battery voltage, good ground, good ohms reading between pin 6 and 14, and still my scanner can't connect to the computer to check for codes. Any idea, suggestion? I was able but to connect one out of 5 tries, and eventually ones out of 10 tries in a period of time of 6 month to a year and this year I was able to connect to the computer few times during the year to check for codes and now I am NOT able to connect at all. Any suggestion will be appreciate it. Just recently I did replace the obd2 connector, to eliminate the possibility of a bad Obd2 connector. Still I can't connect to computer.
Some manufacturers require the battery to be disconnected entirely to get an accurate ohms reading, on a Nissan Titan I got burned thinking the network was shorted together just to realize that in the service information I blew past “Remove negative battery terminal”. After I did that I got my 60Ohm reading
@@LuisMartinez-fr9gq my Car was OBDI compliant, not OBDII. But your video was very helpful. I thought long time ago that the port was broken. It wasn't. Just OBDI type. Thx
I am not the one who made the video, but thanks for replying, i was reading the section of comments, my car has an OBD II program so yes totally different, i have an issue my car does not start, only cranks, but at the same time my scanner will not connect to ECU, i want to check the pins Brian was explaining but my port OBD do not have pin 6 only pin 14 for CAN BUS. by the way i have a 2001 Hyundai Santa Fe 2.4, comes with 7 wires, 4 at the top and 3 at the bottom, do you know how can I get the info of each pin on my OBD II port.
Hi Brian thanks fore the greate video's ! I have a problem on my bmw 630i 2005 model , i exadently put 12v on the litle yellow and black whire 😔 of the canbus cables i that is was a tweetercable.. after i did it the car won t start !! I disconect the battery, pull al the relais out ,check the fuses and it seems fine , can you please tell me why it won t start .. and when ik put the computer in the OBD it make s no connection .. 😏 what do you think ? Thanks
Very nice video man. I have the following problem on my wrx from 2006. On key position 1 and 2 the obd port has power. When I turn the key on the last position the power on the OBD shuts off . When I hang my delfi diagnostic box on the obd port it also indicates on position 1 and 2 that it has power, but can´t connect to it. What could that be for a reason? The cigarette lighter has power on all key positions. Would be so thankful if you have any tipp to give. Kind regards.
The PCI bus is a single wire bus, not as easy to test, generally I get a scope out and test the signal and disconnect modules and connectors until it looks good.
Great video Brian. Any idea how to find out which modules house the termination resistors when the Computer Data Link wiring diagram does not show where the resistors are ? 2007 Ford Ranger. Thank You.
Great video on diagnosing the obd2 pins. So I have 80 ohms measurement with the key off with the leads in one direction with pins 6 and 14. And if I switch + - they read 40 ohms. But on another reading after the key was cycled they were back around 60 ohms. Little to no voltage between 4 and 6 at .06 volts or pin 4 and 14 are .04 volts. 2010 chevy tahoe limped home, barely running, guages going nuts etc. Won't start now. Any thoughts would be great Thanks again for the video
@@BrianMann216 so after looking at the CANbus voltage I ended up unplugging one thing at a time. The first one I unplugged was the abs module on the drivers undercarriage. As soon as I did, the can voltage went to 2.6 from 8. I chose this area because it's so exposed to elements. But it also showed connection to my obd2 again. Not finished yet but getting there. I suspected a bad ground also. I cleaned and checked a ton of stuff and nothing pointed to a ground problem so far Thanks for the reply. 👍
Best video I've seen yet. I have been scratching my head on this problem. My 08 pathfinder runs and drives fine. I just can't get communication to pass emissions. The only test that didn't read was between 4 and 5 I got nothing. 4 and 16, 5 and 16 was good. What do you suggest is the issue?
@@BrianMann216 Hello friend, one question i have a 2001 Hyundai Santa Fe 2.4 liter i do not have pin 6 for CAN BUS what would be my option pin to test CAN BUS for volts or resistance.
Hi if the resistance is not normal. Then what to check next. I mean not open or short circuit. I am asking about the resistance. And where these resistors are located.
I bought the cheapest and smallest oscilloscope a 20.00 dollar i am having problem to what frquency i should put. The multimeter does not show shorted or open can h or can low. I have been tryi g to fix my car a mercedes clk320, its been in a limp mode for 6 months
Excellent informative video Brian - glad to subscribe like and follow. Question - I did all the same things you did on a 2007 toyota prius and got all the same values, yet I still have codes U0111, C1259 and C1310 codes that are persistent...basically the battery not talking with the rest of the system. Reman battery is just shy of 2 years old. Wondering if the Battery ECU or the HV ECM needs to be replaced. Thanks!
I dont think that you have a wiring or circuit fault. More than likely module either not responding the way the other modules want due to a bad module or something causing a faulty input. I would clear all dtc's and see if only 1 code returns.
Brian Mann yep did that. Those are the 3 that persist. Won’t clear for anything including keeping the 12v disconnected for a significant period of time. FYI using Techstream for data collection. Someone else on the forums suggested checking for corrosion on the battery Ecu as a next step
working on 2011 volvo xc 60.u0199-00,u0200-00, 6 to 7 u codes lost communications. during that all lights come on. windows don't work.no radio. cluster not working either was checking it had 75 ohms of resistance. And 0.45v . any help would be appreciated
A lot of good info in such a short video. Wish all videos on UA-cam were like this. Straight and to the point. No time wasted. Thanks for sharing your knowledge.
Wow... I wonder why all the other auto electrical 'gurus' don't show us these tests! You are just so 'on point'... I can't thank you enough for this video, Happy day.
OMG plain simple and right to it, I couldn’t figure out a communication problem after watching this vid and testing exactly how you explained found Tcm was at fault. Thank so so so much it was between a couple hundred dollars and thousands of dollars. 👌🏼👌🏼👌🏼👌🏼
ABS Module here. Loose connector.👍
Just another person whom admires your plain and simple instructions. I've watched many and yours fits the bill. TY
This is how a video should be done. Good job sir. And i can't believe this is the first time I've seen or heard ANYTHING about these tests.
These are the tests for the less complex non gateway vehicles.
Great video. Accurate and comprehensive with no fluff. Thank you for your time.
Thank you Sir! I just got a 5.7L Hemi on a run stand and it would start but not run. Your tutorial led me straight to a need for a $0.15 resistor that got the CAN Bus working.
Just wondering all your control modules started communicating after that?
Mine has a problem it's reading 120 ohms and can't communicate to my scanner.
Bought a ecm and it still does the same thing.
Quick easy and to the point great found out the truck DLC connector was not the issue it was my scanner.
Good practical demo of dlc data, what to expect and how to obtain the correct readings. 5 🌟 for easy to do.
This is a great video -- most informative tutorial on how to test the DLC (OBD2) port I have found. Thank you for a job very well done!!
Thanks for watching! Dlc testing knowledge can save techs a ton of time.
Bonus points for U.S. and Gadsden flags. Thank you for good info and clear instructions
Our pleasure!
I am impressed. I grabbed it. thanks very much and God bless your efforts.
KNOWLEDGEABLE HANDS ON AUTO TRAINING
Outstanding tutorial 👌 👏 👍
Thank you very much helpful information video start to finish loved it
From Nick Ayivor from London England UK 🇬🇧
when you reading 2.5 volts, in ether side, (usually in both sides) means that you have a short on your network and you resistance test (with the key off o battery disconnected) will gives you a value of 0.1 or 0.2 ohms. In that particular test you did... reads 60.9 ohms which is alright and the volts on your low side is 2.3 +- 0.1 average and your high side is usually 2.7 +- 0.1 for the total of 5 volts that is why you read 2.639 and 2.343 = 4.943 + lead resistance usually 0.1= 5 volts +- something.
i did one today and literally read on 14 - 1.98 and 6 - 3.01
I was giving approximates. With a scope we could see acrivity. This is just a quick overview
@@BrianMann216 what if I have reading of 30.1 ohms ? .
I used to have more then 250.0 ohms on my toyota 4runner and I found out that my angel sensor causes the problem but after I fix it I have reading of 30.0 or less and sometimes 60.0 ohms .
I remember working on a 81 caprice that had the same connector. Had to jump the wire for a blinking check engine light. Thats how we got the codes. And before that we had no stinking codes. I love em both. Like a big greasey puzzle. 35 yrs as a hobby.. lots of fun cars.
Yeah that was a 12 pin a and b
Great job. Now to write thing down to keep it at my finger tips. Thanks Brian ❤️
this is one of the best i've found for my no start problem. found out why no start but does with the obd cable connected .... pin 4 ground is not grounded.
Excellent! It's crazy how hard it is to find basic troubleshooting info like this. ... now do the rest of vehicle wiring like testing modules and connectors. :) ... Everytime I try to find info, it's some guy with a scope doing an hour long speech about looking for uneven signals.
Now I see you have a few other vids about testing those things. BTW I'm not anti-scope, just a DIYer that doesn't have one.
I love electrical testing. Many times a multimeter is just fine, however the more I use a scope the more detail I see and can "see" more Cleary what is going on.
Very simple and well explained,great video!!
Ohms as high as 72 are acceptable. High resistance in the CAN will be visible with a scope as the sharp edges are rounded off.
in persian too " your job is true" . thanks sir. best regards. tech me very improve knowledge.
Very well explained. Thank you. From South Africa
Very gd video finally being more helpful to persons wanting to know what we EXPECT to see as far as voltages in testing methods sir thanks chuck
Brilliant summary, very clear explanations.
Thank you!
Nice job, glad to see you making some new content.
Thanks for sharing your knowledge and experties!
Was very helpful to me.
Man... Very detailed... You are teaching class 👍 Now... Let's talk about PATS!!!
What specifically do u want to know abour.?
I watch a lot of video but I never understood we learn quickly with you ,we waiting more videos to learn electrical
Excellent explanation. Thanks
Thank you that was very helpful, awesome explanation
Thank you sir, I appreciate your instruction very special .you don't need expensive analyzer to shoot the trouble of can bus.
Excellent video, just what I needed. Thanks
Great video Brian. I subscribed. Please do more videos on computerized networks. Your explanations are very clear and detailed, which makes for a great learning aid.
I have 1 I am editing now...
@@BrianMann216 Great! Thanks.
Loved the video, and I did a few screen shots by pressing the windows key and the shift key plus the S key. I had to Subscribe and like the video, so thank you for sharing this information.
Thank you for doing this video i am fixing my 2006 malibu myself and was getting a no communication to my pcm pins 6 and 14 is reading 76.5 ohm
Information like this is invaluable. Thanks for putting this out there! I'm glad I found your channel. If you ever find yourself in South Florida let me know.
An exelent. Information..thanks
Yep
Free lunch when in Syracuse. Just shoot me a UA-cam comment. I've had a terrible theftlock issue on the Cadillac cts and all videos on UA-cam are wrong saying it's the computer. I've got low voltage 9.3 v between 5-16. But good voltage 12.9 v across 4-16. I now have a direction to go
great keep it simple video. i had to watch it many times to get it all...
Great job . this is exactly what i was looking for
Great presentation and exactly what I was looking for. Thanks!
exellent video!!! one think how to find out what color going to which pin???
Great video, great instructor and tutorials, but I want of your videos. 👍🏽
Brian great video. I am so glad you're back making videos
Thanks Greg.. will be making more stay tuned!
German line vehicles have had gateway modules for quite some time, domestics just started adding them
Excellent video, sir! Thank you. Thumbs up to let UA-cam know it is very good!
Very useful and very well explained.
Thank you so much
Glad it was helpful!
Many thanks for posting. Excellent video thanks
awesome, thank you for sharing your time and knowledge
Beautiful job and informative
Thank you!
Very helpful explanations. Thank you for making this.
Thanks for this info... I have a Seat Cordoba 6k2 2002 1.4 16v, and the problem is that wen i plugged it the scan tool the hole car resets (power off then on for a split second) also, the engine runs like crap a few hour's before it recover is self.... It's like it's going to protect mod or someting.. The connection gets lost as we'll... It's hard some times to even delete the errors... I'll try this test you showed us, maybe I'll find the problem... Thanks again
Very good explanation thank you!
very good explanation! quick question what would be the resistance reading for example fords medium speed network? 60?
Excellent Question !!! honestly I am not sure, I have not personally seen many problems with the medium speed network. I also wonder what the specs should be for GM LAN like between the Info center buttons / radio and such.. SO much to learn. will reply if i figure some info out..
The medium speed will be at 60 Ohms. It uses the same principals as the High speed CAN bus, just running at a slower speed for the "non essential" modules. You'll be able to test it just the same as shown in this video for the High Speed CAN, but just at different pins at the DLC. The secondary bus will likely be on pins 3 and 11 at the DLC. Make sure to check your wiring diagram.
Thanks for the Information !! If I come across one I will share.
@@Grillzor my friend do you know what is pin 12, 13 and 14, what is the purpose, please help me to figure out.. i know pin 14 is CAN BUS. But the other two i do not know.
This is very well explained. Now in my 2007 Mazda cx7 everything is good according to your explanation to have a good can bus, good Battery voltage, good ground, good ohms reading between pin 6 and 14, and still my scanner can't connect to the computer to check for codes. Any idea, suggestion? I was able but to connect one out of 5 tries, and eventually ones out of 10 tries in a period of time of 6 month to a year and this year I was able to connect to the computer few times during the year to check for codes and now I am NOT able to connect at all. Any suggestion will be appreciate it. Just recently I did replace the obd2 connector, to eliminate the possibility of a bad Obd2 connector. Still I can't connect to computer.
Hi Brian, all tests check good, except 4 and 5, could only get a reading with key on engine off of 1mv, thanks for the Instruction videos Great!!
Great job 👏 and Good work easily understand thank you ☺️
Nice it gives us knowledge about this and thank you for a very clear explanations it helps us a lot
Thank you so much sir
Some manufacturers require the battery to be disconnected entirely to get an accurate ohms reading, on a Nissan Titan I got burned thinking the network was shorted together just to realize that in the service information I blew past “Remove negative battery terminal”. After I did that I got my 60Ohm reading
Thanks for commenting, this is sure to help others!
very easy to understand video. can you do one on the K & L lines
Maybe sometime, they are more of a standard single line, not as much fun as CAN lol
Thank you sir. This video is very help full for me.
Very helpful, thank you.
Good explenation sir, by the way sir where the obd port location,for mitsubishi pajero 1992 model automatic transmission , thanks.
Priceless info. Thank you very much.
Just subscribed thankyou very much I was always confused how to use the ohmmeter Everyone else assumes you know THANKS
Nice vídeo!!! It's what i needed since my elm obd2 isn't connected to my scanner. Regards from Argentina
Thank you for the video. I wish I had seen it before I ordered a breakout box.
Break out box is good! Saves possible damage to dlc pins when probing. Also makes easy scope hook up, you will be glad you have it.
It was good, i am going out right now for practise. Thx
Please show us the results!!!
@@LuisMartinez-fr9gq my Car was OBDI compliant, not OBDII. But your video was very helpful. I thought long time ago that the port was broken. It wasn't. Just OBDI type. Thx
I am not the one who made the video, but thanks for replying, i was reading the section of comments, my car has an OBD II program so yes totally different, i have an issue my car does not start, only cranks, but at the same time my scanner will not connect to ECU, i want to check the pins Brian was explaining but my port OBD do not have pin 6 only pin 14 for CAN BUS. by the way i have a 2001 Hyundai Santa Fe 2.4, comes with 7 wires, 4 at the top and 3 at the bottom, do you know how can I get the info of each pin on my OBD II port.
Great video. Amazing background.
great video and it's priceless information i can't find the words to thank you
I am glad to be able to help. What other automotive electrical subjects interest you?
@@BrianMann216 thank you sir for your reply. i am new to learn the waveform of any sensor
Very nice good information 🎉🎉🎉
Great Video was able to solve issue that I had.
GREAT VIDEO DEMO ON THE OBD2 THANKS
Nice clear tutorial. Thanks!
Great video
One question. What is happening if no ohm reading is present ? I get no reading at all.
I would think an open between the dlc and the rest of the network
@@BrianMann216 Thank you for the response. I would assume that dlc to CAN BUS to the rest of the modules?
Hi Brian thanks fore the greate video's ! I have a problem on my bmw 630i 2005 model , i exadently put 12v on the litle yellow and black whire 😔 of the canbus cables i that is was a tweetercable.. after i did it the car won t start !! I disconect the battery, pull al the relais out ,check the fuses and it seems fine , can you please tell me why it won t start .. and when ik put the computer in the OBD it make s no connection .. 😏 what do you think ? Thanks
Very nice video man. I have the following problem on my wrx from 2006. On key position 1 and 2 the obd port has power. When I turn the key on the last position the power on the OBD shuts off . When I hang my delfi diagnostic box on the obd port it also indicates on position 1 and 2 that it has power, but can´t connect to it.
What could that be for a reason? The cigarette lighter has power on all key positions. Would be so thankful if you have any tipp to give.
Kind regards.
timeless. alot if info had to watch it many times
Great stuff Brian!
wow this is great information. thank you. and do you know if Prius is....and as I was writing this you answered. thanks again.
For the PCI bus in my 2004 Dodge Grand Caravan is there an equivalent resistance to be expected as the 60 ohms in the CAN bus?
The PCI bus is a single wire bus, not as easy to test, generally I get a scope out and test the signal and disconnect modules and connectors until it looks good.
@@BrianMann216 Thank you. Excellent video.
Great video Brian. Any idea how to find out which modules house the termination resistors when the Computer Data Link wiring diagram does not show where the resistors are ? 2007 Ford Ranger. Thank You.
Many times deep in the service information , sometimes description and operation of data bus they will tell you.
Great video!! I have a GMC and tested pins 4 and 14, I got 3.5v what does that mean??
Could be a bad ground. What does a scope capture show the bias voltage as?
Great explanation and demonstrations
Great video on diagnosing the obd2 pins. So I have 80 ohms measurement with the key off with the leads in one direction with pins 6 and 14. And if I switch + - they read 40 ohms. But on another reading after the key was cycled they were back around 60 ohms.
Little to no voltage between 4 and 6 at .06 volts or pin 4 and 14 are .04 volts.
2010 chevy tahoe limped home, barely running, guages going nuts etc. Won't start now.
Any thoughts would be great
Thanks again for the video
I would suspect a bad ground
@@BrianMann216 so after looking at the CANbus voltage I ended up unplugging one thing at a time. The first one I unplugged was the abs module on the drivers undercarriage. As soon as I did, the can voltage went to 2.6 from 8. I chose this area because it's so exposed to elements. But it also showed connection to my obd2 again.
Not finished yet but getting there.
I suspected a bad ground also. I cleaned and checked a ton of stuff and nothing pointed to a ground problem so far
Thanks for the reply. 👍
شكرآ لك أخي هذا الدرس مفيد جدا الله يحفظك
Best video I've seen yet. I have been scratching my head on this problem. My 08 pathfinder runs and drives fine. I just can't get communication to pass emissions. The only test that didn't read was between 4 and 5 I got nothing. 4 and 16, 5 and 16 was good. What do you suggest is the issue?
With key off what is resistance between 6&14 ?
You should have 12 volts from pin 4 or to 16...
If key is on you should read 2...volts pin 4 to 14. Using pin 5 instead of works the same.
@@BrianMann216 Hello friend, one question i have a 2001 Hyundai Santa Fe 2.4 liter i do not have pin 6 for CAN BUS what would be my option pin to test CAN BUS for volts or resistance.
Thank you very much for your trining video is excellent sir
Nice mine , frumos, inteligență, thank You mann, mulțumesc...from România.
very correct and nicely done!
If the battery is disconnected will pins 6 and 14 still read 60 ohms? Or 120 ohms?
Great information 👍
Thanks for that its the first I've seen
Hi if the resistance is not normal. Then what to check next. I mean not open or short circuit. I am asking about the resistance. And where these resistors are located.
great teacher,thank you,
I bought the cheapest and smallest oscilloscope a 20.00 dollar i am having problem to what frquency i should put. The multimeter does not show shorted or open can h or can low. I have been tryi g to fix my car a mercedes clk320, its been in a limp mode for 6 months
great information, and thank you for your service..
Very helpful video sir
Excellent informative video Brian - glad to subscribe like and follow. Question - I did all the same things you did on a 2007 toyota prius and got all the same values, yet I still have codes U0111, C1259 and C1310 codes that are persistent...basically the battery not talking with the rest of the system. Reman battery is just shy of 2 years old. Wondering if the Battery ECU or the HV ECM needs to be replaced. Thanks!
I dont think that you have a wiring or circuit fault. More than likely module either not responding the way the other modules want due to a bad module or something causing a faulty input. I would clear all dtc's and see if only 1 code returns.
Brian Mann yep did that. Those are the 3 that persist. Won’t clear for anything including keeping the 12v disconnected for a significant period of time. FYI using Techstream for data collection. Someone else on the forums suggested checking for corrosion on the battery Ecu as a next step
@@wannafly34 yes time to start voltage drop testing powers and grounds. I have not had time to research further.
working on 2011 volvo xc 60.u0199-00,u0200-00, 6 to 7 u codes lost communications. during that all lights come on. windows don't work.no radio. cluster not working either was checking it had 75 ohms of resistance. And 0.45v . any help would be appreciated
Hi,I dont get a reading on pins 6 and 14, what do you recommend I check next
good job Sr.