Component Inspection

Engine Control

P0391 Camshaft Position Sensor 'B' Circuit Range/Performance (Bank 2) - 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 CMPS 1 & 2 at idle.




3. Is the measured signal waveform normal?