4.
Inspection condition : Engine idle
Specification : Refer to figure below
Fig.1) CKPS & CMPS signal waveform under engine idle. ECM determines injection sequence and cylinder based on CKPS and CMPS signals.
Ignition switch "OFF"
Connect VMI to GDS and set up the Oscilloscope.(4 Channel):
Channel A (+) : Pin No. 3 (CKPS Signal Plus) terminal (CKPS Harness Connector)
Channel A (-) : Pin No. 2 (CKPS Signal Minus) terminal (CKPS Harness Connector)
Channel B (+) : Pin No. 2 (CMPS Signal) terminal (CMPS Harness Connector)
Channel B (-) : Not used
Ignition switch "ON" % Engine "ON"
Inspection condition : Engine idle
Specification : Refer to figure below
Fig.1) CKPS & CMPS signal waveform under engine idle. ECM determines injection sequence and cylinder based on CKPS and CMPS signals.
Is the measured value within specification?
 | ▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Refer to "Shop Manual" and inspect the flywheel. ▶ If no problem is found on flywheel, replace the CKPS and then go to "Verification of Vehicle Repair" procedure. |
Insert the sensor in the installation hole and be careful not to damage when installation.
Be careful not to damage the sensor housing and the connector.
