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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Engine Controls And Fuel - 1.8L (LKN) - DTC P0010 To P0459) >> Diagnostic Information and Procedures >> DTC P0403, P0489 or P0490: Exhaust Gas Recirculation (EGR) Control Circuit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON/Vehicle in Service Mode.
  2. Verify the scan tool parameters listed below display OK:
    • EGR Control Circuit Low Voltage Test Status
    • EGR Control Circuit Open Voltage Test Status
    • EGR Control Circuit High Voltage Test Status
    • If not OK 

      Refer to Circuit/System Testing.

    • If OK 
  3. Operate the vehicle within the Conditions for Running the DTCs. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  4. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing

    • If the DTC does not set 
  5. All OK.
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