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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Circuit description
Refer to dtc p0130 Dtc no. Dtc detecting condition Trouble area P0134 After engine is warmed up, heated oxygen sensor (bank 1 sensor 1) output does not indicate rich (greater than 0.45 V) even once when conditions (a), (b), (c), (d) and (e) continue for ...

Road test
1. Problem symptom confirmation Taking into consideration the results of the customer problem analysis, try to reproduce the symptoms of the trouble. If the problem is that the transaxle does not shift up, shift down, or the shift point is too high or too low conduct the following road ...

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 ...