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Throttle Position Sensor (TPS)

Turn ignition off and disconnect electrical connector at TPS. Insert a thickness gauge between throttle stop screw and throttle lever. Using an ohmmeter, check resistance values. See Fig 1. If values are not as specified in chart, adjust or replace TPS.

Fig 1: Checking Throttle Position Sensor (TPS)
G42204Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: Perform adjustment before replacing sensor.