Codes P0716, P0721, P0791, transmission issue, the car will not Move at all in any gear

Tiny
KDEYO88
  • MEMBER
  • 2013 DODGE AVENGER
  • 2.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 129,783 MILES
The shifter will move and the correct selection lights up on dash, but car won't move. It has thrown codes p0716, p0721, p0791. The fluid and filter have been replaced, visual inspection of wires and connectors reveal nothing, all fuses are good. It kind of revs up and acts like it wants to move in reverse but it doesn't. Check engine light on but that's only light that has ever appeared.
Monday, May 30th, 2022 AT 8:50 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The codes
P0716 Input speed sensor 1 circuit performance
P0721 Output speed sensor circuit performance
P0791 Transfer speed sensor circuit

These codes can get triggered due to a number of reasons. It could be not getting proper signal due to wiring issue, bad sensors, or issue with the powertrain control module (PCM).

See below, I have attached the diagnostics guide for these codes. Follow those processes, as it can help you determine the issue.

Let me know of any questions.
Thank you.

https://www.2carpros.com/articles/automatic-transmission-problems
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Tuesday, May 31st, 2022 AT 8:44 AM

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