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
The vehicle speed sensor circuit is sent to cruise control ecu assy as a vehicle speed signal. For each rotation of the shaft, the vehicle speed sensor sends a signal through the combination meter assembly to the cruise control ecu assy (see the following chart). The cruise control ecu assy ...

Overhaul
Hint: components: 1. Drain manual transaxle oil (m/t transaxle) torque: 39.2 Nvm (400 Kgf·cm, 29 ft·lbf) 2. Drain automatic transaxle fluid (a/t transaxle) torque: 17.5 Nvm (178 Kgf·cm, 13 ft·lbf) 3. Remove front wheel 4. Remove engine under cover lh 5. Remove front axle hub lh nut ...

Replacement
1. Remove combination meter assembly 2. Disconnect brake master cylinder push rod clevis  remove the clip and push rod clevis pin and wave washer, and disconnect the push rod clevis from the brake pedal. 3. Remove brake pedal support sub–assy Remove the bolt from the bra ...