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Home >> Chevrolet >> 2021 >> Trailblazer L >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gauges >> Diagnostic Information and Procedures >> DTC B135D >> Circuit/System Verification

Circuit/System Verification

    NOTE:

    Remove items from dash that may cover the Ambient Light Sensor

  1. Ignition ON.
  2. Verify there are no other DTCs set in the K172 Night Vision Control Module.
    • Go to next step: If no other DTCs are set 
  3. Refer to Circuit/System Testing.
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