Buick Regal Owners & Service Manuals
Buick Regal 2018-2026 Service Manual / Engine / Engine Controls and Fuel - 2.0L (LTG)

Buick Regal: Engine Controls and Fuel - 2.0L (LTG)

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 Description and Operation

 Camshaft Actuator System Description

Circuit/System Description The camshaft position actuator solenoid valve - Intake and camshaft position actuator solenoid valve - exhaust system enables the engine control module (ECM) to change cams

 Engine Control Module Description

The Engine Control Module (ECM) interacts with many emission related components and systems, and monitors emission related components and systems for deterioration. OBD II diagnostics monitor the sy

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 Exterior Lamp Controls

The exterior lamp control is on the instrument panel to the left of the steering column. There are four positions. : Turns the exterior lamps off and deactivates the AUTO mode. Turn to again to reactivate the AUTO mode. In Canada, the headlamps will automatically reactivate when the vehicle is

 DTC B1271

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. Refer to Diagnostic Procedure Instructions provide an overview of each diagnostic category. DTC Descr

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