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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Driving the vehicle
The following procedures should be observed to ensure safe driving: Driving procedure ■ Driving 1. With the brake pedal depressed, shift the shift lever to D. 2. Release the parking brake. If the parking brake is in automatic mode, the parking brake will be released automatically. 3. Gradually re ...

Inspection procedure
Hint: perform the troubleshooting of dtc p0335 first. If no trouble is found, troubleshoot the engine mechanical systems. Read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When tr ...

Circuit description
The rotary solenoid type idle air control (iac) valve is located under the throttle body and intake air bypassing the throttle valve flows into the iac valve through the passage. In this way the intake air volume bypassing the throttle valve is regulated, controls the engine speed. The ...