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Hey Guys,

Maybe someone can help me out here. Been having some issues with my one 2012 Chevrolet Cruze. It is not the turbo model. it is the 1.8L.

Now, the other day the check engine light came one. Scanned the car with an OBD2 scan tool, and was getting the P0315 error code.

Went ahead and tried to do the re-learn. No success.

Put a new crankshaft sensor in, tried ti do the relearn. No success.

Then I took it over to my mechanic friend with a 2,000 dollar scanner, and he said it was the camshaft. Replaced the camshaft sensor. Tried again. No success.

Anyone have any other suggestions?

Thanks,





This is the right Relearn Correct?

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"Throttle/Idle Learn


The Idle Learn Procedure listed below must be performed whenever the following occurs:

The crankshaft position variation learn procedure is also required when the following service procedures have been performed, regardless of whether or not DTC P0315 is set:




  • The throttle body assembly is replaced
  • The throttle body is cleaned
  • The engine control module (ECM) is replaced
  • The idle air control valve is replaced
  • Power disconnection (battery cable, ECM fuse, etc.) (Delphi ECM only)


  1. Turn the ignition ON.
  2. Turn the ignition OFF for 15 s.
  3. Turn the ignition ON for 5 s.
  4. Turn the ignition OFF for 15 s.
  5. Start the engine in park/neutral.
  6. Allow the engine to run until the engine coolant temperature is greater than 85°C (185°F).
  7. Turn the A/C ON for 10 s, if equipped.
  8. If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in drive for 10 s.
  9. Turn the A/C OFF for 10 s, if equipped.
  10. If the vehicle is equipped with an automatic transaxle, while pressing the brake pedal, place the transaxle in park/neutral.
  11. Turn the ignition OFF. The idle learn procedure is complete."
 
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