Throttle Position Sensor

Disconnect electrical connector from Throttle Position Sensor (TPS). Loosen TPS mounting screws. Connect ohmmeter between terminals IDL and E2. See Fig 1.
Apply vacuum to throttle opener (if equipped). To set initial clearance, insert proper thickness feeler gauge between throttle stop screw and throttle lever. See appropriate THROTTLE POSITION SENSOR ADJUSTMENT table.
With ohmmeter showing no continuity, rotate TPS clockwise until continuity exists. Tighten TPS mounting screws. Using specified feeler gauge, recheck adjusted clearance. Disconnect ohmmeter. Install electrical connector on TPS.

THROTTLE POSITION SENSOR ADJUSTMENT

Application/ Model

Initial Clearance In. (mm)

Adjusted Clearance In. (mm)

Ohmmeter Reading

Corolla ⁽¹⁾

.028 (.71)

.016 (.41)

Continuity

.035 (.89)

No Continuity

⁽¹⁾	On California models, apply vacuum to throttle opener before checking TPS adjustment.

Fig 1: Adjusting Throttle Position Sensor