Component Inspection

Engine Control
P0391 Camshaft Position Sensor - Inspection/Repair:_:Component Inspection

Component Inspection

Check CMPS
1. IG "OFF" and connect GDS.
2. ENG "ON" and Measure signal waveform at signal terminal of CMPS.

Reference signal waveform :




Fig. 1) Normal waveform of CMPS1 & 2 at idle.




3. Is the measured siganl waveform normal ?