Check CKPS
Key "ON". (Don’t disconnect sensors.)
Select "vehicle scopemeter" in the menu, and connect channel A of scantool with terminal 1 of CKPS harness connector.
Engine start. And check the signal waveforms.
Specification :
Is the measured signal waveform O.K ?
YES
Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage. So, check poor connections and the related circuit between ECM and component thoroughly. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
Substitute with a known - good CKPS and check for proper operation.
If the problem is corrected, replace CKPS and go to "Verification of Vehicle Repair" procedure.
