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  1. Transmission Unable to Shift Into Reverse - Check Engine Light

    Unfortunately the tech who found the disconnected pin was out of the shop today. I have to go back on Monday to talk to him. The techs I spoke with today weren't the ones working on my truck and didn't know any details about the damaged pin. What they did say was that the other tech attempted to...
  2. Transmission Unable to Shift Into Reverse - Check Engine Light

    Excellent analysis, thank you @airline tech Your hypothesis makes a lot of sense that a short circuit heated up and melted the connector, causing the ground pin to disconnect. Based on the last diagram you shared, the TSS, TR, and TFT sensors all reside within the transmission and therefore...
  3. Transmission Unable to Shift Into Reverse - Check Engine Light

    Thanks for the pinout! I'll post photos here if I decide to go the DIY route.
  4. Transmission Unable to Shift Into Reverse - Check Engine Light

    That does seem possible. Most of these connector bodies have a locking geometry to prevent pins from just falling out.
  5. Transmission Unable to Shift Into Reverse - Check Engine Light

    Thanks for the input, that makes sense. I haven't mentioned the word "lawyer" to them yet as I didn't want to close any doors. It couldn't hurt to call them again but I need to cool off a while before doing that.
  6. Transmission Unable to Shift Into Reverse - Check Engine Light

    2019 Lariat FX4 - 42,000 Miles - Under 5-Year Powertrain Warranty Until March 2025 Tried to shift into reverse to leave the grocery store parking lot. The "R" indicator on the dash and the backup camera began rapidly flickering on/off, when I released the brake pedal the truck slowly started...





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