Buick Regal: Schematic Wiring Diagrams
HEADLIGHTS/DAYTIME RUNNING LIGHTS (DRL) WIRING SCHEMATICS
Controls and Indicators
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Halogen Lamps and Daytime Running Lamps (T4A)
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Left LED Headlamp Power, Ground and Serial Data (T4L)
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Left LED Low Beam Lamps, Cornering Lamp and Cooling Fan (T4L)
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Left LED High Beam Lamps, and High Beam Spot (T4L)
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Right LED Headlamp Power, Ground and Serial Data (T4L)
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Right LED Low Beam Lamps, Cornering Lamp and Cooling Fan (T4L)
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Right LED High Beam Lamps, and High Beam Spot (T4L)
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Daytime Running Lamps (T4L)
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Automatic Leveling and Adaptive Forward Lighting - Power, Ground, Serial Data and Sensors (T4L)
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Automatic Leveling and Adaptive Forward Lighting - Aiming, Leveling and Beam Control (T4L)
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Manual Leveling (TR6)
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FOG LIGHTS WIRING SCHEMATICS
Front Fog Lamps
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EXTERIOR LIGHTS WIRING SCHEMATICS
Controls and Indicators
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Park Lamps, Tail/Stop Lamps, Tail Lamps, and Side Marker - Left
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Park Lamps, Tail/Stop Lamps, Tail Lamps, and Side Marker - Right
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Turn Signal Lamps - Left Front
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Turn Signal Lamps - Right Front
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Stop/Turn Lamps, Center High Mounted Stop Lamp, and Liftgate Courtesy Lamps
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Backup and License Lamps
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INTERIOR LIGHTS WIRING SCHEMATICS
Controls and Rear Compartment Lamp
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Overhead and Instrument Panel Compartment Lamps
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Accent and Flood Lamps - Doors (C93)
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Accent and Flood Lamps - Instrument Panel and Floor (C93)
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INTERIOR LIGHTS DIMMING WIRING SCHEMATICS
Controls, Instrument Panel and Floor Console Lamps
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Doors and Overhead Lamps
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Indicator Lamps (1 of 2)
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Indicator Lamps (2 of 2)
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SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS
EL-38522
J-38522
Variable Signal Generator
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SPECIFICATIONS
FASTENER SPECIFICATIONS
Reusable Threaded Fastener Tightening Specifications
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Mirrors
SPECIFICATIONS
FASTENER SPECIFICATIONS
Reusable Threaded Fastener Tightening Specifications
NOTE:
All fasteners listed in this table can be reused after removal.
SCHEMATIC WIRING DIAGRAMS
INSIDE REAR
DTC B154A or B154B
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:
Radiator Replacement (3.6L LGX)
Removal Procedure
1. Drain the cooling system.
2. Front Bumper Fascia - Remove.
3.
Hood Primary Latch Mount Panel Bracket (3) - Remove.
4. Recover the refrigerant.
5.
Air Conditioning Condenser Bracket (1) - Remove.
6. Transmission Fluid Cooler Inlet and Outlet Pipe Retainer @ Engine Cooler
DTC P0572 or P0573
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 Based
Diagnosis
An overview of each diagnostic category can be found here: Diagnostic
Procedu
