Buick Regal 2018-2025 Service Manual / Steering & Driveline & Axle / Steering Wheel and Column / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
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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:
Symptoms - Mirrors
NOTE: The following steps must be completed before using the symptom
tables.
1. Perform the Diagnostic System Check - Vehicle before using the Symptom
Tables in order to
verify that all of the following are true:
There are no DTCs set.
The control modules can communicate via the serial data lin
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.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
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