Mitzabishi canter wiper problem

Normally caused by the cancelling mechanism in under the centre of the steering wheel.

I have the same problem on my Landcruiser 2017 Cab Chassis only the fault is
Intermittent and , of course, wouldn’t, do it at the two dealers I have taken it to.
Grrrrr
Ross

Peter
Most wiper motors have, I presume the Canter is same concept, 3 or 4 small screws on the rim of the gear enclosure. After the motor worm drive and linkage has worn a bit it causes the large gear to overrun it's original position slightly. That overrun allows the segment of park ring inside to be earthing to negative instead of stopping. Usually, if you loosen the small rim screws and turn the plate with the nylon fitting a few degrees in the direction of arm rotation it should then park as normal.

The motor shaft usually has a screw adjustment with a lock nut. Over time and useage there WILL be more end float than original. The screw rests against a small ballbearing in the end of the motor shaft. That screw, with locknut loosened, should be turn inward, clockwise thread, so to restore the minimal endfloat of the motor shaft. The adjusting screw should not be tightened against the motor shaft, just loose slightly. That stops the internals flapping around as it is turned off. DO that adjustment first then the circular plate rotation adjustment second. There could be other issues but the adjustment is a starting point.

PS mark the plate and body so you know where you started from.