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Home >> Chevrolet >> 2016 >> Suburban 3500 HD LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC B1024: Circuit Board Temperature Sensor Above Maximum Threshold (Human Machine Interface Control Module) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Yukon XL, 2015 GMC Yukon, 2015 Chevrolet Tahoe, 2015 Chevrolet Suburban, and 2015 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Allow the vehicle cabin to cool if the temperature inside the vehicle is excessive before proceeding with this diagnostic procedure.

  1. Verify the DTC sets outside of the Conditions for Running and Setting. Since most occurrences of this DTC are caused by extreme vehicle cabin temperatures due to ambient conditions, review with the customer the conditions under which the DTC set.
    • If the DTC sets within the Conditions for Running and Setting. 

      The system is operating as designed, All OK.

    • If the DTC sets outside the Conditions for Running and Setting. 
  2. Using the scan tool, clear the DTC.
  3. Verify the DTC does not set while operating the infotainment system under the conditions the customer experienced the concern.
    • If the DTC sets 

      Replace the K74 Human Machine Interface Control Module

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