All Wiring Diagrams for Buick Century Custom 2000

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Buick Century Custom 2000

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Buick Century Custom 2000:

• (dash harn, 18 cm from radio breakout) s230
• (dash harn, 4 cm from breakout to radio)
• (dash harn, 4 cm from radio breakout)
• (on right side of of hvac module) vacuum/ electric solenoid
• (right side of dash) g201
• +5 v
• A/c sol ctrl
• A/c solenoid
• Ambient air temperature gauge sensor (behind front facia, mounted to radiator air baffle)
• Battery
• Bi-lev sol ctrl
• Bi-level solenoid
• Blower motor (in heater- a/c module)
• Blower motor control module (right side of heater-a/c module)
• Blower speed ctrl
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• Cntrl in
• D10
• D11
• D12
• D13
• D14
• D15
• D16
• Data link connector (under left side of dash, right of steering column)
• Def sol ctrl
• Defrost solenoid
• Fuse block (behind right side of dash)
• Grd
• Ground
• Heater solenoid
• High blower fuse 25a
• Hot at all times
• Hot in run
• Htr sol ctrl
• Hvac control module
• Hvac fuse 10a
• Ignition
• Inside air temperature sensor (below right side of instrument cluster)
• Inside temp input
• Left air temperature actuator (left side of hvac module)
• Lt elec actuator
• Motor drive
• Nca
• Outside temp input
• Radio-hvac rfa-cluster cel tel fuse 15a
• Rear defog enable
• Rear defogger system
• Recirc sol ctrl
• Recirc solenoid
• Red
• Right air temperature actuator (right side of hvac module)
• Rt elec actuator
• S202 (dash harn, right of steering column)
• S231 (dash harn, 34 cm from heater-a/c control breakout)
• S233
• S258
• Sensor ground
• Serial data
• Solid state
• Sp205 (right side of steering column)
• Spd cntrl
• Sun load input
• Sun load temperature sensor (top of dash)
• Tan

Automatic A/C Wiring Diagram (2 of 2) for Buick Century Custom 2000

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Buick Century Custom 2000:

• (engine harn, 4 cm from coolant fan breakout) s105
• (engine harn, 4 cm from pcm breakout)
• (fuel inj harn, near breakout to map sensor)
• +5v reference
• 3.1l
• 3.8l
• A/c compressor clutch coil
• A/c clu diode
• A/c clutch fuse 23 10a
• A/c clutch relay 15
• A/c press signal
• A/c refrigerent pressure sensor (left side of engine compt, on accumulator)
• A10
• A11
• C11
• Comp control
• Cool fan 1 fuse 15a
• Cool fan 2 fuse 15a
• Cool fan 1 relay
• Cool fan 2 relay
• Cool fan 3 relay
• Coolant fan (left)
• Coolant fan (right)
• E10
• Ect ground
• Ect signal
• Engine controls system
• Engine coolant temperature sensor (top left side of engine, below throttle body)
• F12
• G110 (left front of engine)
• High speed
• Hot at all times
• Ign main relay (closed in run or start)
• Low reference
• Low speed
• Powertrain control module (left front side of engine compt, in air cleaner assembly)
• S121
• S167
• Serial data
• Underhood fuse block (right side of engine compt, mounted to strut tower)

Compressor Wiring Diagram for Buick Century Custom 2000

List of elements for Compressor Wiring Diagram for Buick Century Custom 2000:

• (dash harn, 18 cm from radio breakout) s230
• (left front of engine) g110
• (w/ auto a/c)
• (w/ manual a/c)
• +5v reference
• A/c compressor clutch coil
• A/c clu diode
• A/c clutch fuse 23 10a
• A/c clutch relay 15
• A/c press signal
• A/c refrigerent pressure sensor (left side of engine compt, on accumulator)
• A/c request
• Auto a/c
• Battery
• C11
• C12
• Clutch request
• Comp control
• D12
• Engine controls system
• Fuse block (behind right side of dash)
• G201 (right side of dash)
• Ground
• Hot at all times
• Hot in run
• Hvac control module
• Hvac fuse 10a
• Ign main relay (closed in run or start)
• Ignition
• Low reference
• Manual a/c
• Powertrain control module (left front side of engine compt, in air cleaner assembly)
• Rdo, hvac, rfa clstr, cel tel fuse 10a
• S105 (engine harn, 4 cm from coolant fan breakout)
• S167 (engine harn, 4 cm from pcm breakout)
• S202 (dash harn, 19 cm from radio breakout)
• S233 (dash harn, 4 cm from radio breakout)
• Serial data
• Sp205 (right side of steering column)
• Underhood fuse block (right side of engine compt)

Manual A/C Wiring Diagram for Buick Century Custom 2000

List of elements for Manual A/C Wiring Diagram for Buick Century Custom 2000:

• (dash harn, 18 cm from radio breakout)
• (dash harn, 4 cm from radio breakout) s233
• (engine harn, 4 cm from coolant fan breakout)
• (engine harn, 4 cm from pcm breakout)
• (fuel inj harn, near breakout to map sensor)
• (left side of hvac module) left air temp actuator
• (right side of dash) g201
• +5v reference
• 3.1l
• 3.8l
• A/c compressor clutch coil
• A/c clu diode
• A/c clutch fuse 23 10a
• A/c clutch relay 15
• A/c press signal
• A/c refrigerent pressure sensor (left side of engine compt, on accumulator)
• A/c request sig
• A10
• A11
• Battery
• Blower motor
• Blower motor relay
• Blower motor resistor assembly
• C11
• Clutch request
• Comp control
• Cool fan 1 fuse 15a
• Cool fan 2 fuse 15a
• Cool fan 1 relay
• Cool fan 2 relay
• Cool fan 3 relay
• Coolant fan (left)
• Coolant fan (right)
• Defogger on
• Defogger system
• Drvr temp ctrl
• E10
• Ect ground
• Ect signal
• Engine controls system
• Engine coolant temperature sensor (top left side of engine, below throttle body)
• F12
• Fan off input
• Fuse block (behind right side of dash)
• G110 (left front of engine)
• G201 (right side of dash)
• Gnd
• Ground
• High blower fuse 30a
• High speed
• Hot at all times
• Hot in run
• Hvac control module
• Hvac fuse 10a
• Ign
• Ign main relay (closed in run or start)
• Ignition
• Interior lights
• Interior lights system
• Lamp dim sig
• Low blower fuse 20a
• Low reference
• Low speed
• Nca
• Nca nca
• Off
• Pass temp ctrl
• Pos
• Powertrain control module (left front side of engine compt, in air cleaner assembly)
• Rdo, hvac, rfa clstr, cel tel fuse 10a
• Right air temp actuator (right side of hvac module)
• S105
• S121
• S167
• S230
• Tan
• Underhood fuse block (right side of engine compt, mounted to strut tower)

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams for Buick Century Custom 2000

List of elements for Anti-lock Brake Wiring Diagrams for Buick Century Custom 2000:

• (2000) (1999)
• (below dash, left of steering column)
• A10
• A11
• A8 b5
• Abs fuse 10a
• Abs maxi fuse 60a
• Abs warning
• B10
• B11
• B12
• B6 a11
• Battery
• Body control module (bcm) (behind left side of dash)
• Brake
• Brake fluid level indicator switch (in brake fluid reservoir)
• Brake pressure modulator valve
• C1 stop lamp switch (brake pedal support bracket)
• C10
• C11
• C2 c2
• C3 c2
• Cluster fuse 10a
• Data link connector (dlc) (under left side of dash)
• Delivered torque
• Desired torque
• Electronic brake control module (ebcm) (at left side of engine compartment)
• Electronic power steering system
• Electronic traction control switch
• Fuse block
• G129 (left of starter, on transaxle stud)
• G202
• G202 (on steering column)
• Ground
• Hot at all times
• Hot in run, bulb test or start
• Ignition
• Instrument cluster
• Interior lights system
• Left front wheel spd (hi)
• Left front wheel spd (lo)
• Left front wheel speed sensor
• Left rear wheel spd (hi)
• Left rear wheel spd (lo)
• Left rear wheel speed sensor
• Low trac
• Nca
• Pnk
• Powertrain control module (pcm) (left front of eng compt)
• Pump motor
• Red
• Right front wheel spd (hi)
• Right front wheel spd (lo)
• Right front wheel speed sensor
• Right rear wheel spd (hi)
• Right rear wheel spd (lo)
• Right rear wheel speed sensor
• S205 (i/p harn, right of steering column)
• S211
• Serial data signal
• Solid state
• Splice pack (sp205) (right side of steering column)
• Stop lamp sw out
• Stop lamps fuse 15a
• Strng var assist motor
• Tan
• Trac off
• Underhood accessory wiring junction block
• Vent tube

ANTI-THEFT

Anti-theft Wiring Diagram for Buick Century Custom 2000

List of elements for Anti-theft Wiring Diagram for Buick Century Custom 2000:

• (in air cleaner assembly) powertrain control module
• 5v ref
• B10
• B12
• Bat
• Bcm grd
• Bcm pwr fuse 10a
• Body control module (behind left side of dash, left of steering column)
• Cluster fuse 10a
• Crank maxi fuse 40a
• Crank relay
• Crank sig
• Crank signal bcm, cluster fuse 10a
• Data link connector (dlc) (under left side of dash)
• F10
• G202 (below dash, right side of steering column)
• Hot at all times
• Hot in off, bulb test or start
• Hot in run, bulb test or start
• Hot in start
• Ign
• Ign 0
• Ign 0: cluster pcm & bcm fuse 10a
• Ign ref lo
• Instrument cluster
• Ip fuse block
• Key
• Nca
• Pcm bcm u/h relay fuse 10a
• Pnk
• Resistor pellet
• S211
• S270
• Security indicator
• Serial data
• Splice pack s205 (below dash, right side of steering column)
• Starter enable
• Starter solenoid
• Steering column lock & ignition key cylinder
• Transaxle range switch (on transaxle)
• Underhood electrical center (mounted to right strut tower)

BODY COMPUTER

Body Computer Wiring Diagrams for Buick Century Custom 2000

List of elements for Body Computer Wiring Diagrams for Buick Century Custom 2000:

• (2 door)
• A10
• A11
• A12
• Accessory rly
• Anti-lock brakes system
• Anti-theft system
• Automatic transaxle control lever handle
• B10
• B11
• B12
• Bcm acc fuse 10a
• Bcm power fuse 10a
• Body control module (bcm) (behind left side of dash, left of steering column)
• Computer data lines system
• Courtesy lamp sw out
• Crank, signal, bcm, cluster fuse 10a
• Door locks fuse 20a
• Dr jamb sw sig-driver
• Dr latch sw sig
• Driver seat belt input
• Drl mod output-park brake
• Drl photocell ret
• Drl photocell sig
• Exterior lights system
• Fog lamp sw out
• Fuse block
• Fuse output-acc/run/crank
• Fuse output-accessory
• Fuse output-bat
• Fuse output-crank
• Fuse output-ignition 1
• G204 (below dash, left of steering column)
• G204 (below dash, left side of steering column)
• G205 (below dash, right of steering column)
• G205 (below dash, right side of steering column)
• G309 (left front door sill)
• Grd
• Headlamp sw output
• Headlamp sw sig
• Headlights system
• Horn relay output
• Horns system
• Hot at all times
• Hot in acc or run
• Hot in off, run or start
• Hot in run or start
• Ign 0, cluster, pcm & bcm fuse 10a
• Ignition key alarm switch
• Ignition key resistor fd
• Ignition key resistor ret
• Inadv power bus fuse 15a
• Interior lights system
• Key reminder sw sig
• Left front door lock switch
• Lf turn sig lamp feed
• Lf turn sig sw output
• Lock
• Low tire press reset sw
• Nca
• Park brake indicator switch (on parking brake assembly)
• Park lamp sw sig-off
• Park lamp sw sig-on
• Pcm, bcm u/h relay fuse 10a
• Performance shift switch
• Pnk
• Power distribution system
• Power distribution system (rap)
• Pwr dr lk mtr feed
• Pwr dr lock sw out
• Pwr dr lock sw output
• Remote keyless entry circuit
• Rf turn sig lamp feed
• Rf turn sig sw output
• Right front door lock switch
• S211
• S234
• S269
• S270
• S283
• S303
• S330
• S504
• S604
• Seat belt switch (part of driver's seat belt asembly)
• Serial data sig
• Serial data signal class 2
• Tan
• Theater dimming
• Tire inflation reset switch
• Traction ctrl sig sw
• Trans shift select ind
• Trunk lamp out
• Trunk release rly feed
• Trunk, tailgate, fuel doors system
• Underhood accessory wiring junction block
• Unlock

COMPUTER DATA LINES

Computer Data Lines for Buick Century Custom 2000

List of elements for Computer Data Lines for Buick Century Custom 2000:

• A5 uart data
• Body control module (bcm) (behind left side of dash, left of steering column)
• D12
• Data clss 2
• Data link connector (dlc) (under left side of dash, right of steering column)
• E & c serial data
• E1 e & c serial data
• Electronic brake control/electronic brake traction control module (ebcm/ebtcm) (below left side of dash, left of steering column)
• Fuse block
• G201 (behind right side of glove box)
• G205 (below dash, right side of steering column)
• Hot at all times
• Htr-a/c control
• Inflatable restraint sensing & diagnostic module (sdm) (below carpet, under right front seat)
• Instrument cluster
• Powertrain control module (pcm) (left front side of engine compt, in air cleaner assembly)
• Radio
• Radio, hvac, rfa, cluster, cel tel fuse 15a
• Remote cd player (if equipped)
• S202
• S211
• S230
• Splice pack sp205 (below dash, right of steering column)

COOLING FAN

Cooling Fan Wiring Diagram for Buick Century Custom 2000

List of elements for Cooling Fan Wiring Diagram for Buick Century Custom 2000:

• (engine harn, 4 cm from fan jumper breakout)
• (fuel inj harn, near breakout to map sensor)
• 3.1l
• 3.8l
• A10
• A11
• C11
• Cool fan 1 fuse 15a
• Cool fan 2 fuse 15a
• Cool fan 1 relay
• Cool fan 2 relay
• Cool fan 3 relay
• Coolant fan (left)
• Coolant fan (right)
• E10
• Ect sig
• Engine controls (map sensor)
• Engine coolant temperature sensor (top left side of engine, below throttle body)
• F12
• G110 (left front of engine)
• High spd
• Hot at all times
• Low spd
• Powertrain control module (left front side of engine compt, in air cleaner assembly)
• S105
• S121
• Underhood fuse block (right side of engine compt, mounted to strut tower)

CRUISE CONTROL

Cruise Control Wiring Diagram for Buick Century Custom 2000

List of elements for Cruise Control Wiring Diagram for Buick Century Custom 2000:

• (front of left strut tower)
• All times
• Brake signal input
• Cruise control module
• Cruise control release switch (left side of dash)
• Cruise control switch
• Cruise fuse 10a
• Cruise on/off
• Disable input
• Disable output
• Engage input
• Engaged output
• Exterior lights system
• G204 (below dash, left of steering column)
• Ground
• Hot at
• Hot in run
• I/p fuse block (behind right side of dash)
• Ignition
• Instrument cluster system
• Off
• Only
• Powertrain control module (pcm) (front left side of engine compt)
• R/a
• Release signal
• Resume/accel
• S205 (i/p harness, near steering column)
• S240
• S283
• S295 (behind ashtray)
• Set sw
• Set/coast
• Stop lamps fuse 15a
• Stoplight switch (brake pedal support bracket)
• Vehicle speed input
• Vehicle speed sensor (vss) (lower right of engine, compt, on transaxle)
• Vss high
• Vss low
• Vss output

DEFOGGERS

Defogger Wiring Diagram for Buick Century Custom 2000

List of elements for Defogger Wiring Diagram for Buick Century Custom 2000:

• (behind the right side of glove box)
• (c60/cj3)
• (left front door sill) g309
• (left side of rear shelf) g314
• C1 (cj2) c2
• D nca
• D15 (cj2)
• Driver outside rearview mirror
• G201
• Heated mirror fuse 10a
• Hot at all times
• Hot in run
• Hvac control module
• Hvac fuse 10a
• I/p fuse block
• Mirror defogger
• Nca
• On ind
• On/off momentary defogger switch
• Passenger outside rearview mirror
• Radio noise suppressor wire (in right "c" pillar)
• Rear defog circuit breaker 30a
• Rear window defogger
• Rear window defogger relay (behind glove box, mounted to underside of cross-car beam)
• S230
• S233
• S268 (i/p harn, near blwr motor) nca
• S504
• S604
• Solid state timer
• Under driver's seat)

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Buick Century Custom 2000

List of elements for Electronic Power Steering Wiring Diagram for Buick Century Custom 2000:

• 1995 vftc c
• A11
• A4 c2
• A9 c1
• Abs fuse 10a
• Abs maxifuse 60a
• B10
• B11
• Computer data lines system
• Data link connector (dlc) (under left side of dash, right of steering column)
• Electronic brake control module/ electronic brake traction control module (ebcm/ebtcm) (at left side of engine compartment, near strut tower)
• Engine control system
• Fuse block (behind right side of dash)
• G129 (left of starter, on transaxle stud)
• Ground
• Hot at all times
• Hot in run, bulb test & start
• Ignition
• Msva high
• Msva lo
• Nca
• Pnk
• Red
• Serial data
• Splice pack sp205 (below dash, on right side of steering column)
• Steering gear
• Steering gear (msva) actuator (left rear of engine compt, behind transaxle)
• Underhood accessory wiring junction block (mounted to right strut tower)

ENGINE PERFORMANCE

3.1L

3.1L VIN M, Engine Performance Wiring Diagrams (1 of 4) for Buick Century Custom 2000

List of elements for 3.1L VIN M, Engine Performance Wiring Diagrams (1 of 4) for Buick Century Custom 2000:

• (left of starter, on transaxle stud)
• (on transaxle stud)
• (pin 11-12 not used)
• (pin 14-15 not used)
• (pin 21-27 not used)
• (pin 39-42 not used)
• (pin 49-52 not used)
• (pin 62-63 not used)
• 1-2 ss valve control
• 2-3 ss valve control
• 24x ref
• 3x ref
• A/c press return
• Air sol relay
• Bank 1 ks signal
• Bypass control
• Camshaft position sensor (cmp) (front of eng, below intake plenum)
• Cmp signal
• Connector (dlc) (under left side of dash, right of steering column)
• Cooling fan system
• Crankshaft position (ckp) sensor (7x) (right side of of eng, below manifold)
• Crankshaft position sensor (24x) (front of eng, behind harmonic balancer)
• Cruise control system
• Cruise disable output
• Data link
• Ecm fuse 10a
• Egr val ign pos volt
• Elek ign fuse 15a
• Eng emis fuse 10a
• Evap can purge control
• F/injr fuse 15a
• Fuel inj 1 control
• Fuel inj 2 control
• Fuel inj 3 control
• Fuel inj 5 control
• Fuel inj 6 control
• G129
• High speed fans control
• Ho2s 1 sig low
• Ho2s 2 sig low
• Hot at all times
• Hot in off, run bulb test, or start
• Hot in run, bulb test or start
• I/p fuse block (behind right side of dash, in right door opening)
• Iac valve b high
• Iat sensor ground
• Ic control
• Ign 0 fuse 10a
• Ignition amplifier and switching module
• Ignition control module (top right side of eng)
• Ignition power
• Knock sensor (ks) bank 1 (left side lower eng, above starter)
• Low speed fans control
• Maf sensor signal
• Map sensor
• Map/ect sensor signal
• Pcm ground
• Pnk
• Pnk b
• Power (battery)
• Powertrain control module (pcm) (left front side of eng compt, in air cleaner assembly)
• Red
• Ref low
• S106
• S270
• Sensor ground
• Sensor return
• Serial data (class 2)
• Spark plugs
• Splice pack sp205
• Tan
• Tcc brake switch input
• Tp sensor signal
• Tr switch input b
• Underhood fuse block (mounted to right strut tower)
• Vss high
• Vss low
• Vss output

3.1L VIN M, Engine Performance Wiring Diagrams (2 of 4) for Buick Century Custom 2000

List of elements for 3.1L VIN M, Engine Performance Wiring Diagrams (2 of 4) for Buick Century Custom 2000:

• Air pump fuse 30a
• Air pump relay
• D10
• Evaporative emissions (evap) canister purge solenoid valve (top right side of eng, behind ignition control module)
• Evaporative emissions (evap) canister vent solenoid valve (behind left side of rear fascia splash shield, in wheelwell)
• Fuel injectors
• G108 (left side of front end upper tie bar)
• G129 (on transaxle stud)
• Hot at all times
• Hot in run & start
• Nca
• Pcm dev fuse 10a
• Pnk
• Red
• S105
• S109
• Secondary air injection reaction pump motor (air)
• Secondary injection pump bypass valve solenoid
• Stoplight switch (on brake pedal support bracket)
• Tan
• Transaxle range switch (on top right rear of transaxle)
• Underhood fuse block (mounted to right strut tower)
• Vehicle speed sensor (lower right side of eng compt, on transaxle)

3.1L VIN M, Engine Performance Wiring Diagrams (3 of 4) for Buick Century Custom 2000

List of elements for 3.1L VIN M, Engine Performance Wiring Diagrams (3 of 4) for Buick Century Custom 2000:

• (body harn, under rear seat)
• (engine harn, 4 cm from pcm breakout)
• (fuel inj harn, 2 cm from fuel inj 3 breakout)
• (left side of eng, in air cleaner duct) mass airflow (maf) sensor
• (lower left side of eng, above starter) engine oil pressure indicator switch
• (on bottom of engine oil pan) engine oil level indicator switch
• (on throttle body assembly) idle air control (iac) valve
• A/c refrigerant pressure sensor (on left side of eng compt, on accumulator)
• B12
• Engine coolant temperature (ect) sensor (top left side of eng, below throttle body)
• Exhaust gas recirculation (egr) valve (top rear of eng, near throttle body)
• F c
• Fuel tank pressure sensor (in fuel tank)
• G129 (on transaxle stud)
• Generator
• Instrument cluster
• Intake air temperature (iat) sensor (left rear of eng compt, in air cleaner duct)
• L b
• Malfunction indicator lamp
• Manifold absolute pressure (map) sensor (top right side of eng, above valve cover)
• Pnk
• Red
• S106
• S121
• S167
• S409
• Tan
• Throttle position (tp) sensor (on throttle body assembly)
• Underhood fuse block c1 (mounted to right strut tower)

3.1L VIN M, Engine Performance Wiring Diagrams (4 of 4) for Buick Century Custom 2000

List of elements for 3.1L VIN M, Engine Performance Wiring Diagrams (4 of 4) for Buick Century Custom 2000:

• (on transaxle stud)
• (pin 12-15 not used)
• (pin 31-32 not used)
• (pin 36-38 not used)
• (pin 45-48 not used)
• (pin 51-54 not used)
• (pin 62-65 not used)
• (pin 8-9 not used)
• (right side of rear shelf)
• 1-2 shift solenoid
• 2-3 shift solenoid
• 5 volt ref
• 5v ref a
• A/c compress clutch rly
• A/c refrig press signal
• A/c request signal
• A11
• Air conditioning system
• Air pmp relay
• Auto transaxle fluid temperature sensor
• Ckp sens
• Ckp sens return
• Cluster fuse 10a
• Cmp/ckp sensor batt (+)
• Cmp/ckp sensor ground
• Crank
• Crank signal fuse 10a
• Cruise control system
• Cruise status
• D10
• Ect sensor signal
• Egr pintle position signal
• Egr val control
• Eng oil level ind in
• Eng oil press switch in
• Evap can vent sol control
• F/pmp fuse 15a
• F/pump
• Fuel inj 4 control
• Fuel level sensor
• Fuel level sensor input
• Fuel pump
• Fuel pump relay control
• Fuel tank
• Fuel tank press signal
• G129
• G129 (on transaxle stud)
• G313
• Gen terminal f output
• Gen terminal l output
• Heated oxygen sensor 1 (ho2s 1) (in right side exhaust manifold)
• Heated oxygen sensor 2 (ho2s 2) (in exhaust system, rear of catalytic converter)
• Ho2s 1 signal
• Ho2s 2 signal
• Hot at all times
• Hot in run, bulb test or start
• Hot in run, bulb test, or start
• Hot in start
• I/p fuse block (behind right side of dash, in right door opening)
• Iac coil a high
• Iac coil a low
• Iac coil b low
• Iat sensor signal
• Ignition positive volt
• Map sensor signal
• Mil control
• Nca
• Oxy sen fuse 15a
• Pcm- bcm fuse 10a
• Pnk
• Powertrain control module (pcm) (left front side of eng compt, in air cleaner assembly)
• Red
• Relay
• S105
• S106
• S234
• Sensor ground
• Starter enable control
• Starting/ charging system
• Tan
• Tcc pwm sol val control
• Tcc pwm solenoid
• Tft sensor signal
• Tp sensor signal
• Tps ref tp switch
• Tr switch input a
• Tr switch input c
• Tr switch input p
• Trans fuse 10a
• Transaxle
• Underhood fuse block (mounted to right strut tower)

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Buick Century Custom 2000

List of elements for Back-up Lamps Wiring Diagram for Buick Century Custom 2000:

• (body harness, under left rear seat) s424
• F1 c1
• G313 (right side of rear shelf)
• Hot at all times
• Left back-up lamp
• Mirrors system (automatic day/night mirror)
• Park/neutral position switch (top right rear of transaxle)
• R/cmpt rel fuse 7.5a
• Right back-up lamp
• S905 (rear compt harness, center of trunk lid)
• S915
• Underhood fuse block (mounted to right strut tower)

Exterior Lamps Wiring Diagram for Buick Century Custom 2000

List of elements for Exterior Lamps Wiring Diagram for Buick Century Custom 2000:

• (chmsl harn, center of rear window trim panel, 12 cm from chmsl beakout) s417
• (i/p harn, right of steering column)
• A c1
• A10
• A11
• A12
• A12 c3
• A13
• A14
• A15
• Ambient light sensor (top right side of dash, at base of windshield)
• B c1
• Body control module (bcm) (behind left side of dash, left of steering column)
• C2 f12
• C2 f8
• Center high mounted stoplamp (chmsl)
• Corn- ering lamp
• Cornering lamp
• D12
• Door locks fuse 20a
• Drl ambient light ground ref
• Drl ambient light signal
• E10
• E11
• E12
• E13
• Exterior lamp off input
• F11
• Frt park lps fuse 10a
• Fuse block
• Fuse block (behind right side of dash)
• G side marker lamp
• G108 (left side of front end upper tie bar)
• G204 (below dash, left side of steering column)
• G313 (below right side of rear window trim panel)
• G400 (below left side of rear window trim panel)
• Hazard
• Hazard lamp/ turn signal lamp flasher (below left side of dash)
• Hazard lamps fuse 15a
• Headlamp control
• Headlamp relay (behind glove box, mounted to underside of cross-car beam)
• Headlamp switch
• Headlamp switch input
• Hot at all times
• Hot in run or start
• Hot in run, bulb test or start
• Instrument cluster
• Left
• Left headlamp
• Left rear park lamps
• Left rear side marker lamp
• Left tail/ turn signal/ stop- lamp
• Left turn indicator
• Lp park fuse 20a
• Marker lamp
• Normal
• Off
• Park
• Park brake indicator switch (on parking brake assy)
• Park brake input
• Park lamp relay (behind right side of dash)
• Park lamp relay control
• Park/ turn signal lamp
• Pcm,bcm u/n relay fuse 10a
• Pnk
• Power distribution
• Rear license lamps
• Right
• Right headlamp
• Right rear park lamps
• Right rear side marker lamp
• Right side of steering column, 5 cm from ground breakout) s291
• Right tail/ turn signal/ stop- lamp
• Right turn indicator
• S124
• S205 (dash harness, near steering column)
• S221
• S267
• S269
• S283
• S402
• S403
• S408
• S416
• Side g
• Stop fuse 15a
• Stoplight switch (on brake pedal support bracket)
• Tail lamps, lic lamps fuse 15a
• Turn signal switch
• Turn signals, corn lps fuse 10a
• Underhood accessory wiring junction block
• Underhood accessory wiring junction block (mounted to right strut tower)

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 2) for Buick Century Custom 2000

List of elements for Ground Distribution Wiring Diagram (1 of 2) for Buick Century Custom 2000:

• (ashtray harn, inside ashtray)
• (c60/cj3)
• (century)
• (cj2)
• (engine harness, 4 cm from engine coolant fan jumper connector breakout)
• (forward lamp harn, below left headlamp, 7 cm from left headlamp breakout)
• (front console harn, in console 7 cm from accessory power receptacle breakout)
• (regal)
• A/c clu diode
• A/c compressor clutch coil
• A18
• Accessory power outlet (regal)
• Ashtray lamp (1999 century)
• Ashtray lamp (2000-01 century)
• Automatic transaxle control position indicator bulb (regal)
• Battery
• Blower motor control processor
• Blower motor resistor assembly
• C11
• C206
• C60/cj3
• Century & 2000-01 all
• Cigar lighter (1999 century)
• Cigar lighter (2000-01 century)
• Cigar lighter (regal)
• Cj2
• Console compartment lamp (regal)
• Cool fan 2 relay
• Data link connector (dlc)
• Door
• Electronic brake control module (ebcm)/ electronic brake traction control module (ebcm/ebtcm)
• Engine coolant level indicator module (1999)
• Engine coolant level indicator module (2000-01)
• Engine oil level indicator switch
• Engine oil pressure indicator switch
• F/pump relay
• Fuse block-underhood
• G101 (right side of eng compt, at base of battery)
• G108 (left front side of radiator support)
• G120 (right side of engine, on ignition control module bracket)
• G129 (left of starter, on trans- axle stud)
• G129 (left of starter, on transaxle stud)
• G201 (behind the right side of the glove box)
• Heated oxygen sensor 1
• Heated oxygen sensor 2
• Heater- a/c control
• Horns
• I/p compartment lamp switch
• Ign main relay
• Ignition control module (icm)
• Inflatable restraint sensing & diagnostic module
• Inflatable restraint steering wheel module coil
• Left cornering lamp
• Left electric actuator
• Left engine coolant fan motor
• Left fog lamp (regal)
• Left headlamp
• Left park/ turn signal lamp
• Left radio control switch
• Left side marker lamp
• Lock relay (1999)
• Mass airflow (maf) sensor
• Nca
• Park/ neutral position switch
• Power drop connector
• Powertrain control module (pcm)
• Red
• Regal
• Right cornering lamp
• Right electric actuator
• Right engine coolant fan motor
• Right fog lamp (regal)
• Right headlamp
• Right park/ turn signal lamp
• Right radio control switch
• Right side marker lamp
• S105
• S106 (eng harn, 7 cm from pcm breakout)
• S124
• S295
• S335
• Secondary air injection reaction pump motor (air) (2000-01)
• Steering column electric park lock (w/ console)
• Windshield washer pump
• Windshield washer solvent level switch

Ground Distribution Wiring Diagram (2 of 2) for Buick Century Custom 2000

List of elements for Ground Distribution Wiring Diagram (2 of 2) for Buick Century Custom 2000:

• (1999)
• (2000-01)
• (back-up lamp harness, in rear compt lid)
• (body harn, right out- side floor, next to pass seat)
• (body harness, right side of trunk)
• (left tail lamp harn)
• (main body harness, approx 7 cm from rear compartment courtesy lamp breakout)
• (right side of rear shelf) g313
• 31 cm from left sunshade mirror breakout)
• A a
• A12
• Audio amplifier (base)
• Base
• Below driver's seat) s303
• Body control module (bcm)
• Brake fluid level indicator switch
• Breakout)
• C201
• C3 c1
• C3 c4
• Center high mounted stop lamps
• Cruise control module
• D b
• Data link connector (dlc)
• Daytime running lamp control module (1999)
• Driver information display switch (regal)
• Driver lumbar horizontal adjuster relay
• Driver lumbar vertical adjuster relay
• Driver seat adjuster switch
• Driver seat belt switch
• Driver seat heater control module
• Driver seat heater switch
• Driver's heated seat back element
• Driver's heated seat thermister
• E k
• E16
• Electronic traction control switch (regal)
• Fog lamp switch (regal)
• Fuel pump
• G204 (below dash, left side of steering column)
• G205 (below dash, right side of steering column)
• G309 (left front door sill)
• G313 (right side of rear shelf)
• G314 (left side of rear shelf)
• Ground (on steering column)
• Harn, 5 cm from s383
• Hazard lamp/ turn signal lamp flasher
• Headlamp dimmer switch
• Headlamp relay (2000-01)
• Headlamp switch
• Headlamp switch breakout)
• Ignition key alarm switch
• In rear compt lid) s930
• Inside rearview mirror (day-night)
• Inside rearview mirror (lighted)
• Instrument panel cluster (ipc)
• Left back-up lamp
• Left front door lock
• Left front door lock switch
• Left front window switch
• Left license lamp
• Left outside rearview mirror
• Left rear door lock (ajar indicator switch)
• Left rear park lamp
• Left rear side marker lamp
• Left roof rail courtesy/ reading lamp
• Left sunshade mirror lamp
• Left tail/ stop/turn signal lamp
• Nca
• Outside remote control rearview mirror switch
• Passenger seat adjuster switch
• Passenger seat heater control module
• Passenger seat heater switch
• Passenger's heated seat back element
• Passenger's heated seat thermistor
• Performance shift switch (regal grand sport)
• Provision for mobile telephone amplifier (1999)
• Provision for mobile telephone handset (1999)
• Radio
• Radio antenna module
• Radio noise suppressor
• Rear compartment lid ajar switch
• Rear compartment lid lock release actuator
• Rear window defogger grid
• Remote cd changer (1999, 2000)
• Remote control door lock receiver
• Right back-up lamp
• Right front door lock (ajar indicator switch)
• Right front door lock switch
• Right front window switch
• Right license lamp
• Right outside rearview mirror
• Right rear door lock (ajar indicator switch)
• Right rear park lamp
• Right rear side marker lamp
• Right roof rail courtesy/ reading lamp
• Right sunshade mirror lamp
• Right tail/ stop/turn signal lamp
• S211 (i/p harness, 20 cm from inst cluster breakout)
• S255 (mobile telephone harn, center of dash)
• S301 (or s418)
• S330 (driver's seat harn, below driver's seat)
• S333 (pass seat harn, under pass seat)
• S402 (right tail lamp harness)
• S403
• S414
• S604 (right front door harness, 8 cm from window switch breakout)
• Sunroof module
• Tan
• Tire reset switch
• Vehicle interface unit (viu) (2001)
• W/ cell w/o phone cell phone & 2000-
• W/ dc4
• W/ dd8
• W/ heated seats
• W/o heated seats
• Wind- shield wiper motor

HEADLIGHTS

Headlight Wiring Diagram for Buick Century Custom 2000

List of elements for Headlight Wiring Diagram for Buick Century Custom 2000:

• A10
• A11
• Ambient light sensor (top right side of dash)
• B7 pnk
• Body control module (behind left side of dash)
• D11
• F1 c2
• F10
• F2 c3
• Flash
• Fog lamp relay
• Fog lamp switch
• Fog lp cntrl
• Fog lp fuse 10a
• G108 (left side of front end upper tie bar)
• G204 (below dash, left side of steering column)
• Hdlp l fuse 15a
• Hdlp r fuse 15a
• Head
• Headlamp cntrl
• Headlamp dimmer switch
• Headlamp relay (behind glove box)
• Headlamp sw input
• Headlamp switch
• High
• High beam
• High beam indicator
• Hot at all times
• I/p fuse block (behind right side of dash)
• Illum
• Instrument panel cluster
• Interior lights system
• Left fog lamp
• Left headlamp
• Light sens grd ref
• Light sensor sig
• Low
• Low beam
• Lp park fuse 20a
• Off
• Park
• Park brake switch
• Park brk sw in
• Pnk
• Radio,hvac,rfa, cluster cel tel fuse 15a
• Right fog lamp
• Right headlamp
• S124
• S202
• S221 (i/p harn, right side of steering column, approx 23cm from cluster breakout)
• S283
• Tan
• Underhood fuse block (mounted to right strut tower)
• Underhood junction block (mounted to right strut tower)

HORN

Horn Wiring Diagram for Buick Century Custom 2000

List of elements for Horn Wiring Diagram for Buick Century Custom 2000:

• (1999) (2000/2001)
• (century/regal)
• (century/regal) (intrigue)
• (century/regal: below dash, right side of steering column)
• (intrigue)
• (intrigue) v (century/regal) a17
• (intrigue: right side of dash)
• Body control module (left of steering column)
• C1 c3
• C201
• C6 a5
• C8 c3
• Century/regal
• G108 g109 (century/regal: left side of front end upper tie bar) (intrigue: right side of front end upper tie bar)
• G205 g201
• G207 (on steering column)
• High note horn
• Horn fuse 15a
• Horn output
• Horn relay
• Horn switch
• Horns (behind right front fascia)
• Hot at all times
• Inflatable restraint steering wheel module
• Intrigue
• Low note horn
• Red
• S124 s123
• S211 s230
• Slip ring
• Turn signal cancel cam
• Turn signal switch
• Underhood accessory wiring junction block (mounted on right strut tower)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Buick Century Custom 2000

List of elements for Instrument Cluster Wiring Diagram for Buick Century Custom 2000:

• (below dash, left side of steering column) g204
• (left side of front end upper tie bar)
• (mounted to right strut tower) underhood fuse block
• (not used)
• 12 v reg
• A10
• A11
• A12
• Air bag ind
• Antilock ind
• Antilock ind ctrl
• B10
• B11
• B12
• Battery
• Body control module (behind left side of dash, left of steering column)
• Brake fluid level indicator switch (in brake fluid reservoir)
• Brake ind
• Brake ind ctrl
• C11
• Change oil soon ind
• Change oil soon ind ctrl
• Charge ind
• Charge ind ctrl
• Cluster fuse 10a
• Coolant temp ind
• Coolant temp ind ctrl
• Coolant temperature gauge
• Crank
• Crank signal, bcm, cluster fuse 10a
• Cruise control system
• Cruise ind
• Cruise ind ctrl
• D12
• Data link connector (under left side of dash, right of steering column)
• Dim
• Door ajar ind
• Door ajar ind ctrl
• Driver information display switch (regal only)
• E/m
• E11
• Electronic brake control module (ebcm) (at left side of engine compartment, near strut tower)
• Engine controls system
• Engine coolant level indicator module (mounted on right side of radiator)
• Exterior lights system
• Fuel gauge
• G108
• G201 (behind right side of glove box)
• G202 (on steering column)
• Ground
• Headlights system
• Heater-a/c control
• High beam ind
• Hot at all times
• Hot in off, run or start
• Hot in run, bulb test or start
• Hot in start
• I/p fuse block
• Ign
• Ign 01, bcm & pcm, cluster fuse 10a
• Illumination (5 bulbs)
• Inflatable restraint sensing & diagnostic module (sdm) (below carpet, under right front seat)
• Instrument cluster
• Interior lights system
• Left turn ind
• Left turn lamp ctrl
• Low coolant ind
• Low fuel ind
• Low fuel ind ctrl
• Low oil ctrl
• Low oil ind
• Low tire ind
• Low tire ind ctrl
• Low trac ind
• Low trac ind ctrl
• Low washer fluid signal
• Low washer ind
• Low wshr ind ctrl
• Malfunction indicator lamp
• Mode
• Oil pres ind ctrl
• Oil pressure ind
• Perf shift ind
• Perf shift ind ctrl
• Pk lps
• Pnk
• Powertrain control module (left front side of engine compt, in air cleaner assy)
• Prndl position ind ctrl
• Radio, hvac, rfa, cluster, cel tel fuse 15a
• Reset
• Right turn ind
• Right turn lamp ctrl
• S124
• S202
• S211
• S230
• S234
• S270
• S283
• S295 (ashtray jumper harness, inside ashtray)
• Seat belt ind
• Seat belt ind ctrl
• Security ind
• Security ind ctrl
• Serial data
• Service vehicle soon ind (amber)
• Service vehicle soon ind ctrl
• Speed sensor
• Speedometer
• Splice pack (sp205) (below dash, right of steering column)
• Srl data
• Tachometer
• Trac off ind
• Trac off ind ctrl
• Trip reset input
• Trip reset switch
• Windshield washer solvent level switch (right front of eng compt, in washer fluid reservoir)

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Buick Century Custom 2000

List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Buick Century Custom 2000:

• (body harn, below right front seat) s322
• Body control module (bcm) (behind left side of dash, left of steering column)
• Console compartment lamp
• Console compartment lamp switch (regal)
• Court lmps feed
• Court lmps on
• Dome
• Door open input
• Driver dr open
• G201 (behind right side of dash)
• G204 (below dash, left side of steering column)
• G309 (left front door sill)
• Headlamp switch
• Hot at all times
• Hot in accy & run
• I/p compart- ment lamp switch
• I/p fuse block
• Inadv power bus fuse 15a
• Left front door lock
• Left i/p courtesy lamp
• Left rear door lock
• Off
• Power drop fuse 10a
• Right front door lock
• Right i/p courtesy lamp
• Right rear door lock
• S214 (i/p harn, right side of steering column)
• S230
• S283
• S303
• S335
• S504
• S604
• Theater dim (grd)
• Theater dim 1
• Trunk ajar input

Courtesy Lamps Wiring Diagram (2 of 2) for Buick Century Custom 2000

List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Buick Century Custom 2000:

• (day-night)
• (lighted)
• (quarter courtesy & reading lamp harn, approx 35 cm from 8-pin in-line conn, behind right "c" pillar) s386
• (quarter courtesy & reading lamp harn, approx 5 cm from 8-pin in-line conn, behind right "c" pillar) s392
• Dome lamp
• G313 (right side of rear shelf)
• Inside rear view mirror
• Left roof rail courtesy/ reading lamp
• Left sunshade mirror lamp
• Nca
• Rear compartment courtesy lamp
• Rear compartment lid ajar switch
• Right roof rail courtesy/ reading lamp
• Right sunshade mirror lamp
• S321 (body harn, under right front door pillar)
• S382
• S383 (quarter courtesy & reading lamp harn, left side of windshield header)
• S384 (quarter courtesy & reading lamp harn, approx 25 cm from left lighted visor mirror breakout)
• S385
• S420 (body wiring harn, right side of trunk)
• S930

Instrument Illumination Wiring Diagram for Buick Century Custom 2000

List of elements for Instrument Illumination Wiring Diagram for Buick Century Custom 2000:

• (1999 only) s295
• (2000-01) cigar lighter
• (body harn, below right front seat) s302
• (c60/cj3)
• (cj2)
• (cj2) c16
• (i/p harn, right of steering column) s277
• (i/p harn, right side of dash)
• Ashtray lamp (century)
• Automatic transaxle control position indicator bulb (regal)
• Dome
• Driver seat heater & traction control switch
• Driver seat heater switch
• E16
• Electronic traction control switch (regal)
• Fog lamp switch
• G201 (behind right side of dash)
• G204 (below dash, left side of steering column)
• G205 (below dash, right side of steering column)
• G309 (left front door sill)
• Grd
• Head
• Headlamp switch
• Heater- a/c control
• High
• Hot at all times
• I/p fuse block
• Illum
• Inflatable restraint steering wheel module coil
• Instrument cluster
• Left door lock switch
• Left front window switch
• Low
• Lp park fuse 20a
• Off
• Outside remote control rear view mirror switch
• Panel dimming fuse 7.5a
• Park
• Passenger seat heater switch
• Radio
• Radio control switches
• Red
• Right door lock switch
• Right front window switch
• S211
• S230
• S241 (i/p harn, below radio)
• S267
• S283
• S303
• S504
• S506 (left front door harn, in left front door)
• S604
• S606 (right front door harn, in right front door)
• Strg whl cont fuse 2a
• Tail, lic lamps fuse 15a
• Underhood fuse block
• Vf dim dis sig
• Vf dim sig
• W/ heated seats
• W/o heated seats

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 3) for Buick Century Custom 2000

List of elements for Power Distribution Wiring Diagram (1 of 3) for Buick Century Custom 2000:

• (3.8l)
• (cj3/c60) (cj2)
• (i/p harn, near glove box, 25 cm from blower motor control module) s275
• (i/p harness, right of steering column)
• (u85)
• 20a
• 60a
• A/c clu fuse 10a
• A/c clu relay
• Abs maxi fuse
• Accessory power receptacle
• Air pump fuse 30a
• Air pump relay
• B (century) (regal) c
• Back-up lamp relay (regal)
• Bat 1 maxi fuse 60a
• Bat 2 maxi fuse 60a
• Bat 3 maxi fuse 60a
• Battery
• Bcm pwr fuse 10a
• Blower motor control module
• Blower motor resistor
• Body control module
• C2 l c12
• C201
• C206
• C60/cj3
• Century
• Cigar lighter
• Cigar ltr data link fuse
• Cj2
• Cool fan 1 maxi fuse 25a
• Cool fan 1 relay
• Cool fan 2 maxi fuse 15a
• Cool fan 2 relay
• Cool fan 3 relay
• Crank maxi fuse 40a
• Crank relay
• Data link connector (dlc)
• Door locks fuse 20a
• Driver seat adjuster switch
• Driver seat heater control module (regal)
• E10
• E11
• E12
• Ecm fuse 10a
• Electronic brake control module/ electronic brake traction control module
• F/pmp fuse 15a
• F/pmp relay
• F/pmp spd cont relay
• Fog lamp relay
• Fog lp fuse 10a
• From a remote battery stud (diagram 1 of 3)
• From bat 2 maxi fuse (diagram 1 of 3)
• Fuse block
• Fusible link (5 ga- rust)
• G201 (behind right side of glove box)
• Gen fuse 10a
• Generator
• Hazard fuse 15a
• Hdlp l fuse 15a
• Hdlp r fuse 15a
• Headlamp relay
• Headlamp switch
• Heater- a/c control
• High blower fuse 25a
• Horn fuse 15a
• Horn relay
• Inadv power bus fuse 15a
• Instrument cluster
• L heated seat fuse 15a
• Left headlamp
• Low frequency audio amplifier
• Lp park fuse 20a
• Lumbar adjuster relay (f/b)
• Lumbar adjuster relay (u/d)
• Lumbar adjuster switch (regal)
• Nca
• Outside remote control rearview mirror switch
• Park lamp relay
• Park/ neutral position switch (century)
• Passenger seat heater control module (regal)
• Passenger's seat adjuster switch
• Power drop connector
• Power mirrors fuse 2a
• Power seats circuit breaker 30a
• Powertrain control module
• R heated seat fuse 15a
• R/cmpt rel fuse 7.5a
• Radio
• Radio prem sound fuse 15a
• Radio,hvac rfa,cluster cel tel fuse 15a
• Rear compartment lid release relay
• Rear defogger circuit breaker 30a
• Rear window defogger relay
• Red
• Regal
• Remote battery stud
• Remote cd player
• Remote control door lock receiver
• Right headlamp
• S202
• S269 (i/p harness, near blower motor)
• S335 (regal) (century) s230
• S336
• S440 (body harn, 6.5 cm from rr speaker breakout)
• Starter
• Stop lamps fuse 15a
• Stoplamp switch
• To accessory time delay relay (diagram 2 of 3)
• To hdlp l fuse (diagram 1 of 3)
• To high blower fuse (diagram 1 of 3)
• To ign 2 maxi fuse (diagram 2 of 3)
• Turn signal switch
• Underhood accessory wiring junction block
• W/ heated seats
• W/ lumbar support

Power Distribution Wiring Diagram (2 of 3) for Buick Century Custom 2000

List of elements for Power Distribution Wiring Diagram (2 of 3) for Buick Century Custom 2000:

• (body harness, top of floor tunnel between front seats) s323
• (body harness, under left side of rear seat)
• (cj2)
• (cj2) (c60/cj3)
• (i/p harness, 4 cm from radio breakout)
• (i/p harness, near blower motor)
• (i/p harness, near steering column)
• (i/p harness, right side of steering column) s220
• (w/rap)
• A10
• Acc
• Accessory time delay (rap) relay (behind i/p compt, under- side of cross- car beam)
• Automatic transaxle control
• B10
• Bcm acc fuse 10a
• Body control module
• Body control module (below left side of dash)
• C201
• C206
• C5 c (c60/cj3)
• Console compt lamp switch (regal)
• Crank signal, bcm, cluster fuse 10a
• Cruise control module
• Cruise control release switch
• Cruise control switch
• Cruise fuse 10a
• Driver seat heater switch
• From gen d fuse (diagram 1 of 3)
• From ignition switch (diagram 2 of 3)
• From inadv power bus fuse (diagram 1 of 3)
• Fuse block
• Heater- a/c control
• Heater- a/c control (c60/cj3)
• Hvac fuse 10a
• Ign 0,cluster, pcm & bcm fuse 10a
• Ign1 maxi fuse 30a
• Ign2 maxi fuse 60a
• Ignition switch
• Inflatable restraint steering wheel module coil
• Inside rearview mirror
• Instrument cluster
• Left electric actuator
• Left front window switch
• Left radio control switch
• Lock
• Low blower fuse 20a
• Off
• Park lock fuse (regal) 10a
• Passenger seat heater switch
• Pnk
• Power drop connector
• Power drop fuse 10a
• Powertrain control module
• Pwr windows pwr sunroof circuit breaker 30a
• Radio
• Radio fuse (w/o rap) 2a
• Radio fuse 2a
• Rear window defogger relay
• Red
• Right electric actuator
• Run
• S233
• S234 (i/p harness, right side of steering column)
• S240
• S249
• S263
• S270 (i/p harn, behind right side of dash)
• S410
• Start
• Sunroof module
• To crank signal fuse (diagram 2 of 3)
• To ign main relay (diagram 3 of 3)
• To low blower fuse (diagram 2 of 3)
• To s228 (diagram 3 of 3)
• Under- hood accessory wiring junction block
• Underhood accessory wiring junction block
• Underhood accessory wiring junction box
• Vacuum electric solenoid (cj2)
• W/ heated seats
• W/ rap
• W/ sun- roof
• W/0 heated seats
• W/o rap
• Wind- shield wiper/ washer switch
• Windshield wiper motor
• Wiper fuse 25a

Power Distribution Wiring Diagram (3 of 3) for Buick Century Custom 2000

List of elements for Power Distribution Wiring Diagram (3 of 3) for Buick Century Custom 2000:

• (3.1l)
• (3.8l)
• (engine harn, top of engine) (3.8l) (injector harn, 2 cm from injector 2 breakout) (3.1l)
• (i/p harness, right side of dash)
• A/c clu relay
• A11
• Abs fuse 10a
• Air bag fuse 10a
• Air pump relay
• Automatic transaxle
• Automatic transaxle control (regal)
• B12
• Body control module
• Btsi park lock fuse 10a
• Cluster fuse 10a
• Crank relay
• Electronic brake control module/ electronic brake traction control module
• Elek ign fuse 15a
• Eng emis fuse 10a
• Evaporative emissions canister purge solenoid valve
• Evaporative emissions canister vent solenoid valve
• F/injr fuse 15a
• From ign1 e maxi fuse (diagram 2 of 3)
• From ignition switch (diagram 2 of 3)
• Fuel injector
• Fuse block
• G129 (left of starter, on trans- axle stud)
• Heated oxygen sensor 1
• Heated oxygen sensor 2 (regal)
• Ign main relay
• Ignition control module
• Inflatable restraint sensing & diagnostic module
• Instrument cluster
• Mass airflow (maf) sensor
• Nca
• Oxy sen fuse 15a
• Pcm,bcm u/h relay fuse 10a
• Pnk
• Powertrain control module
• S106
• S109
• S228
• Secondary air injection bypass valve solenoid
• Stoplamp switch
• Supercharger bypass valve (3.8l vin 1)
• Trans fuse 10a
• Turn signal switch
• Turn signals, corn lps fuse 10a
• Underhood accessory wiring junction block

POWER DOOR LOCKS

Power Door Lock Wiring Diagram for Buick Century Custom 2000

List of elements for Power Door Lock Wiring Diagram for Buick Century Custom 2000:

• (body harn, center floor on left side of tunnel) s315
• (body harness, below right door speaker, 44cm from power door breakout) s314
• (century,regal)
• (intrigue)
• 2001 intrigue
• All drs lock
• Battery
• Battery (b+)
• Bcm fuse 10a (intrigue)
• Bcm pwr fuse 10a (century, regal)
• Body control module (behind left side of dash, left of steering column)
• Door lock fuse 20a
• Dr lock sw in
• Dr unlk sw in
• Driver dr unlk
• Except 2001 intrigue
• G204 (left side of steering column)
• G205 (right side of steering column)
• G309 (forward of driver's seat)
• G309 (left front door sill)
• Ground
• Hot at all times
• I/p fuse block (behind right of dash in right door opening)
• Interior lights system
• Left front door lock
• Left front door lock switch
• Left rear door lock
• Lock
• Pass drs unlk
• Radio, hvac, cluster, cel tel fuse 15a (century, regal)
• Radio, hvac, cluster, data line fuse 15a (intrigue)
• Remote control door lock receiver (rke) (left side of dash, on right side of instrument cluster)
• Rfa link
• Right front door lock
• Right front door lock switch
• Right rear door lock
• S202
• S211
• S269
• S283
• S303
• S504
• Tan
• Trunk lid rel
• Trunk/ tailgate/ fuel doors system
• Unlock

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for Buick Century Custom 2000

List of elements for Electrochromic Mirror Wiring Diagram for Buick Century Custom 2000:

• (buick)
• (buick: under body harness, left rear seat, olds: right side of rear compt) s424
• (inside right door sill) g316
• (olds)
• (right side of rear shelf) g313
• (windshield side) ambient sensor
• C1 b
• C1 f6
• C2 a6
• Exterior lights system
• Fuse block (behind right side of dash, in right door opening)
• Gnd
• Headlight sensor (mirror side)
• Hot at all times
• Hot in run
• Hvac fuse 10a
• Inside rearview mirror (day-night)
• Interior lights system
• Left mirror switch
• Mirror on
• Nca
• Off
• R/cmpt rel fuse 7.5a
• Resets to daytime high reflectivity in reverse
• Right mirror switch
• S233
• S323
• S385
• Solid state
• Transaxle range switch (left side of engine compart- ment, on transaxle)
• Underhood (u/h) electrical center (mounted to right strut tower)
• W/ heated seats
• W/o heated seats

Power Mirrors Wiring Diagram for Buick Century Custom 2000

List of elements for Power Mirrors Wiring Diagram for Buick Century Custom 2000:

• & buick
• (left front door sill) g309
• 1998 & olds
• 1998-00 olds
• 1999-00 buick
• 2000 olds
• Driver's seat) g309
• Ecb
• Fuse block
• Hot at all times
• Interior lights system
• Left mirror
• Left outside rearview mirror
• Mirror motor pack
• Nca
• Outside remote control rearview mirror switch
• Power mirrors fuse 10a 2a
• Right mirror
• Right outside rearview mirror
• Right/ left motor
• S504
• Up/ down motor

POWER SEATS

6-Way Power Seat Wiring Diagram for Buick Century Custom 2000

List of elements for 6-Way Power Seat Wiring Diagram for Buick Century Custom 2000:

• (left front door sill)
• Back
• Down
• Driver seat adjuster motor assembly
• Driver seat adjuster switch
• Entire seat
• For- ward
• Front height
• Front passenger seat adjuster motor assembly
• Front passenger seat adjuster switch
• Front vertical adjuster motor
• Fuse block
• G309
• Horizontal adjuster motor
• Hot at all times
• Nca
• Power seats circuit breaker 30a
• Rear height
• Rear vertical adjuster motor
• S303
• S326
• S330
• Tan

Driver's Lumbar Wiring Diagram for Buick Century Custom 2000

List of elements for Driver's Lumbar Wiring Diagram for Buick Century Custom 2000:

• Aft
• Down
• Driver adjuster lumbar horizontal relay
• Driver adjuster lumbar vertical relay
• Driver lumbar horizontal motor
• Driver lumbar vertical motor
• Fore
• G309 (left front door sill)
• H seat lum fuse 15a
• Heated seat circuit
• Hot at all times
• I/p fuse block
• Lumbar adjuster switch
• Pnk
• Power seat circuit
• Red
• S303
• S330
• S331
• Seat circuit breaker 30a
• Tan

Heated Seats Wiring Diagram for Buick Century Custom 2000

List of elements for Heated Seats Wiring Diagram for Buick Century Custom 2000:

• Driver heated seat back element
• Driver heated seat control module
• Driver heated seat cushion cover
• Driver heated seat cushion element
• Driver heated seat switch
• Driver heated seat thermistor
• Front passenger heated seat control module
• G309 (left front door sill)
• Ground
• Hot at all times
• Hot in run
• Hvac fuse 10a
• I/p fuse block
• Interior lights system
• Lh heated seat fuse 15a
• Lo/hi input
• Nca
• On input
• Passenger heated seat back element
• Passenger heated seat cushion cover
• Passenger heated seat cushion element
• Passenger heated seat switch
• Passenger heated seat thermistor
• Pnk
• Rh heated seat fuse 15a
• S303
• S323
• S333
• Sensor input

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for Buick Century Custom 2000

List of elements for Power Top/Sunroof Wiring Diagrams for Buick Century Custom 2000:

• (not used)
• Battery
• Close
• G313 (right side of rear shelf)
• Gnd
• Hot in accy, run, & retained accessory power
• I/p fuse block (behind right side of dash, in right door opening)
• Limit switch module (center rear of sun roof module)
• Ls1
• Ls2
• Ls3
• Open
• Pos 1
• Pos 2
• Pos 3
• Power windows system
• Pwr windows pwr sun roof circuit breaker 30a
• Red
• S410
• S414
• Sun roof actuator (center rear of sun roof module)
• Sun roof module (right corner of sun roof)
• Sun roof switch

POWER WINDOWS

Power Window Wiring Diagram for Buick Century Custom 2000

List of elements for Power Window Wiring Diagram for Buick Century Custom 2000:

• (buick)
• (buick, olds)
• (buick: body harn, on floor under driver's seat)
• (chev, pontiac)
• (chev: crossbody harn below right front seat)
• (olds: body harn, center of floor behind front seats)
• (oldsmobile: 2000)
• (oldsmobile: 2001)
• (pontiac: body harn, on floor near center of vehicle)
• Buick
• Buick oldsmobile: 2000
• Buick, olds chevrolet
• Buick: 2001
• Chev, olds
• Chevrolet
• Down
• Ecb
• Express
• Express down module
• Fuse block (behind right side of dash, in glove box opening)
• Fuse block (behind right side of dash, in right door opening)
• Fuse block (on right side of dash)
• G309 (left front door sill)
• G316 (right front door sill)
• Hot in acc, or run
• Hot in acc, run or during rap
• Hot in run
• Hot in run & start or during rap
• I/p fuse block (behind right side of dash, in right door opening)
• Illumination lamp
• Interior lights system
• Left front
• Left front window motor
• Left front window switch
• Left rear
• Left rear window motor
• Left rear window switch
• Lock out switch
• Oldsmobile: 2001
• Pontiac
• Power window circuit breaker 20a
• Pwr wdo circuit breaker 25a
• Pwr window pwr sunroof circuit breaker 30a
• Pwr windows pwr sunroof circuit breaker 30a
• Right front
• Right front window motor
• Right front window switch
• Right rear
• Right rear window motor
• Right rear window switch
• S303
• S307
• S310
• S310 s410
• S410
• S504
• S505
• S604
• Tan

RADIO

Radio Wiring Diagrams, with Amplifier for Buick Century Custom 2000

List of elements for Radio Wiring Diagrams, with Amplifier for Buick Century Custom 2000:

• (1999)
• (2000)
• (behind dash, right of steering column)
• Am/fm
• Ant in
• Ars
• Bare
• Battery
• Cd com
• Cd drain
• Cd in
• Computer data lines system
• Drain
• E & c data
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• Front window antenna grid
• Fuse block
• Fuse out
• Fused feed
• G202
• G202 (behind dash, right of steering column)
• Ground
• Hot at all times
• Hot in acc or run
• Illum
• Inflatable restraint steering wheel control module
• Interior lights system
• Left front midrange speaker
• Left front tweeter speaker
• Left radio control switches
• Left rear speaker
• Lf audio
• Lf spkr
• Lf tweeter
• Low frequency audio amplifier (in rear compartment, mounted to bottom of rear deck)
• Lr audio
• Lr feed
• Lr rtn
• Lr spkr
• Lt cd sig
• Mid- range
• Mute
• Nca
• Radio
• Radio antenna module (on rear window header panel)
• Radio fuse 2a
• Radio prem fuse 15a (2000)
• Radio pwr
• Radio, hvac fuse 15a (1999)
• Radio, hvac, rfa, cel tel, cluster fuse 15a (2000)
• Rap pwr
• Rear window antenna grid
• Red
• Remote cd player
• Remote radio fuse 15a (1999)
• Rf audio
• Rf feed
• Rf low
• Rf rtn
• Rf spkr
• Rf tweeter
• Right front midrange speaker
• Right front tweeter speaker
• Right radio control switches
• Right rear speaker
• Rr audio
• Rr feed
• Rr rtn
• Rr spkr
• Rt cd sig
• S202
• S255 (1999)
• S301
• S418
• S440
• Scan
• Seek dn
• Seek up
• Source
• Strg ctrl
• Sub feed
• Sub rtn
• Sub- woofer
• Tan
• Vol dn
• Vol up
• W/ adaptive reception system
• W/o adaptive reception system

Radio Wiring Diagrams, without Amplifier for Buick Century Custom 2000

List of elements for Radio Wiring Diagrams, without Amplifier for Buick Century Custom 2000:

• (1999)
• (1999) (2000)
• A c1
• A c2
• Am/fm
• Ant in
• Ars
• B c2
• Battery
• C1 a
• C1 b
• C2 a
• C2 b
• Computer data lines system
• E & c data
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• Front window antenna grid
• Fuse block
• Fuse out
• G202 (behind dash, right of steering column)
• Ground
• Hot at all times
• Hot in acc or run
• Illum
• Inflatable restraint steering wheel control module
• Interior lights system
• Left front door speaker
• Left front tweeter
• Left radio control switches
• Left rear speaker
• Lf spkr
• Lr spkr
• Mute
• Nca
• Radio
• Radio antenna module (on rear window header panel)
• Radio fuse 2a
• Radio pwr
• Radio, hvac fuse 15a (1999)
• Radio, hvac, rfa, cel tel, cluster fuse 15a (2000)
• Rap pwr
• Rear window antenna grid
• Red
• Rf spkr
• Right front door speaker
• Right front tweeter
• Right radio control switches
• Right rear speaker
• Rr spkr
• S202
• S255
• S301 s418
• Scan
• Seek dn
• Seek up
• Source
• Strg ctrl
• Tan
• Vol dn
• Vol up
• W/ adaptive reception system
• W/o adaptive reception system

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Buick Century Custom 2000

List of elements for Shift Interlock Wiring Diagram for Buick Century Custom 2000:

• (on transaxle stud)
• A12
• Automatic transaxle control (btsi) (center of console assembly)
• Automatic transmission shift lock control actuator (btsi) (in column shift)
• Btsi park lock fuse 10a
• Btsi solenoid
• C11
• Century, intrigue
• G129
• Hot in run, bulb test or start
• I/p fuse block (right side of dash, in right door opening)
• Park lock solen- oid
• Pnk
• Pnk a
• Regal
• Regal century, intrigue
• S105
• S106 (intrigue) (regal, century)
• Stoplamp switch (open when brake pedal depressed) (on brake pedal support)
• Transaxle range switch (on top right rear of transaxle)
• Underhood fuse block

STARTING/CHARGING

Charging Wiring Diagram for Buick Century Custom 2000

List of elements for Charging Wiring Diagram for Buick Century Custom 2000:

• (not used) a
• A8 c1
• B12
• Battery
• Charge ind
• Cluster fuse 10a
• Computer data lines
• F term monitor
• Fusible link (10 ga- rust)
• G101 (right side of engine compt, at base of battery)
• G129 (left of starter, on transaxle stud)
• Gen fuse 10a
• Generator l
• Hot at all times
• Hot in run, bulb test or start
• I/p fuse block (behind right side of dash, in right door opening)
• Instrument cluster
• L term monitor c2
• P b+
• Pnk
• Power distribution system
• Powertrain control module (pcm) (left side of engine compt, in air cleaner assembly)
• Red
• Ser. data class 2 c1
• Solid state
• Splice pack (s205) (below dash, right of steering column)
• Starter solenoid
• Underhood fuse block (mounted to right strut tower)

Starting Wiring Diagram for Buick Century Custom 2000

List of elements for Starting Wiring Diagram for Buick Century Custom 2000:

• (2000)
• (2001)
• (or red)
• 30a
• Acc
• B red
• Battery
• Bulb test
• Charging circuit (fusible link)
• Crank
• Crank maxifuse 40a
• Crank relay
• Crank signal bcm, cluster fuse 1oa
• G101 (right side of engine compartment, at base of battery)
• G129 (left of starter, on transaxle stud)
• Hold- in coil
• Hot at all times
• I/p fuse block (behind right side of dash, in right door opening)
• Ign main 1 fuse 40a
• Ignition switch
• Lock
• Nca
• Off
• Park neutral position (pnp) switch (on top right rear of transaxle)
• Pcm bcm u/h relay fuse 10a
• Pnk
• Powertrain control module (pcm) (left front side of engine compartment, in air cleaner assembly)
• Pull- in coil
• Red
• Remote battery stud
• Run
• S228
• S234
• Start
• Starter enable
• Starter motor
• Starter solenoid
• Underhood fuse block (mounted to right strut tower)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Buick Century Custom 2000

List of elements for Supplemental Restraint Wiring Diagram for Buick Century Custom 2000:

• (driver seat adjuster wiring harness, approximately 20 cm (8 inches) from 6 pin in-line connector, below driver's seat) s330
• (inside left door sill forward of left front seat) g309
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• Air bag fuse 10a
• Air bag warning indicator
• B11
• Body control module (bcm) (behind left side of dash, left of steering column)
• Case ground
• Data link connector (dlc) (partial) (under left side of dash, right of steering column)
• Driver frontal high
• Driver frontal low
• Driver side high
• Driver side low
• Fuse block (behind right side of dash, in right door opening)
• G201 (behind right side of dash)
• Ground
• Hot in run, bulb test & start
• If equipped
• Ignition
• Inflatable restraint driver seat module
• Inflatable restraint i/p module
• Inflatable restraint sensing & diagnostic module (sdm) (below carpet, under right front seat)
• Inflatable restraint side impact sensor (mounted on bottom of left "b" pillar)
• Inflatable restraint steering wheel module
• Inflatable restraint steering wheel module coil
• Instrument cluster
• Nca
• Pass frontal high
• Pass frontal low
• Powertrain control module (pcm) (left front side of engine compartment, in air cleaner assembly)
• Seat belt switch
• Seat belt switch (part of driver's seat belt assembly)
• Sensor high
• Sensor low
• Serial data class 2
• Shorting bar
• Solid state
• Splice pack sp205 (below dash, right side of steering column)

TRANSMISSION

3.1L

3.1L VIN M, A/T Wiring Diagram, 4T60-E for Buick Century Custom 2000

List of elements for 3.1L VIN M, A/T Wiring Diagram, 4T60-E for Buick Century Custom 2000:

• (1999)
• (fuel inj harn, 2 cm from inj 3 breakout)
• 1-2 shift sol
• 2-3 shift sol
• 5v reference a
• A red
• Automatic transaxle (4t60-e)
• Automatic transaxle fluid temperature sensor
• B12
• Battery in
• Body control module & instrument cluster
• Class ii data
• Cluster fuse 10a
• Data link connector (partial) (below dash, right of steering column)
• Ecm sense fuse 10a
• Ect sensor in
• Ect sensor return
• Eng emis fuse 10a
• Engine controls system
• Engine coolant temperature sensor (below throttle body)
• Fuse block (behind right side of dash)
• G129 (left side of engine on transaxle stud)
• G129 (lower left side of engine on transaxle stud)
• Hot at all times
• Hot in run, bulb test or start
• Ign 0 fuse 10a
• Ignition 1 in
• Ignition wake up in
• Instrument cluster
• Malfunction indicator lamp
• Mil ctrl
• Pcm ground
• Pcm-bcm fuse 10a
• Pnk
• Powertrain control module (left front of engine compt, in air cleaner assembly)
• Red
• S105
• S106
• S121
• S270
• Splice pack sp205 (below dash, right of steering column)
• Stop lamp switch
• Tan b
• Tcc pwm sol
• Tcc sol
• Tcc sol in
• Tcc/ brake switch
• Tcc/brake sw in
• Tft sensor in
• Tft sensor return
• Throttle position sensor (on throttle body assembly)
• Tp sensor in
• Tp sensor return
• Tr sw in-a
• Tr sw in-b
• Tr sw in-c
• Tr sw in-p
• Trans fuse 10a
• Transaxle range switch (top of transaxle)
• Underhood accessory wiring j/b
• Vehicle speed sensor (lower right rear of engine compt, end of transaxle)
• Vss hi (signal)
• Vss lo (ground)

TRUNK, TAILGATE, FUEL DOOR

Trunk, Tailgate, Fuel Door Wiring Diagrams for Buick Century Custom 2000

List of elements for Trunk, Tailgate, Fuel Door Wiring Diagrams for Buick Century Custom 2000:

• A12
• Body control module (bcm) (behind left side of dash, left of steering column)
• C11
• C2 underhood accessory wiring junction block c1 (mounted to right strut tower)
• Computer data lines system
• Door locks fuse 20a
• Fuse block (behind right side of dash, in right door opening)
• G129 (left of starter, on transaxle stud
• G207 (on steering column)
• G313 (right side of rear shelf)
• Hot at all times
• Radio, hvac, rfa, cluster, cel tel fuse 15a
• Rear compartment lid lock release actuator (near rear compartment lid latch)
• Rear compartment lid lock switch
• Rear compartment lid release relay (behind glove box, mounted to cross- car beam)
• Remote control door lock receiver (rcdlr) (left side of dash, on right side of instrument cluster)
• S105
• S202
• S211
• S269
• S930
• Shift interlock system
• Transaxle range switch (top right rear of transaxle)

WARNING SYSTEMS

Warning System Wiring Diagrams for Buick Century Custom 2000

List of elements for Warning System Wiring Diagrams for Buick Century Custom 2000:

• (left side of engine, in air cleaner) powertrain control module (pcm)
• (passenger's
• (w/ heated seats)
• (w/o heated seats) s303
• Accessory
• Ajar
• B10
• B11
• B12
• Bcm acc fuse 10a
• Body control module (bcm) (behind left side of dash, left of steering column)
• Body harn, on floor, under seat) s322
• Cluster fuse 10a
• Computer data lines system
• Crank
• Crank signal, bcm clstr fuse 10a
• Ctsy
• Door ajar
• Fuse block
• G204 (below dash, left side of steering column)
• G205 (below dash, right side of steering column)
• G309 (left front door sill)
• Ground
• Head
• Headlamp switch
• Hot at all times
• Hot in accy
• Hot in off, bulb test, run or start
• Hot in run, bulb test or start
• Hot in start
• Ign 0, cluster, pcm & bcm fuse 10a
• Igni- tion
• Ignition 0
• Ignition 1
• Ignition switch (key in ignition switch)
• Instrument cluster
• Interior lights system
• Key in ign
• Left front door lock (ajar indicator switch)
• Lp park fuse 20a
• Off
• Or run
• Park
• Park brake (ign 1)
• Park brake indi- cator switch
• Park lp off
• Pcm, bcm u/h relay fuse 10a
• Pnk
• S211
• S234
• S270
• S330
• S504
• Seat belt switch
• Seat belt switch (ign 1)
• Serial data class
• Serial data class 2
• Splice pack sp205 (below dash, right side of steering column)
• Tan
• Tire inflation
• Tire inflation reset switch (in fuse block)
• Under- hood acces- sory wiring junction block

WIPER/WASHER

Wiper/Washer Wiring Diagram for Buick Century Custom 2000

List of elements for Wiper/Washer Wiring Diagram for Buick Century Custom 2000:

• (behind right side of glove box) g201
• (below dash, left side of steering column) g204
• Delay
• Hot in accy or run
• I/p fuse block (behind right side of dash, in right door opening)
• Instrument panel cluster
• Mist
• Off
• On right side of steering column) s249
• Red
• Washer switch
• Wind- shield washer fluid level switch (in washer fluid reservoir)
• Windshield washer pump (in washer fluid reservoir)
• Windshield wiper motor (on left side of firewall, below air inlet screen)
• Windshield wiper/washer switch
• Wiper fuse 25a
• Wiper motor
• Wiper motor controller
• Wiper switch