Component Inspection

Engine Control

P2127 Accelerator Position Sensor 2 Signal Circuit Low Input - Component Inspection

Component Inspection

Check APS
1. IG "OFF" and install a scantool.
2. Connect probe to APS 1 and APS 2 to check signal waveform by using oscilloscope function.
3. Measure signal waveform of APS by pressing and depressing accelerator pedal.

Specification : Signal waveform will be displayed as follows.








Fig.1) Normal waveform of APS 1 & APS 2 with acceleration




4. Is the measured resistance within specification?