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Home >> Cadillac >> 2015 >> SRX Base, 4D Utility >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> DTC B2500: Driver Exterior Unlock Switch >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON
  2. Verify the scan tool Driver Door Key Unlock Switch parameter changes between Inactive and Active when inserting the key into the door lock key cylinder and turning the key to the unlock position.
    • If the parameter does not change 

      Refer to Circuit/System Testing.

    • If the parameter changes 
  3. All OK.