Buick Regal 2018-2024 Service Manual / Steering & Driveline & Axle / Steering Wheel and Column / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
READ NEXT:
Symptoms - Steering Wheel and Column
NOTE: Review the system operation in order to familiarize yourself with
the system
functions.
Refer to Steering Wheel and Column Description and Operation.
Symptoms List
Refer to a symptom diagnostic
Heated Steering Wheel Malfunction
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
SEE MORE:
Cylinder Leakage Test
Special Tools
EN 35667-A Cylinder Head Leakdown Tester
For equivalent regional tools, refer to Special Tools.
NOTE: A leakage test may be performed in order to measure
cylinder/combustion chamber
leakage. High leakage may indicate one or more of the following:
Worn or burnt valves
Broken valve s
DTC P0645, P0646, or P0647
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
© 2019-2024 Copyright www.buregal6.com
