Component Inspection
Component Inspection
1. CMPS, CKPS Inspection
(1) IG "OFF" and connect scantool.
(2) ENG "ON" and Measure signal waveform at terminal 3 of CMPS.
(3) Measure signal waveform at terminal 1 or 2 of CKPS.
A. Specification:
(4) Is the measured signal waveform O.K ?
YES
1) Substitute with a known-good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.
CAUTION:
- There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM.
- Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others
NO
1) Go to "Timing Mark Inspection" procedure as follow.
2. Timing Mark Inspection
(1) IG "OFF" and check the timing mark is correctly aligned.
A. Reference :
(2) Is the timing mark correctly aligned ?
YES
1) Substitute with a known-good CVVT and check for proper operation. If the problem is corrected, replace CVVT and go to "Verification of Vehicle Repair" procedure.
NO
1) Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.