After repairing 4 questionable conductors in the trans harness near the fuel filter, I still had the code. Finished up doing the rest of the plowing I needed to do, I got everything thawed off and dried out, and went back at it. When I bought the truck 5 years ago, I knew it had set at different times for extended periods, based on its mileage. A 99 doesn't have 68,000 miles on it without setting a while. Apparently, when the previous owner let it set, it was in an area where mice or squirrels or woodchucks could get under it and chew. I found another section of harness near the steering column that had 2 broken conductors, and one more that broke when I pulled on it. Soldered those all up, checked all the harness I could uncover, and I got 1,2,D and OD now. I can only imagine how much this would have cost if I had taken it to a garage! Good times in super duty land again.

 

Way to go Toyshop.Ain't it great to be self-reliant AND tenacious!

Thanks for enlightening us too.

 

There have been a few people around who have called me tough- that's not true.....but I am a gritty little s---. if it was easy, everyone would do it.

 

I have a 2003 Ranger with auto trans. After you drive over 45 for a few miles, the o/d off light will begin to flash. It will shift hard from 1st to 2nd until you shut the engine off. When you restart the engine, the light will stay off until you drive over 45 again. then it all starts over again. Can anyone help?

 

Get the codes read. Don't go to an auto parts store, they can't read the codes you need.

 

I took my truck to transmission shop to get a new transmission. after they rebuilt and reinstalled the od light is still flashing. truck is sluggish on take off. when you shift to 1st low truck takes off better, shifting into 2nd nothing changes, when put into drive it shifts again. Codes coming up for tranny is p0750, p0755, p0743, p1754, p1746. i check all fuses and non are blown, also transmission ranger sensor plug is good i took it apart and cleaned it up. was curious if anyone has any ideas. 2000 f350 7.3 with a 4r100 transmission.

 

What did the transmission shop tell you to do?

 

Take it back to the shop. Either the rebuild is faulty or the diagnosis that it needed rebuilding was wrong.

The TRS has nothing to do with any of those fault codes.

Since you have electrical circuit faults for all 5 solenoids in there, it's probable that the fused circuit that supplies all of them is open. That would be fuse F07 in the fusebox under the hood. Comes into the transmission on connector pins 1 & 12. Go back an do an electrical check of that fuse and its socket. Should be HOT IN START/RUN. Simply pulling the fuse out and staring at it isn't enough unless it's obviously blown. If power is good to the transmission connector, then there's an internal wiring harness issue.

 

thanks everyone for the reply's. so the transmission shop said there is some wiring issue and they cannot connect to the transmission. i dont understand this because mine read the codes. i think they are trying to pass it off. i tore into the wiring harness and found one faulty wire i soldered and heat shrink. i got ordered new plugs before i tore into this just in case, so im sitting here with extras plug not. not a bad thing for the future. since i fixed this wire the truck takes off better and over drive light stays off until truck shifts into second gear. once in second gear truck stays in it and over drive light comes on and put truck into limp mode. If i restart truck and drive slow keeping in first gear over drive light stays off. i will check fuses again. but i always continuity check fuses just way easier.

 

I literally have the same Issue Word for word... did you figure out your problem? a post from 2011 its a long shot but worth a try.

 

I know I probably have not looked everywhere, but I cannot find the actual wiring diagram for a 97 Ford F150 lariat 4 x 4 for the harness plug that goes to the neutral safety switch. It is a 12 pin rectangular plug and it only has one empty slot. #6 pin. All the wiring diagrams that I’m finding that shows the colors and purpose of each wire are missing or showing not used the number six, which is OK. But also not used missing. # 9, 10. My plug has wires at position nine and 10. Do you or anybody have a diagram showing what those wires and colors are? Please, please, please and many thank you’s