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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Displays And Gauges) >> Diagnostic Information and Procedures >> Outside Air Temperature Display Malfunction (with LWN/LV1) >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

Static Test

  1. Place the B9 Ambient Air Temperature Sensor in a stable, temperature-controlled area for at least 10 minutes, then measure the resistance between sensor signal terminal A (or 1) and the low reference circuit terminal B (or 2).
  2. Compare the readings with the Ambient Air Temperature Sensor Resistance 
    • If not in the specified range 

      Replace the component: B9 Ambient Air Temperature Sensor

    • Go to next step: If in the specified range 
  3. All OK.
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