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What is causing the 0705 error in my 2007 Ford Fairmont?

I'm getting an error 0705 gearbox problem in my '07 Ford Fairmont. Can you please help me with this problem?

Sometimes, the codes spat out by the on-board computer can be quite vague. But this isn’t one of them; in fact, it’s quite specific. Checking the code against the translation reveals that code 0705 refers to a faulty signal from the transmission-range sensor. This sensor sends information to the engine and/or transmission control module and is responsible for those computer modules knowing what the driver is asking for via the gear selector. Without a correct Park or Neutral signal from the transmission-range sensor, the engine won’t crank and start. Beyond that, the gearbox may select the incorrect gear thanks to the incorrect signal being sent. Replacing the range sensor is probably the fix you need to look at.

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