Buick Regal 2018-2025 Service Manual / Accessories and Equipment / Cruise Control System / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC B3623, B3794, P0564, P0565, P0567, P0568, P056C, P0580, P0581, P0589, P0592, P0593, P155A-P155C, or P162C
- DTC P0571
- DTC P0572 or P0573
- DTC P0575
- DTC P0703
- DTC P1553
- DTC P158A
- Symptoms - Cruise Control
- Cruise Control Malfunction
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DTC B3623, B3794, P0564, P0565, P0567, P0568, P056C, P0580, P0581, P0589,
P0592, P0593,
P155A-P155C, or P162C
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Diagnostic
System Check - Vehicle
Review the description of Strategy Based Diagnosis: Strate
DTC P0571
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure:Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis:Strategy
DTC P0572 or P0573
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Diagnostic
System Check - Vehicle
Review the description of Strategy Based Diagnosis:Strateg
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Differential Carrier Assembly Replacement
Removal Procedure
1. Raise and support the vehicle.
2. Differential Carrier Assembly - Drain.
3. Exhaust Muffler - Remove.
4. Propeller Shaft - Remove.
5. Parking Brake Actuator - Disconnect.
6. Rear Wheel Drive Shaft - Remove.
7. Disconnect the differential carrier electrical connectors at t
DTC P057B-P057E
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
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