1.
Check CKPS
(1)
Key "ON". (Don’t disconnect sensors.)
(2)
Select "vehicle scopemeter" in the menu, and connect channel A of scantool with terminal 1 of CKPS harness connector.
(3)
Engine start. And check the signal waveforms.
a.
Specification :
(4)
Is the measured signal waveform O.K ?
YES
a.
Substitute with a known - good ECM and check for proper operation.
If the problem is corrected, replace ECM and go to "Verification of Vehicle Repair" procedure.
NO
a.
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.
