2002 Toyota Highlander

Transmission problem
2002 Toyota Highlander 6 cyl Four Wheel Drive Automatic 32450 miles

I have engine code: P1730 NC revolution sensor circuit.

What does it mean and where can I locate it in the car.

The initial problem was check engine light which also affected my transmission and also was unable to go to higher gears.

Please I need your advice on this topic.
July 18, 2008.

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