Electronic Throttle Actuator: Testing and Inspection

Inspection Using An Oscilloscope (Reference)

Throttle control (+) signal




- PCM terminals: 2A (+)-Negative battery terminal (-)
- Oscilloscope setting: 5 V/DIV (Y), 1 minute/DIV (X), DC range
- Vehicle condition: Idle (Accelerator pedal released)

Throttle control (-) signal




- PCM terminals: 2B (+)-Negative battery terminal (-)
- Oscilloscope setting: 5 V/DIV (Y), 1 minute/DIV (X), DC range
- Vehicle condition: Idle (Accelerator pedal released)