Buick Regal 2018-2025 Service Manual / HVAC & Restraints / HVAC - Automatic
Buick Regal: HVAC - Automatic
SPECIFICATIONS
FASTENER TIGHTENING TORQUE SPECIFICATIONS
Reusable Threaded Fastener Tightening Specifications
NOTE: All fasteners listed in this table can be reused after removal.
.png)
SCHEMATIC WIRING DIAGRAMS
HVAC WIRING SCHEMATICS
HVAC Module Power, Ground, Serial Data, and Subsystem References
.png)
HVAC Controls
.png)
A/C Compressor Controls
.png)
Blower Motor
.png)
Mode and Temperature Door Actuators
.png)
Temperature Sensors
.png)
Windshield and Sunload Sensors
.png)
Heater Coolant Pump
.png)
READ NEXT:
Diagnostic Information and Procedures
HVAC COMPONENT REPLACEMENT REFERENCE
DTC B0163
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 B0163, B0183, or B1405
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:
DTC P0856
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 Descriptor
DT
Brake Fluid
The brake master cylinder reservoir
is filled with GM approved DOT 4
brake fluid as indicated on the
reservoir cap.
Checking Brake Fluid
With the vehicle in P (Park) on a
level surface, the brake fluid level
should be between the minimum
and maximum marks on the brake
fluid reservoir.
There are on
© 2019-2025 Copyright www.buregal6.com
