Get an elm327 bluetooth code reader off of Amazon and either the Torque app on Android or Car Wizard on Apple to clear the codes. New battery or clean the connections. You will be good to go.

And thanks for your service - hit me or the forum up any time -you will get special, personal service.

 

I paid cash for a new transmission in 2004 (shop said I needed one). I later found out (when the same symptoms returned on the drive home with the new transmission) that it was the battery. As others noted, poor grounding can also cause the problem.

The other time I had them, the cable connection just behind the gear selection mechanism on the driver side of the transmission was not connected (my fault, after replacing the wiring harness).

There are other possible causes but those are easy to check.

 

X1 .................. without DT codes and clearing them plus a fully charged battery you might as well pee into the wind.

 

Thank so much. I found that if I don't shift into reverse it's fine. It seems like it's the neutral safety switch? Maybe? Lol. Damn times like these I miss Afghanistan.

 

This morning I got the P0705 trouble code when I was driving up levels in a parking garage. My S&M lights were flashing and somehow I lost gears. Even though I was in "Drive", I pressed the gas pedal my Disco started rolling backwards like it was in Neutral.
I rolled backwards to safe spot in the garage, cleared the P0705 code with my Nanocom and drove off like nothing happened.
My battery connections are good and I never had that happen before. Weird...

 

Now that's freaking STRANGE

 

Mine was showing S and M, as well as stuck in limp mode. I tried all the forum fixes, new battery, xyz thing, was even eyeballing a new transmission control unit thing. Turns out the dang electrical connector on the side of the tranny was broken and not making a good connection. Took it off, cleaned it up with some contact cleaner, epoxied the broken spots, and plugged it back in. Everything worked great at that point, made me feel like a real idiot. As a communications and tech guy, "is it plugged in?" didn't even pop in my brain until I already threw a bunch of cash at it.

 

Doh! Those parts would have failed anyway... you are good for a long time now.

 

Any update?