All Wiring Diagrams for Buick Century Custom 1990

COOLING FAN

2.5L

2.5L (VIN R), Cooling Fan Wiring Diagram for Buick Century Custom 1990

List of elements for 2.5L (VIN R), Cooling Fan Wiring Diagram for Buick Century Custom 1990:

• (top left front of engine) engine coolant temperature sensor
• A/c on in
• Air conditioning
• C-fan enable
• Coolant fan motor
• Coolant fan relay (right front of engine compt)
• Coolant fan relay control
• Coolant temp in
• Data link connector
• Diagnostic test
• Engine control module (right side of i/p)
• Fan/elect fuse 10a
• Fuse block (right side of i/p)
• Fusible link a (16-ga)
• G114 (left rear of engine)
• Hot at all times
• Hot in run
• Red
• Rust
• Sensor ground
• System
• Vehicle speed sensor
• Vss gnd
• Vss in

3.3L

3.3L (VIN N), Cooling Fan Wiring Diagram for Buick Century Custom 1990

List of elements for 3.3L (VIN N), Cooling Fan Wiring Diagram for Buick Century Custom 1990:

• (top left side of engine) engine coolant temperature sensor
• A/c on in
• Air conditioning
• B10
• Coolant fan motor
• Coolant fan relay (right front of engine compt)
• Coolant fan relay control
• Coolant temp in
• Data link connector
• Diagnostic test
• E12
• E16
• Engine control module (right side of i/p)
• Fan/elect fuse 10a
• Fuse block (right side of i/p)
• Fusible link a (16ga)
• G117 (right rear of engine)
• Hot at all times
• Hot in run
• Red
• Rust
• Sensor ground
• System
• Vehicle speed sensor
• Vss gnd
• Vss in

DEFOGGERS

Defogger Wiring Diagram for Buick Century Custom 1990

List of elements for Defogger Wiring Diagram for Buick Century Custom 1990:

• (buick)
• (buick) (olds)
• (olds)
• (olds) (buick)
• (right "c" pillar)
• C d
• Coupe & sedan
• Defogger
• Defogger control
• E d
• E f
• Fuse block (right side of i/p)
• G205 (right of steering column)
• G206 (behind center of i/p)
• G905
• Gages fuse 10a
• Hot at all times
• Hot in run or start
• Hot w/ light switch in park or head
• Inst lp fuse 5a
• Nca
• Off
• On indicator
• Panel light
• Pwr acc circuit breaker 30a
• Timer
• Wagon

HORN

Horn Wiring Diagram for Buick Century Custom 1990

List of elements for Horn Wiring Diagram for Buick Century Custom 1990:

• (1989-90) (1991)
• (1991) (1989-90)
• Auto alarm module
• B m
• Convenience center (behind right side of i/p)
• Ctsy fuse 20a
• Fuse block (right side of i/p)
• G108 (left front of engine compt on radiator support)
• G109 (right front of engine compt on radiator support)
• Horn relay
• Horn switch
• Hot at all times
• L a
• Left horn (front lower left side of engine compt)
• Right horn (front lower right side of engine compt)
• Slip ring

POWER ANTENNA

Power Antenna Wiring Diagram for Buick Century Custom 1990

List of elements for Power Antenna Wiring Diagram for Buick Century Custom 1990:

• (1990-92)
• (1993)
• (1993) (1990-92)
• 10a
• 1995 vftc c
• 20a
• Antenna coax lead
• Antenna mast
• Antenna motor
• Antenna relay (behind i/p, right of i/p compartment)
• C1 e
• C2 c8
• Circuit breaker
• Ctsy fuse
• Down switch
• Fuse block (behind right side of i/p)
• G206 (behind i/p, below ashtray)
• Hot at all times
• Hot in acc or run
• Nca
• Off
• Pnk
• Radio
• Radio fuse
• Solid state
• Up switch

POWER DOOR LOCKS

Power Door Locks Wiring Diagram for Buick Century Custom 1990

List of elements for Power Door Locks Wiring Diagram for Buick Century Custom 1990:

• 4 door only
• Ctsy fuse 20a
• Door lock relay assembly (lower right side of dash)
• Fuse block (behind right side of i/p, except 1990 celebrity) (behind center of i/p, 1990 celebrity)
• G201 (lower right end of dash)
• Hot at all times
• Left door lock switch
• Left front door lock motor
• Left rear door lock motor
• Lock
• Lock relay
• Pwr acc circuit breaker 30a
• Right door lock switch
• Right front door lock motor
• Right rear door lock motor
• Tan
• Unlock
• Unlock relay

POWER MIRRORS

Power Mirror Wiring Diagram for Buick Century Custom 1990

List of elements for Power Mirror Wiring Diagram for Buick Century Custom 1990:

• (right kick panel)
• A nca
• Ctsy fuse 20a
• Down
• Fuse block
• G203
• Hot at all times
• Left
• Left door mirror switch
• Left outside mirror
• Left/ right mirror motor
• Mirror position switch
• Mirror select switch
• Nca
• Nca b
• Nca d
• Nca h
• Right
• Right outside mirror
• Up/down m mirror motor

POWER SEATS

6-Way Power Seat Wiring Diagram for Buick Century Custom 1990

List of elements for 6-Way Power Seat Wiring Diagram for Buick Century Custom 1990:

• 1995 vftc c
• Back
• Breaker 30a
• Down
• Entire seat
• Forward/ back motor
• Front height
• Front height motor
• Front seat)
• Fuse block
• Fwd
• G300 (below left
• Hot at all times
• Left front seat
• Power seat switch
• Pwr/acc circuit
• Rear height
• Rear height motor
• Tan

Recliner Wiring Diagram for Buick Century Custom 1990

List of elements for Recliner Wiring Diagram for Buick Century Custom 1990:

• 30a
• Fuse block
• Fwd
• G300 (below left front seat)
• Hot at all times
• Left front seat
• Left recliner switch
• Left seat recliner motor
• Power acc circuit breaker
• Recline
• Red
• Right front seat
• Right recliner switch
• Right seat recliner motor

POWER WINDOWS

Power Window Wiring Diagram, 2 Door for Buick Century Custom 1990

List of elements for Power Window Wiring Diagram, 2 Door for Buick Century Custom 1990:

• (at right shroud, near center access hole) g203
• Fuse block
• Hot in run
• Left window motor
• Master switch assembly
• Pnk
• Pnk f
• Right front window switch
• Right window motor
• Tan
• Wdo circuit breaker 30a

Power Window Wiring Diagram, 4 Door for Buick Century Custom 1990

List of elements for Power Window Wiring Diagram, 4 Door for Buick Century Custom 1990:

• C c1
• F c2
• Fuse block
• G203 (at right shroud, near center access hole)
• Hot in run
• Left front window
• Left front window motor
• Left rear window
• Left rear window motor
• Left rear window switch
• Master switch assembly
• Pnk
• Right front window
• Right front window motor
• Right front window switch
• Right rear window
• Right rear window motor
• Right rear window switch
• Tan
• Wdo circuit breaker 30a

RADIO

Radio Wiring Diagrams for Buick Century Custom 1990

List of elements for Radio Wiring Diagrams for Buick Century Custom 1990:

• Antenna
• Antenna input
• Antenna relay
• Battery power
• C233
• C4 (1988) (1989-90)
• Coaxial cable
• Ctsy fuse 20a
• Dim signal
• Fuse block (behind right side of i/p)
• G206 (behind i/p, below ashtray)
• Ground
• Hot at all times
• Hot in acc or run
• Ignition power
• Interior lights system
• Left front speaker
• Left rear speaker
• Lt frt spkr (+)
• Lt frt spkr (-)
• Lt rear spkr (+)
• Lt rear spkr (-)
• On output
• Panel light
• Pnk
• Radio
• Radio fuse 10a
• Right front speaker
• Right rear speaker
• Rt frt spkr (+)
• Rt frt spkr (-)
• Rt rear spkr (+)
• Rt rear spkr (-)
• Tan

STARTING/CHARGING

Charging Wiring Diagram for Buick Century Custom 1990

List of elements for Charging Wiring Diagram for Buick Century Custom 1990:

• (behind right side of i/p, left of i/p com- part- ment)
• (buick vin r), olds (buick vin t)
• (lower left front of engine, on transaxle stud) g110 g114 (left rear of engine)
• (olds)
• Alternator
• Bat
• Battery
• Bulb test or start
• Charge indicator
• Fan/elec fuse 10a
• Fuse block
• G108 (left front of engine compart- ment, radiator support)
• Gages fuse 10a
• Hot in run
• Hot in run,
• Instrument cluster
• Red

Starting Wiring Diagram for Buick Century Custom 1990

List of elements for Starting Wiring Diagram for Buick Century Custom 1990:

• (1990) a
• (1991-93)
• (buick & olds)
• (buick & oldsmobile) (pont & chev vin r)
• (left front of engine compartment, radiator support)
• (left rear of engine)
• (pont &
• Accy
• Battery
• Bulb test
• C2 (1990)
• C206
• C206 (1991-93)
• Chev vin t)
• D2 d
• Fusible link c
• G108
• G110 (lower left front of engine, on transaxle stud)
• G114
• Ignition switch
• Lock
• Off
• Park/ neutral position switch
• Red
• Run
• Start
• Starter motor
• Starter solenoid (lower front of engine)

TRUNK, TAILGATE, FUEL DOOR

Trunk, Tailgate, Fuel Door Wiring Diagrams for Buick Century Custom 1990

List of elements for Trunk, Tailgate, Fuel Door Wiring Diagrams for Buick Century Custom 1990:

• (coupe/ sedan)
• (station wagon)
• 1995 vftc c
• Fuse block (right side of i/p)
• G202 (behind i/p, below ashtray)
• Hot in run
• Hot in run, bulb test or start
• Nca
• Pnk
• Rear wiper control switch
• Release switch
• Release relay (right side of i/p, above fuse block)
• Release solenoid (on luggage compartment lid, near lock)
• Transaxle position switch (top left rear of transaxle)
• Turn flasher
• Turn-b/u fuse 15a
• Wdo circuit breaker 30a

WIPER/WASHER

2-Speed Wiper/Washer Wiring Diagram for Buick Century Custom 1990

List of elements for 2-Speed Wiper/Washer Wiring Diagram for Buick Century Custom 1990:

• (left rear of engine) g114
• (vin r)
• (vin w, vin t)
• Fuse block
• G110 (left front of engine)
• G112 (vin r) (left side of eng)
• G117 (vin n) (right rear of eng)
• Hot in accy or run
• Mechanical arm
• Mist
• Off
• Olds, buick
• Park switch
• Pnk
• Pnk f
• Pont, chevy
• Red
• Washer motor
• Washer switch
• Wiper motor module
• Wiper switch
• Wiper/ washer switch
• Wpr fuse 25a

Interval Wiper/Washer Wiring Diagram for Buick Century Custom 1990

List of elements for Interval Wiper/Washer Wiring Diagram for Buick Century Custom 1990:

• (vin n)
• (vin r)
• (vin w, vin t)
• Control board
• Fuse block
• G110 (left front of engine)
• G112 (left side of eng)
• G114 (left rear of engine)
• G117 (right rear of eng)
• Hot in accy or run
• Mechanical arm
• Mist
• Off
• Olds, buick
• Park relay
• Pnk
• Pont, chevy
• Pulse
• Pulse delay
• Red
• Timer
• Washer motor
• Washer switch
• Wiper motor module
• Wiper switch
• Wiper/ washer switch
• Wpr fuse 25a

Rear Wiper/Washer Wiring Diagram for Buick Century Custom 1990

List of elements for Rear Wiper/Washer Wiring Diagram for Buick Century Custom 1990:

• (pont) (chevy) (buick)
• (pont) (chevy, buick)
• Auto- park module
• B c
• Fuse block
• G109 (on radiator support, behind right headlights)
• G412 (top of tailgate, near rear wiper module)
• Hot at all times
• Hot in run
• Off
• Park
• Pnk
• Pwr acc circuit breaker 30a
• Rear washer pump
• Rear wiper module
• Rear wiper motor
• Rear wiper/ washer switch
• Run
• Tailgate lock switch (in lower center of tailgate)
• W b a
• Wash
• Wdo circuit breaker 30a
• Wipe