سنسور موقعیت ماهک دنده معیوب

The sensor that tells an automated gearbox exactly where each shift fork stands — and therefore whether a gear is truly engaged. When it lies, the gearbox distrusts real gears: the module will not hand torque to a gear it cannot confirm, so a healthy rail's gears go missing from the box's repertoire while nothing mechanical is wrong at all.

Distinguish it from the mechanism with live data: a sensor fault shows a reading that jumps, freezes or sits between positions while the actuator demonstrably moves; a genuinely stuck fork shows a clean reading that refuses to change. The two repairs differ by the entire cost of opening a gearbox, which is why the distinction is worth an hour of measurement.