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Home >> Buick >> 2012 >> Regal Base >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> DTC B251A-B251F >> Circuit/System Verification

Circuit/System Verification

  1. Ignition OFF, with the doors closed and locked, approach the vehicle with the keyless entry transmitter and pull the exterior driver door handle. The driver door should unlock and unlatch allowing the driver door to be pulled open.
    • If the driver door will not unlock and open with a single pull of the exterior door handle, refer to Driver Door Latch Malfunction in Circuit/System Testing .
  2. With the doors closed and locked, approach the vehicle with the keyless entry transmitter and pull the exterior passenger door handle or the exterior left rear door handle or the exterior right rear door handle. The appropriate door should unlock and unlatch allowing the door to be pulled open.
    • If all the passenger, left rear and right rear doors will not unlock and open with a single pull of the exterior door handle, refer to Passenger and Rear Door Release Command Inoperative in Circuit/System Testing .
    • If a door will not unlock and open with a single pull of the door handle, refer to Passenger or Rear Door Latch Malfunction in Circuit/System Testing .