St and nd Design OnOff Throttle Position Sensor Terminal Identification


Idle Switch

Digital signal representing closed throttle status


Power Switch

Digital signal representing near wide open throttle demand

TL 1st design

Throttle Position

Power supply for throttle position sensor (from ECU)

E2 2nd design

Earth Ground

Sensor ground return path


-Throttle Angle -

70° Opening (In Degrees)

Throttle Valve



On '83 and '84 Cressidas/Supras and '83 through '86 Camrys equipped with an Electronically Controlled Transmission (ECT), a modified sensor, which incorporates three additional signal wires designated L1, L2, and L3, is used. These signals represent throttle opening angles in between the 1.5' IDL and 70' PSW signals. The L1, L2, and L3 signals are used by the ECT system and are generated in a similar manner as the IDL and PSW signals on the 2nd design sensor. The TCCS ECU only uses the IDL and PSW signals from this sensor.

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Throttle Valve Angle --

Throttle Valve Angle --

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