OBD2 Port Not Working Properly

[Clavurion]

Originally Posted by Fatcat

Would you consider these results normal or is there something wrong with the Port? Pin 8 and 9 are the ones that give me some suspicion something is wrong. I know I was told to open the OBD2 port but I'm not sure if its necessary anymore, if I face more problems in the future then I will (knock on wood).

Nothing obviously wrong in that picture. Pin 9 (TD) is not actually used on these diagnostics. Pins 7+8 anything above 2 V is enough for bus to work. Those pins are connected together on the diagnostic interface.

[oldskewel]

Found this:


Wow, I just got a reminder of why it is so painful to use this forum. Took me about 10x longer to make that image (probably unreadable by now) uploadable to the site, vs. to find it on the google machine.

The original URL is at
https://www.flexihub.com/oobd2-pinout/

That is a great feature of the Foxwell NT710.

I have the Foxwell NT520Pro, and have a related story of the OBD2 port going kind of dead for a couple of years ...

I used to use the Foxwell and the INPA (I think) regularly with no problems, got the car perfect. Then did not use either for a while and coming back, the INPA was completely non-functional. The Foxwell kind of worked: would not auto-read the VIN, and would read about half of the modules when doing an auto scan. For the things it could read, it seemed perfectly functional. I read the forum, trouble-shooted, checked connectors, pins, soldered the INPA connector, loaded to a new laptop, etc., and then gave up.

Car ran perfectly during all this.

Couple of years later, my daughter was driving the car down in SoCal and called me to let me know she had just hit a huge pothole that slammed the car and made every light in the instrument panel come on and it looked like a Christmas tree. She had the Foxwell in the car, plugged it in, did a quick erase, and everything went away ... AND THE OBD2 PROBLEM WAS NOW FIXED.

Not the greatest repair method, but maybe it will help those who troubleshoot the hell out of their system know that it just might be near-impossible short of a pothole to fix it.

[Clavurion]

Originally Posted by oldskewel

Found this:
Attachment 85175

Wow, I just got a reminder of why it is so painful to use this forum. Took me about 10x longer to make that image (probably unreadable by now) uploadable to the site, vs. to find it on the google machine.

The original URL is at
https://www.flexihub.com/oobd2-pinout/

That is a great feature of the Foxwell NT710.

I have the Foxwell NT520Pro, and have a related story of the OBD2 port going kind of dead for a couple of years ...

I used to use the Foxwell and the INPA (I think) regularly with no problems, got the car perfect. Then did not use either for a while and coming back, the INPA was completely non-functional. The Foxwell kind of worked: would not auto-read the VIN, and would read about half of the modules when doing an auto scan. For the things it could read, it seemed perfectly functional. I read the forum, trouble-shooted, checked connectors, pins, soldered the INPA connector, loaded to a new laptop, etc., and then gave up.

Car ran perfectly during all this.

Couple of years later, my daughter was driving the car down in SoCal and called me to let me know she had just hit a huge pothole that slammed the car and made every light in the instrument panel come on and it looked like a Christmas tree. She had the Foxwell in the car, plugged it in, did a quick erase, and everything went away ... AND THE OBD2 PROBLEM WAS NOW FIXED.

Not the greatest repair method, but maybe it will help those who troubleshoot the hell out of their system know that it just might be near-impossible short of a pothole to fix it.

A case of partially failed ignition switch temporarily fixed by that bump?

[oldskewel]

Originally Posted by Clavurion

A case of partially failed ignition switch temporarily fixed by that bump?

I'll definitely keep that in mind for future debugging. Thanks. Are you confirming you think that would give the symptoms I mentioned? Thanks for reading the story there.

BTW, due to other problems and distractions in my life, the car has been sitting in my driveway for a couple of years now, just driven around the block periodically, which it does very well other than some weird electrical issues with the lights being on when they should not (headlights, brake lights, lots of them), even with the key out. I make that a non-issue for now with my convenient battery switch disconnect - otherwise it would drain the battery, set off the alarm, etc.

[andrewwynn]

when I have tools rattling in the back of my car going over a speed bump a little too fast usually gets it all settled down


–awr–

Using Tapatalk VIP on iPhone

[X5chemist]

Mine has a similar glitch. It has happened 2/3 times. If I accidently leave the turn signal lever either left or right, the front turn signal turns on. Once to the lever is in a neutral position, the light turns off. It seems switches keep the body control module awake.

[andrewwynn]

Originally Posted by X5chemist

Mine has a similar glitch. It has happened 2/3 times. If I accidently leave the turn signal lever either left or right, the front turn signal turns on. Once to the lever is in a neutral position, the light turns off. It seems switches keep the body control module awake.

Not a glitch. Turn signal on will illuminate that side's parking lights to make the car visible at night. I've used it many times. Sadly they removed that feature in the e70!


–awr–

Using Tapatalk VIP on iPhone

[Clavurion]

Originally Posted by andrewwynn

Not a glitch. Turn signal on will illuminate that side's parking lights to make the car visible at night. I've used it many times. Sadly they removed that feature in the e70!


–awr–

Correct! Works well if you for example have to ditch a broken vehicle for a longer time and can't leave the hazards on.