Buick Regal: Diagnostic Information and Procedures

 Air Conditioning Evaporator Tube Replacement (LTG)

Removal Procedure 1. Recover the refrigerant. 2. Air Cleaner Assembly(1) - Remove. 3. Front Compartment Air Deflector - Remove. 4. Front Wheelhouse Liner-Right Side - Remove. 5. Front Bumper Fascia - Remove. 6. Engine Mount-Right Side(3) - Remove. 7. Air Conditioning Compressor and Condense

 DTC B256C or B256D

Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors D