Buick Regal 2018-2025 Service Manual / HVAC & Restraints / HVAC - Automatic / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
HVAC COMPONENT REPLACEMENT REFERENCE
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- DTC B0163
- DTC B0163, B0183, or B1405
- DTC B0173, B0178, B0509, B0514 or B3933
- DTC B018A, B048C, B048F, or B1395
- DTC B0183
- DTC B0193
- DTC B0223, B022A, B0233, B023A, B0408, or B0418
- DTC B269A, B269C, or B269D
- DTC B3843
- DTC B393B
- DTC P0532 or P0533
- DTC P0645, P0646, or P0647
- Symptoms - HVAC Systems - Automatic
- Air Conditioning Compressor Malfunction
- Afterblow Enabling
READ NEXT:
DTC B0163
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 B0163, B0183, or B1405
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 B0173, B0178, B0509, B0514 or B3933
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:
Knuckle Replacement (FWD)
Removal Procedure
1. Remove the rear tire and wheel assembly.
2. Rear Brake Caliper Bracket - Remove.
3. Rear Brake Rotor - Remove.
4. Rear Brake Shield - Remove.
5. Rear Wheel Bearing and Hub Assembly - Remove.
6.
Rear Suspension Upper Control Arm Outer Nut(1) - Remove.
7. Rear Suspension Up
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
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