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Home >> Chevrolet >> 2024 >> Blazer EV LT >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Remote Functions >> Diagnostic Information and Procedures >> Key Card System Malfunction >> Circuit/System Verification

Circuit/System Verification

In order to determine the best starting point to begin diagnosis first determine which features on the vehicle are functioning correctly or not. By performing a simple and quick check on the vehicle it can be determined if there is or isn't a fault in the feature.

Key Card Verification

  1. Vehicle OFF, approach the vehicle with one key card at a time. Ensure all other key cards and/or transmitters are at least 15 feet away from the vehicle.
  2. Verify the key card locks and unlocks the driver door when presented to the applique
  3. Verify the key card allows vehicle to cycle power mode on within approximately one minute of tapping the key card on the applique.
    • Go to next step: If the vehicle either does not lock/unlock or does not change power modes 

      Go to next step: This function is Failed.

    • Go to next step: If the vehicle locks, unlocks, and allows vehicle power moding 
  4. All OK. This function Passed.