IG "OFF".
Select "Oscilloscope" in the menu.
Connect Channel A positive probe to Pin No.2 (Signal) and Channel A negative probe to Pin No.1 (Ground) on the CKPS connector.
Connect Channel B to Pin No.2(Signal) terminal of CMPS-IN harness connector and chassis ground.
Engine start. And check the signal waveforms.
Specification : CKPS & CMPS(Intake side) synchronization - There are about 4~5 teeth between the CKPS missing tooth and CMPS signal
Fig.1) Normal Waveforms of OCV-in & CKPS, CMPS(IN) at Engine idle.
A: CKPS & CMPS(Intake side) syncronization - There are about 4~5 teeth between the CKPS missing tooth and CMPS signal.
Does the CKPS & CMPS(Intake side) synchronize properly? (Check variation)
![]() | ▶ Go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ If no problems were found with the circuits or connectors, Replace the CMPS-IN. |