Important: While the learn procedure is in progress, release the throttle immediately
when the engine starts to decelerate. The engine control is returned to the
operator and the engine responds to throttle position after the learn procedure
is complete.
- Connect the scan tool.
- Apply the vehicles parking brake.
- Block the drive wheels.
- Close the vehicles hood.
- Place the vehicles transmission in Park (A/T) or Neutral (M/T).
- Idle the engine until the engine coolant temperature (ECT) reaches
65°C (150°F).
- Turn OFF all the accessories.
- Apply the brakes for the duration of the procedure.
Important: If the crankshaft position (CKP) system variation learn procedure cannot
be completed successfully, refer to
DTC P1336
for additional diagnostic information.
- Use the scan tool in order to enable the CKP system variation learn
procedure.
- Slowly accelerate the engine speed to 4,000 RPM.
- Immediately release the throttle when the engine speed decreases.
- Turn OFF the ignition for 15 seconds after the learn procedure
is completed successfully.