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Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Ambient Air Temperature parameter is between -40° C (-40° F) and +88° C (+190° F) and changes with air temperature changes.
    • If not between -40° C (-40° F) and +88° C (+190° F) or changes with air temperature changes 

      Refer to Circuit/System Testing.

    • Go to next step: If between -40° C (-40° F) and +88° C (+190° F) and changes with air temperature changes 
  3. Perform the Instrument Cluster Ambient Air Temperature Instant Update special function with the scan tool
  4. Verify the scan tool Ambient Air Temperature parameter is within five degrees of actual ambient air temperature.
    • If not within five degrees of actual ambient air temperature 

      Refer to Circuit/System Testing.

    • Go to next step: If within five degrees of actual ambient air temperature 
  5. All OK.
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