Buick Regal 2018-2026 Service Manual / Brakes / Hydraulic Brakes / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC C0126
- DTC C025E
- DTC C0267
- DTC C0299
- DTC P0556, P0557, or P0558
- Symptoms - Hydraulic Brakes
- Brake Pulsation
- Brake System Vehicle Road Test
- Hydraulic Brake Component Operation Visual Inspection
READ NEXT:
DTC C0126
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.
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DTC C025E
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.
Refe
DTC C0267
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.
Refe
SEE MORE:
Description and Operation
ABS DESCRIPTION AND OPERATION
B22 - B22 Brake Pedal Position Sensor
S48E - S48E Multifunction Switch - Center Console
P16 - P16 Instrument Cluster
K9 - K9 Body Control Module
K20 - K20 Engine Control Module
K71 - K71 Transmission Control Module
K17 - K17 Electronic Brake Control Module
Q5 - Q5 Brak
Pressure Cap Testing
Special Tools
GE-42401-A Radiator Cap and Surge Tank Test Adapter
For equivalent regional tools, refer to Special Tools.
WARNING: To avoid being burned, do not remove the radiator cap or surge
tank
cap while the engine is hot. The cooling system will release scalding
fluid and steam under pressure
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