COOLING FAN
3.1L
3.1L (VIN T), Cooling Fan Wiring Diagram, Early Production for Buick Regal Custom 1991
3.1L (VIN T), Cooling Fan Wiring Diagram, Late Production for Buick Regal Custom 1991
3.8L
3.8L (VIN L), Cooling Fan Wiring Diagram for Buick Regal Custom 1991
DEFOGGERS
Defogger Wiring Diagram for Buick Regal Custom 1991
HORN
Horn Wiring Diagram, 2 Door for Buick Regal Custom 1991
Horn Wiring Diagram, 4 Door for Buick Regal Custom 1991
POWER ANTENNA
Power Antenna Wiring Diagram for Buick Regal Custom 1991
POWER DOOR LOCKS
Door Lock Wiring Diagram, with Keyless Entry for Buick Regal Custom 1991
Door Lock Wiring Diagram, without Keyless Entry for Buick Regal Custom 1991
POWER MIRRORS
Power Mirror Wiring Diagram for Buick Regal Custom 1991
POWER SEATS
6-Way Power Seat Wiring Diagram for Buick Regal Custom 1991
POWER WINDOWS
Power Window Wiring Diagram, Coupe for Buick Regal Custom 1991
Power Window Wiring Diagram, Sedan for Buick Regal Custom 1991
RADIO
Radio Wiring Diagrams, UM6, UX1 or U1C for Buick Regal Custom 1991
Radio Wiring Diagrams, UM7 for Buick Regal Custom 1991
STARTING/CHARGING
Charging Wiring Diagram for Buick Regal Custom 1991
Starting Wiring Diagram for Buick Regal Custom 1991
TRUNK, TAILGATE, FUEL DOOR
Trunk Release Wiring Diagram for Buick Regal Custom 1991
WIPER/WASHER
2-Speed Wiper/Washer Wiring Diagram for Buick Regal Custom 1991
Interval Wiper/Washer Wiring Diagram for Buick Regal Custom 1991