Component Inspection

Component Inspection

Check CKPS
1. IG "OFF" and disconnect CKPS connector.
2. Measure resistance between low signal and high signal terminals of CKPS connector. (Component side)

Specification : 725-925 Ohms (at 20 °C / 68 °F)





3. Is the measured resistance within specification?





Check signal waveform of CKPS
1. IG "OFF" and connect scantool.
2. NG "ON" and Measure signal waveform at signal terminal of CKPS.




Fig.1) Normal waveforms of CKPS & CMPS




3. Is the measured signal waveform normal?






NOTE:
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by ECM.Before or after testing ECM on the vehicle, use this function to reuse the ECM on the others