Throttle Position Sensor

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.
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 (3.0L)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Checking Throttle Position Sensor (2.7L)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TPS RESISTANCE SPECIFICATIONS

Application Type

Clearance In. (mm)

Terminals Tested

Ohmmeter Reading

2.7L ⁽¹⁾

0 (0)

VTA & E2

200-5700

.020 (.51)

IDL & E2

2300 Or Less

.030 (.75)

IDL & E2

No Continuity

Fully Open

VTA & E2

2000-10,200

VC & E2

2500-5900

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.