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Throttle Position Sensor (TPS)

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

Fig 1: Checking Throttle Position Sensor
G95395Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TPS RESISTANCE SPECIFICATIONS

Clearance In. (mm) Terminal Ohmmeter Reading
0 (0) VTA & E2 300-6300
.030 (.76) IDL & E2 2300 or Less
.043 (1.09) IDL & E2 Infinity
Fully Open VTA & E2 3500-10,300
Fully Open VC & E2 4250-8250