Diagnostic port connection error
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7th Gear
Joined: Oct 2019
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Diagnostic port connection error
Just bought a very clean fairly stock 1997 F350 a few weeks ago and have been going through it checking everything and doing fluids. The truck came with one of those old Edge evolution programmers behind the seat and definitely drives like it has 1 of the 3 tunes in it. Went to plug the programmer in to see if there were any powertrain codes and take the truck back to stock but it wont do anything when I try to check codes or change the program it just says connection error check the cable and try again.
It has battery voltage at pin 16 and pin 4 is grounded as the programmer lights up and gets power but other then that I'm lost on where to go next.
Any other tests I can run to chase things down? I have read that these programmers have been known to wipe out a few trucks electronics before, not sure if that is the case here or what. Any help would be appreciated, I'm used to old 1960s fords with carburetors this is my first vehicle newer then 1980 in years.
It has battery voltage at pin 16 and pin 4 is grounded as the programmer lights up and gets power but other then that I'm lost on where to go next.
Any other tests I can run to chase things down? I have read that these programmers have been known to wipe out a few trucks electronics before, not sure if that is the case here or what. Any help would be appreciated, I'm used to old 1960s fords with carburetors this is my first vehicle newer then 1980 in years.
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7th Gear
Joined: Oct 2019
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Yes, that was the first thing I checked was the fuse that powers that and the OBD2 port. It is good and the lighter works. I believe that is what supplies the 12 volts to Pin 16 which powers the programmer/reader up.
Hotshot
Joined: Oct 2003
Posts: 17,799
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From: Ashland City, TN
Yeah, it's a stupid question, but nobody really knows that the cigarette lighter and OBD port are on the same power fuse. =)
Tuned
Joined: Apr 2018
Posts: 329
Likes: 17
Is this a running, working, drivable truck? Any glitchy computer stuff going on?
Never messed with an Edge, but ...
There's a section in the diagnostic manual for troubleshooting DLC connection problems, but I don't have easy access to it now. In the past I may have posted a link to it.
Off the top of my head, IIRC, there are some power distribution checks, relays, fuses and such. Also maybe interconnection issues with the IDM could be an issue. Maybe. There's a link around here somewhere that will take you to the diagnostic manual.
Never messed with an Edge, but ...
There's a section in the diagnostic manual for troubleshooting DLC connection problems, but I don't have easy access to it now. In the past I may have posted a link to it.
Off the top of my head, IIRC, there are some power distribution checks, relays, fuses and such. Also maybe interconnection issues with the IDM could be an issue. Maybe. There's a link around here somewhere that will take you to the diagnostic manual.
Thread Starter
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7th Gear
Joined: Oct 2019
Posts: 7
Likes: 0
Is this a running, working, drivable truck? Any glitchy computer stuff going on?
Never messed with an Edge, but ...
There's a section in the diagnostic manual for troubleshooting DLC connection problems, but I don't have easy access to it now. In the past I may have posted a link to it.
Off the top of my head, IIRC, there are some power distribution checks, relays, fuses and such. Also maybe interconnection issues with the IDM could be an issue. Maybe. There's a link around here somewhere that will take you to the diagnostic manual.
Never messed with an Edge, but ...
There's a section in the diagnostic manual for troubleshooting DLC connection problems, but I don't have easy access to it now. In the past I may have posted a link to it.
Off the top of my head, IIRC, there are some power distribution checks, relays, fuses and such. Also maybe interconnection issues with the IDM could be an issue. Maybe. There's a link around here somewhere that will take you to the diagnostic manual.
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7th Gear
Joined: Oct 2019
Posts: 7
Likes: 0
Well temp gauge was just a bad sender, new Motorcraft sender and its working perfect.
Tried unhooking the batteries for a while but still no functioning OBD2 port. Tracing them under the dash is going to be difficult as they immediately enter a large loom. Any other input would be helpful
Tried unhooking the batteries for a while but still no functioning OBD2 port. Tracing them under the dash is going to be difficult as they immediately enter a large loom. Any other input would be helpful
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Tuned
Joined: Apr 2018
Posts: 329
Likes: 17
Try another adapter if possible. It must be SAE j1850 PWM to work with these trucks. Use other adapters and trucks to swap around until you verify what works.
I'll try to remember to post that diagnostic routine for the DLC.
This link is good background:
https://forscan.org/forum/viewtopic.php?f=4&t=6142
I'll try to remember to post that diagnostic routine for the DLC.
This link is good background:
https://forscan.org/forum/viewtopic.php?f=4&t=6142
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Thread Starter
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7th Gear
Joined: Oct 2019
Posts: 7
Likes: 0
Try another adapter if possible. It must be SAE j1850 PWM to work with these trucks. Use other adapters and trucks to swap around until you verify what works.
I'll try to remember to post that diagnostic routine for the DLC.
This link is good background:
https://forscan.org/forum/viewtopic.php?f=4&t=6142
I'll try to remember to post that diagnostic routine for the DLC.
This link is good background:
https://forscan.org/forum/viewtopic.php?f=4&t=6142
I could see if one of my mechanic buddies can let me take my truck in and after hours and plug in one of there fancy snap on readers but think I’ve proved it’s an issue with the truck not the readers from all of that.
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7th Gear
Joined: Oct 2019
Posts: 7
Likes: 0
So finally got back on this, Traced wires and pin 10 and 13 are good all the way from the OBD2 port back to the PCM connector so all I can think is its an issue internally with the PCM. Not sure were to go from here. Can a dealership check it out, maybe reflash the pcm to stock if its a software issue?
Thanks
Thanks
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