L200 L4-2.2L VIN F (2002)
Crankshaft Position Sensor: Service and Repair
CKP System Variation Learn Procedure
CRANKSHAFT POSITION VARIATION LEARN PROCEDURE (STEPS 1-3)
1. Start engine and allow ECT to reach at least 70°C (158°F).
2. Turn A/C Off and place transaxle in Park or Neutral.
3. Using Scan tool, perform CRANKSHAFT POS. VARIATION LEARN procedure.
CRANKSHAFT POSITION VARIATION PROCEDURE EXPLAINED
When the procedure is initiated, the Scan tool will send a message to the PCM to enable crank learn.
IMPORTANT: The PCM will only learn the crankshaft when the procedure is performed with a Scan tool.
When the engine coolant temperature is above 70°C (158°F) with the A/C request Off and the transaxle in Park or Neutral, the PCM will be ready to
learn the crankshaft notch variation. The accelerator will now have to be manually depressed to wide-open throttle and released. The PCM will cut
fuel off above 4000 RPM and will allow the engine to decelerate. The PCM will learn the crankshaft as the engine decelerates.
Excessive Crankshaft Variation Symptom
If the PCM will not learn the crankshaft, the diagnostic aids given in the table may help to complete the learn procedure
