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Home >> Chevrolet >> 2008 >> Optra LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L (Diesel) >> Diagnostic Information and Procedures >> DTC P0683 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, observe the DTC information with a scan tool. DTCs P0683 3A or P0683 71 should not set.
    • If DTC P0683 3A is set, replace the glow plug control module.
  2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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