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

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

Dtc p0121 throttle/pedal position sensor/switch ”a” circuit range/performance problem

Hint

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

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Overhaul
Caution: wear the gloves, because the cutting surface of the seat back frame and seat adjuster may injure your hand. Hint: tape the screwdriver tip before use when prying parts. 1. Disconnect battery negative terminal Caution: wait for 90 seconds after disconnecting the battery terminal a ...

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 ...

Problem symptoms table
Hint: if a normal code is displayed during the dtc check but the trouble still occurs, check the circuits for each symptom in the order given in the charts on the following pages and proceed to the page given for troubleshooting. The matrix chart is divided into 3 chapters. If the instruc ...