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
Refer to dtc c0200/31, c0205/32, c1235/35, c1236/36 Hint: Dtc no. C0210/33, c1238/38 is for the right rear speed sensor. Dtc no. C0215/34, c1239/39 is for the left rear speed sensor. Wiring diagram ...

Inspection procedure
Hint: 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 troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

Circuit description
A thermistor is built in the engine coolant temperature sensor and changes the resistance value according to the engine coolant temperature. The structure of the sensor and connection to the ecm is the same as those of the intake air temperature sensor. Hint: if the ecm detects the dtc ...