What is a position sensor switch A circuit malfunction on 1998 Toyota 4Runner

I code reader shows code P0120 is position sensor switch A circuit malfunction... what does that mean?

by in Houston, TX on August 15, 2010
1 answer
ANSWER by on August 16, 2010
It means the computer is not seeing what it should from the sensor (throttle position sensor). It could be a bad sensor or problem with the wiring for the sensor.