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310sg powershift weak

bbacher42 · 2025-07-17 09:19

Hi, have 2004 310sg serial number T0310SG942360. Transmission intermittently won't turn the tires unless machine is in the air. When this occurs sometimes the park brake/seatbelt alarm sounds. If the machine is in motion and you push the button to take air out of the seat the machine then will coast to a stop like it was kicked into neutral. Dealer took a look and said there is a short to wire number p24. They want to replace the whole harness. $$$. Any way to find a wiring diagram on where exactly that wire is? Guessing the wire is cut or rubbed somewhere. Ecu, display, and the time delay have all been replaced recently.

Replies4
  1. #1mg23612025-07-17 12:14

    Sounds like a seat switch/wiring issue. If the controller thinks the seat is turned while moving, it will disengage the transmission. The wiring in the seat swivel for the seat position switches has been an issue for years.

  2. #2mg23612025-07-17 12:15

    Check your messages.

  3. #3bbacher422025-07-17 14:02

    Thanks, the seat switches were replaced 500 hours ago on the machine. You still think they could be the culprit?

  4. #4mg23612025-07-18 04:37

    Or the wiring. I am highly suspicious due to the comment: