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Home >> Cadillac >> 2017 >> Escalade Base, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC B0158: Ambient Air Temperature Sensor Circuit >> Circuit/System Verification

Circuit/System Verification

NOTE:

For vehicles with RPO AVF, ensure that the Body Control Module and Instrument Cluster have been programmed with the latest calibrations before proceeding with Circuit/System Verification and Circuit/System Testing.

  1. Ignition ON.
  2. Verify the scan tool Instrument Cluster 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.

    • If between -40°C (-40°F) and +88°C (+190°F) and changes with air temperature changes 
  3. All OK.
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