Note. For circuit reference (Схема №5)
Circuit Description
Throttle Position (TP) sensor measures amount of throttle opening. PCM uses TP sensor information for fuel delivery calculations. TP sensor readings during wide open throttle are 4 volts and one volt at idle.
Conditions required to set DTC are
- Ignition is on.
- TP sensor signal voltage is more than 4.78 volts.
Diagnostic Aids
Check for faulty connections or damaged harness. Ensure harness is not routed too close to high voltage wires, such as spark plug cables. If connections and harness appear okay, observe TP SENSOR display on scan tool while moving all related harnesses and connectors. A change in scan tool display may indicate a fault location. Turn ignition on, engine off. Using scan tool to observe TP SENSOR display, slowly depress accelerator to wide open throttle. If TP sensor reading is more than 4.78 volts at any time, replace TP sensor.