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Throttle Position Sensor

  1. Turn ignition off. Disconnect electrical connector from Throttle Position (TP) sensor on throttle body. Note terminal identification. See Fig 1.
    NOTE: Some models require that vacuum be applied to throttle opener before checking (TP) sensor. See TP SENSOR RESISTANCE SPECIFICATIONS  table.
  2. Insert specified thickness feeler gauge between throttle stop screw and throttle lever and check resistance or continuity. See the TP SENSOR RESISTANCE SPECIFICATIONS  table. Replace or adjust TP sensor if not within specification.
Fig 1: Checking Throttle Position Sensor
G95E31587Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TP SENSOR RESISTANCE SPECIFICATIONS

Application Type Clearance In. (mm) Terminals Tested Ohmmeter Reading
3.0L (1) 0 (0) VTA & E2 280-6400
3.0L (1) .014 (.36) IDL & E2 500 Or Less
3.0L (1) .028 (.71) IDL & E2 No Continuity
3.0L (1) Fully Open VTA & E2 2000-11,600
3.0L (1) Fully Open VC & E2 2700-7700
(1) Apply vacuum to throttle opener before checking TP sensor.
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