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 select oscilloscope.(2 Channel)
Channel A (+) : CKPS signal terminal (CKPS Harness Connector)
Channel A (-) : Ground
Channel B (+) : CMPS signal terminal (CMPS Harness Connector)
Channel B (-) : Ground
Ignition switch "ON" & Enigne "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. |
When installing component, tighten it within specification.
If component is dropped, check for proper operation. The internal damage may be present.
