Buick Regal 2018-2026 Service Manual / Accessories and Equipment / Power Seats / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC B1405, B1825, B2355, B2365, or B2375 (Driver Seat)
- DTC B1405, B1825, B2355, B2365, or B2375 (Passenger Seat)
- DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 (Driver Seat)
- DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 (Passenger Seat)
- DTC B183B or B183C
- DTC B2755 or B2765
- DTC B3920
- DTC B392B
- DTC B392C
- Symptoms - Power Seats
- Lumbar/Bolster/Massage Malfunction (AVK without AF6 or AVU without AKE)
- Lumbar/Bolster/Massage Malfunction (AL9 or AT9)
- Memory Seat Feature Malfunction
- Power Folding Seat Malfunction
- Power Seat Malfunction (Driver or Passenger without Memory A44 or A45)
- Power Seat Malfunction (Driver Seat with Memory A45)
- Power Seat Malfunction (Passenger Seat with Memory A44)
READ NEXT:
DTC B1405, B1825, B2355, B2365, or B2375 (Driver Seat)
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.
Diag
DTC B1405, B1825, B2355, B2365, or B2375 (Passenger Seat)
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.
Diag
DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 (Driver Seat)
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.
Diag
SEE MORE:
Power Transfer Unit Case Disassemble
Power Transfer Unit Case Holding Fixture Installation
Power Transfer Unit Case
Procedure
Always secure with the pivot pin after rotating.
NOTE:
The power transfer unit can be rotated 360 degrees to facilitate repair.
Special Tools
DT-3289-20 Holding Fixture
DT-36842 Transaxle Holding
Receiver and Dehydrator Replacement
Preliminary Procedure
1. Recover the refrigerant.
2. Radiator Air Lower Baffle Replacement.
Air Conditioning Receiver and Dehydrator Plug
Air Conditioning Receiver and Dehydrator Plug Retaining Ring
Air Conditioning Receiver and Dehydrator
AIR CONDITIONING EVAPORATOR THERMAL EXPANSION VALVE R
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