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Throttle Position Sensor

  1. Turn ignition off. Disconnect electrical connector from Throttle Position Sensor (TPS) on throttle body. Note terminal identification. See Fig 1 and Fig 2.
    NOTE: Some models require that vacuum be applied to throttle opener before checking TPS. See TPS RESISTANCE SPECIFICATIONS  table.
  2. Insert specified thickness feeler gauge between throttle stop screw and throttle lever and check resistance or continuity. See TPS RESISTANCE SPECIFICATIONS  table. Replace or adjust TPS if not within specification.
Fig 1: Checking Throttle Position Sensor (2.4L)
G93C79634Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Checking Throttle Position Sensor (3.0L)
G94E45942Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TPS RESISTANCE SPECIFICATIONS

Application Type Clearance In. (mm) Terminals Tested Ohmmeter Reading
2.4L 0 (0) VTA & E2 470-6100
" .022 (.56) IDL & E2 2300 Or Less
" .034 (.86) IDL & E2 No Continuity
" Fully Open VTA & E2 3100-12,100
" " VCC & E2 3900-9000
3.0L (1) 0 (0) VTA & E2 470-6100
" .020 (.51) IDL & E2 2300 Or Less
" .031 (.79) IDL & E2 No Continuity
" Fully Open VTA & E2 3100-12,100
" " VC & E2 3900-9000
(1) Apply vacuum to throttle opener before checking TPS.
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