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Throttle Position Sensor (TPS)

Turn ignition off. Unplug electrical connector at TPS on throttle body. Note terminal identification. See Fig 1. Insert specified thickness feeler gauge between throttle stop screw and throttle lever. See TPS RESISTANCE SPECIFICATIONS  table. Using an ohmmeter, check for resistance or continuity. Replace or adjust TPS if not within specification.

TPS RESISTANCE SPECIFICATIONS

Engine Type Terminal Tested Clearance In. (mm) Ohmmeter Reading
2.4L VTA & E2 0 (0) 200-800
" " Fully Open 3300-10,000
" IDL & E2 .022 (.56) 2300 Or Less
" " .034 (.86) No Continuity
" VCC & E2 " 4000-9000
3.0L VTA & E2 0 (0) 200-800
" " Fully Open 3300-10,000
" IDL & E2 .020 (.51) 2300 Or Less
" " .030 (.76) No Continuity
" VCC & E2 " 4000-9000
Fig 1: Throttle Position Sensor Terminal ID
G118910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002