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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0315 >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition - On / Vehicle - In Service Mode
  2. Perform the scan tool learn/reset function: Crankshaft Position Variation Learn
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

    Verify the DTC does not set.

    • If the DTC sets 

      Replace the component: K20 Engine Control Module

    • Go to next step: If the DTC is not set 
  4. All OK.
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