LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 1.0L (L4B L4F L4G LIJ) Or 1.2L (L4H L4K LIF LIH) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P00EA-P00EC >> 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 DTC P0641, P0651, P0697, P06A3 is not set.
    • Go to next step: If none of the DTCs are set 
    3. NOTE:

    To minimize the effects of residual engine heat and heating elements inside the sensor, perform step 3 of this procedure only if the ignition has been Off for longer than 8 h.

  3. Verify the following parameters are within 25°C (45°F) of each other:
    • Start-Up IAT Sensor 1
    • IAT Sensor 2
    • IAT Sensor 3
    • If not within 25°C (45°F) of each other 

      Refer to Circuit/System Testing

    • Go to next step: If within 25°C (45°F) of each other 
  4. Engine Running
  5. Verify the scan tool parameter: - IAT Sensor 3 = -39 to +129°C (-38 to +264°F) and changes - Temperature should change with engine run time.
    • If not between -39 and +129°C (-38 and +264°F) or does not change 

      Refer to Circuit/System Testing

    • Go to next step: If between -39 and +129°C (-38 and +264°F) and changes 
  6. 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 

      Refer to Circuit/System Testing

    • Go to next step: If the DTC does not set 
  7. All OK.
scientia non olet · About LEMON Manuals