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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Exterior Trim >> Bumpers And Fascias >> Diagnostic Information and Procedures >> Active Grille Air Shutter 1 Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Verify none of the following conditions are present:
    • Snow or ice packed in the front fascia which prevents the louvers from moving.
    • Debris or foreign objects which prevent the louvers from moving.
    • If any of the conditions are present 

      Clear any snow, ice or foreign objects from the front grille.

    • Go to next step: If none of the conditions are present 
  2. Ignition On/Vehicle in Service Mode.
  3. Verify no other DTCs are set, except P059F or P151E.
    • Go to next step: If no other DTCs are set 

      Go to next step: Refer to Circuit/System Testing.

  4. If no DTCs are set a fault is currently not present and there may be an intermittent condition.