Component Inspection
P0315 Crankshaft Position System Variation Not Learned
Inspection/Repair - Component Inspection
Component Inspection
1. Set up an oscilloscope as follows :
Channel A (+) : terminal 2 of the CKPS (back probe), (-) : ground
Channel B (+) : terminal 2 of the CMPS (back probe), (-) : ground
2. Start the engine and check for signal waveform compared with reference waveform as below.
Fig 1,2) The CMPS falling (rising) edge is coincided with 3 - 5 tooth of the CKP from one longer signal (missing tooth)
3. Is the signal waveform normal?