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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Controls And Fuel - 2.0L (LUZ) Diesel - DTC P2122 To DTC P2689 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P227B: Barometric Pressure (BARO) Sensor 2 >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON.
  2. Verify DTC P0641, P0651, P0697, P2228, P2229, P227C or P227D is not set.
    • If none of the DTCs are set 
  3. Verify the scan tool BARO Sensor 2 pressure parameter is within the range specified in the Altitude Versus Barometric Pressure table.
    • If the parameter is not within the specified range 

      Refer to Circuit/System Testing.

    • If the parameter is within the specified range 
  4. Verify the scan tool BARO Sensor 1 and BARO Sensor 2 parameters are within 7.5 kPa (1.1 psi).
    • If not within 7.5 kPa (1.1 psi) 

      Refer to Circuit/System Testing

    • If within 7.5 kPa (1.1 psi) 
  5. 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.
  6. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing

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