Ignition "OFF" & Engine "OFF".

Remove CMPS.

Visually check that Dowel Pin is O.K through the installation hole for CMPS.

Is the Phase on the camshaft O.K ?

YES

▶ Go to "Check CMPS" as below.

NO

▶ Check Dowel Pin on Camshaft for deterioration or damage.

Replace Camshaft as necessary and go to "Verification of Vehicle Repair" procedure.

Ignition "OFF" & Engine "OFF".

Remove CMPS and then connect CMPS connector to CMPS.

Ignition "ON" & Engine "OFF".

Move a metal on the detecting edge of CMPS with monitoring signal waveform.

Is the signal waveform displayed ?

YES

▶ Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and then go to "Verification of Vehicle Repair" procedure.

NO

▶ Substitute with a known-good CMPS and check for proper operation. If the problem is corrected, replace CMPS and then go to "Verification of Vehicle Repair" procedure.