Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Throttle/pedal position sensor/switch ”a” circuit

Toyota Corolla (E120): Throttle/pedal position sensor/switch ”a” circuit

Dtc p0120 throttle/pedal position sensor/switch ”a” circuit

Dtc p0122 throttle/pedal position sensor/switch ”a” circuit low input

Dtc p0123 throttle/pedal position sensor/switch ”a” circuit high input

Hint

: this is the purpose for the ”throttle position sensor”.

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Circuit description
The shift solenoid valve sl is turned ”on” and ”off” by signals from the ecm in order to control the hydraulic pressure operation, the lock–up relay valve, which then the controls operation of the lock–up clutch. Fail safe function: if the ecm detects a malfunction, it turns the ...

Warning lights and indicators
The warning lights and indicators on the instrument cluster and center panel inform the driver of the status of the vehicle’s various systems. For the purpose of explanation, the following illustration displays all warning lights and indicators illuminated. ► Vehicles with a drive moni ...

Terminals of ecu
1. Inspect integration relay Disconnect the connector from the integration relay. check the continuity between each terminal of the disconnected connector and the body ground, as shown in the illustration and table. Standard: If the result is not as specified, the vehicle’s ...