Buick Regal 2018-2025 Service Manual / Steering & Driveline & Axle / Rear Drive Axle / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC C0393
- DTC C0407
- DTC C1230 or C1231
- DTC C1244, C1245, or C124B
- DTC C1282
- DTC C12A1 or C12A9
- Symptoms - Rear Differential Carrier
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DTC C0393
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 C0407
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 C1230 or C1231
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:
Forward Range Radar Module Inspection
Inspection Procedure
1.
CONTROL MODULE DTC CHECK - Using a scan tool, perform the Vehicle DTC
Information function - Verify there are no current control module DTCs set. If
any DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle.
2. Check the alignment of the forward range radar mod
Dome Lamps Malfunction
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.
Diagnostic Fault
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