[NNL21]

My car will not engage gear when this light appears, and I could not change to Manual as well. The gear indicator also starts changing to different gears such as, it might jump from 2nd to 4th gear while the car is at stationary. It disappears when I restart my car but it comes back after a couple of minutes. My car is with Dodson sportsman kit and running around 680bhp. I would really appreciate some help and advice if you guys have experienced this before or know what is happening. I checked with my accessport and the following error codes showed up.

Multi AV
U1300
U1241

TRANS
P0731
P0731

E-SUS
C1d17

Thank you.

 

[Martin Donnon]

Piston seal, selector fork, or synchro problem
All are fairly easily fixed, but the transmission will be coming out to do so

 

[GTRHU]

Or just need clean selector pistons and valve body.
I was this code half year ago, then we cleaned valve body, and pistons, then working fine.

 

[NNL21]

Thank you very much for the information. I appreciate it.