Buick Verano (2016 – 2017) – fuse box diagram

Buick Verano (2016 – 2017) – fuse box diagram

Year of production: 2016, 2017

Engine Compartment Fuse Block

Buick Verano - fuse box - engine compartment
Buick Verano – fuse box – engine compartment
Fuses Amps Usage
1 20 Engine control module
2 7,5 O2 sensor/ Purge solenoid
3 15 Ignition coils/ Injectors
4 15
5
6a
6b 7,5 Mirror defogger
7 5 Powertrain cooling
8 7,5 Mass airflow sensor/Pre – O2 sensor
9
10 5 Battery potential signal
11 7,5
12
13 25 ABS valve
14
15 10 Engine control module
16 30 Starter control
17 10 Transmission control module
18 30 Rear window defogger
19 30 Front power window
20 30 Rear power window
21 40 Rear electrical center
22
23
24 15 Right high-beam headlamp
25 15 Left high-beam headlamp
26 15 Front fog lamps
27 50
28
29 30 Electric parking brake
30 60 ABS pump
31
32 5 Airbag
33
34 7,5
35 7,5 Door switch supply/Left power window
36 10 A/C clutch
37 10 Canister vent
38
39 20 Fuel system control module
40 10 Front windshield washer
41
42 40 Engine cooling fan (RPO LEA)
43 30 Front wipers
44
45 30 Engine cooling fan (RPO LEA)
46
47 15 Horn
48 60 Engine cooling fan
49 20 Fuel pump
50 5 Rear vision camera
51 7,5 Interior rearview mirror
52
53 7,5 Ignition engine control module/ Transmission control module
54 7,5 Instrument cluster/Fuel system control module/HVAC/ Run/Crank

 

Relays Usage
1
2 Starter
3 Engine control powertrain
4 Rear window defogger
5
6 High-beam headlamps
7
8
9
10 EGR/Coolant pump/ AIR solenoid valve
11 Engine cooling fan (RPO LEA)
12 Engine cooling fan (RPO LEA)
13 Engine cooling fan (RPO LEA)
14 Run/Crank

Instrument Panel Fuse Block

Buick Verano - fuse box - instrument panel
Buick Verano – fuse box – instrument panel
Fuses Amps Usage
1 2 Steering wheel controls
2 20 Body control module
3 20 Body control module
4 20 Infotainment system
5 10 Information display/Parking assist
6 20 Cigar lighter
7 20 Power outlet
8 30 Body control module
9 30 Body control module
10 30 Body control module
11 40 Interior fan
12 25 Driver power seat
13
14 7,5 Diagnostic connector
15 10 Airbag
16 10 Central locking system/ Tailgate
17 10 A/C system
18 30 Infotainment system
19 30 Body control module
20 5 Passenger power seat
21 5,5 Instrument cluster
22 2/5 Ignition/ Electronic key system
23 20 Body control module
24 20 Body control module
25
26

 

Relays Usage
1 Trunk open
2 Door security
3 Power outlet

Rear Compartment Fuse Block

The rear compartment fuse block, if equipped, is on the left side of the trunk behind a cover.

Buick Verano - fuse box - rear compartment
Buick Verano – fuse box – rear compartment
Fuses Amps Usage
F01
F02
F03 5 Rear parking assist
F04
F05
F06
F07 10
F08
F09
F10
F11
F12
F13
F14
F15
F16 5 Rear vision camera
F17
F18
F19 7,5 Heated steering wheel
F20 25 Sunroof
F21 25 Heated seats
F22
F23
F24
F25 5 Side blind zone alert
F26 30
F27 30 Passive entry/ Passive start
F28
F29
F30
F31 30 Amplifier
F32

 

Relays Usage
R01 Run/Crank
R02
R03
R04
R05

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (1988 – 1993) – fuse box diagram

Buick Regal (1988 – 1993) – fuse box diagram

Year of production: 1988, 1989, 1990, 1991, 1992, 1993

Fuses and Circuit Breakers

This fuse panel is inside the glove box. Pull the cover down for access. Some spare fuses and a fuse puller are included.

Buick Regal mk3 - fuse box
Buick Regal mk3 – fuse box
Fuses Amp Usage
1 10 Radio & Clock
2 15 Radio & Clock; Instrument Cluster; Passive Restraint Timer
3 15 Courtesy, Glove Box, Underhood, Trunk, Header Lights; Cigarette Lighter; Lighted Inside Rearview Mirror; Power Door Locks; Power Mirrors
4 25 Windshield Wiper & Washer
5 10 Cruise Control: DRL Module; Instrument Cluster; HVAC
6 15 Brake Lights; ABS Control Module; Chime Module
7 15 Engine Control Module
8 20 Taillights; DRL Module
9 15 Hazard Warning Flasher
10 10 Rear Defogger Timer Relay: Instrument Cluster; Chime Module; Cruise Control; DRL Module; Lamp Driver Module; ABS Lamp Driver
11 5 Instrument Panel. Console, Switch Lights
12 25 Blower Motor
13 10 Turn Signals
14 Not Used
15 10 ABS Control Module
16 Not Used
17 Not Used
18 Not Used

Electrical Center Driver Side – Underhood

Mini Fuse Amp Usage
1 Not Used
2 Not Used
3 Not Used
4 Not Used
5 Not Used
6 Not Used
7 Not Used
8 5 ABS Control Module
9 15 Fog Lights
10 10 Horn
11 Not Used
12 Not Used
13 60 ABS Controller
14 50 Exterior Lights

 

Relay Amp Usage
15 Horn
16 Fog Lamps
17 ABS

If your car has anti-lock brakes, there is an ABS electrical center under the hood on the driver’s side.

Electrical Center Passenger Side – Underhood

Buick Regal mk3 - fuse box - electrical center (underhood passenger side)
Buick Regal mk3 – fuse box – electrical center (underhood passenger side)
Fuse Amp Usage
18 20 Fuel Injectors (3.8L)
19 15 Trunk Release
20 20 ECM; Fuel Pump
21 10 ECM (3.8L)
22 3 Cooling Fan Relay (3.8L)
23 Not Used
24 10 Direct Ignition System
25 10 Fuel Injectors (3.1 L)
26 Not Used
27 15 Ignition
28 10 TCC; Primary Cooling Fan (3.1 L)

 

Relay Amp Usage
29 Fuel Pump
30 Cooling Fan Control (3.8L)
31 Cooling Fan Control (3.8L) Secondary Cooling Fan
32 Primary Cooling Fan
33 A/C Clutch Coil

 

Fusible Elements Amp Usage
34 60 Starter Solenoid
35 60 Cooling Fan
36 60 Blower Motor
37 60 Cooling Fan
38 30 Fuse Block

 

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (1994) – fuse box diagram

Buick Regal (1994) – fuse box diagram

Year of production: 1994

Fuse block

This fuse panel is inside the glove box. Pull the cover down to access the fuses. Some spare fuses and a fuse puller are included.

Buick Regal mk3 - fuse box
Buick Regal mk3 – fuse box
Fuses Amp Usage
1 10 Radio & Clock, Steering Wheel Radio Switches
2 10 Headlight Switch, Air Bag Diagnostic Module, ABS Lamp Driver Module, Daytime Running Lamps Module (w/DRL), TCC/Brake Switch, Cruise Control Cut-Out Switch, Instrument Cluster, Chime Module, Rear Defogger Timer Relay
3 20 A/C HI Blower Relay
4 25 Wipermasher Switch
5 10 Turn Signal Flasher
6 15 TCC/Brake Switch, Hazard Flasher
7 15 Vanity Mirror, Lights, I/P Compartment Light, Courtesy Lights, Trunk Courtesy Light, Dome/Reading Lights, Cigar Lighter
8 15 Air Bag Diagnostic Module
9 20 Power Door Locks, Remote Keyless Entry System
10 15 Cigar Lighter
11 5 Theft Deterrent Decoder Module
12 15 Heater, Vent A/C Solenoid Box, A/C LO Blower Relay
13 15 Chime Module, Electronic Brake Control Module. Theft Deterrent Decoder Module, Radio, Passive Restraint Timer Relay, Low Oil Level Module
14 15 Air Temperature Valve Motors, Instrument Cluster, Daytime Running Lights Module (w/DRL), HVAC Control Assembly, Multi-Function Lever, Heated Oxygen Sensor #2, Passenger Temperature Control
15 5 Electronic Brake Control Module, Underhood, Electrical Center #2, ABS Relay
16 10 Antenna Relay, Outside Mirror Control, Front Window/Door Lock Switches, Front Door Handle Switches
17 Not Used
18 5 Air Bag Diagnostic Module

Component Center Under Instrument Panel

Buick Regal mk3 - fuse box - component center (under instrument panel)
Buick Regal mk3 – fuse box – component center (under instrument panel)
Item Amp Usage
1 Defogger Timer Relay
2 Air Conditioner Blower Relay(HI)
3 Air Conditioner Blower Relay (LO)
4 30 Defogger Circuit Breaker
5 30 Power Accessories Circuit Breaker
6 30 Power Windows and Sunroof Circuit Braker
7 Not Used
8 20 Lock Control Fuse
9 Chime Module
10 Hazard Flashe

Electrical Center Passenger Side – Underhood

Buick Regal mk3 - fuse box - electrical - center underhood passenger side
Buick Regal mk3 – fuse box – electrical – center underhood (passenger side)
Mini fuse Amp Usage
1 Not
2 15 Remote Trunk Release
3 20 Powertrain Control Module (PCM), Fuel Pump/Oil Pressure Switch, Fuel Pump Relay. Fan Control #I Relay
4 15 Automatic Transaxle, Transaxle Range Switch (w/VIN M only)
5 15 Generator. Digital Exhaust Recirculation (DEGR), Heated Oxygen Sensor, Fan Control #2 Relay, A/C Compressor Relay (VIN M only)
6 15 Cruise Control Module. A/C Compressor Relay (VIN L only)
7 15 Fuel Injectors, High Resolution 24X Crankshaft Position Sensor, Camshaft Position Sensor
8 15 Powertrain Control Module (PCM), Mass Air Flow (MAF) Sensor (VIN L only)
9 15 Electronic Ignition (E1)-Control Module

 

Maxi fuse Amp Usage
10 60 I/P Fuse Block, Courtesy Fuse. C/Ltr Fuse, Elec. Fuse, ACC Fuse
11 60 Fdn Control #I Relay
12 60 Passenger Side Underhood Electrical Center and I/P Fuse Block: Blower Fuse. Stop Fuse. Door Locks Fuse
13 60 Fan Control #2 Relay and Component Center: Rear Defog Circuit Breaker, Power ACC Circuit Breaker

 

Relay Amp Usage
14 Fuel Pump
15 A/C Compressor
16 Fan Control #2 – Secondary Cooling Fan (Passenger Side)
17 Fan Control #I – Primary Cooling Fan (Driver Side)
18 Not Used

Electrical Center Driver Side – Underhood

Buick Regal mk3 - fuse box - electrical center underhood driver side
Buick Regal mk3 – fuse box – electrical center underhood (driver side)
Mini Fuse Amp Usage
1 Not Used
2 Not Used
3 Not Used
4 10 Fog Lamps
5 25 Parking Lamps, Headlight Switch
6 15 Horn Relay, Underhood Light
7 Not Used
8 Not Used
9 Not Used

 

Maxi Fuse Amp Usage
10 40 Component Center: Power Windows Circuit Breaker, Passenger Side Underhood Electrical Center, TCC and Engine Emissions Fuse
11 40 I/P Fuse Block: Radio, Wiper, HVAC, ABS and Turn Signal Fuses; Passenger Side Underhood Electrical Center: Fuel Injections, ECM IGN and ELEK IGN Fuses
12 30 Headlight Switch Circuit Breaker
13 60 ABS Relay

 

Relay Amp Usage
14 Anti-lock Brake System
15 Fog Lamps
16 Horn

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (1995) – fuse box diagram

Buick Regal (1995) – fuse box diagram

Year of production: 1995

Instrument Panel Fuse Block

Some fuses are located in a fuse block on the passenger’s side of the instrument panel.

Buick Regal mk3 - fuse box - instrument panel
Buick Regal mk3 – fuse box – instrument panel
Circuit Breakers Usage
C Power Windows
D Power Seat

 

Fuses Usage
1 CIGAR LIGHTER — Instrument Panel Cigarette Lighter
5 HAZARD FLASHER
6 POWER ACCESSORY #2 — Sunroof Control Unit
7 LOCK CONTROL — Door Lock Relay
10 I/P ELECTRONICS BATTERY FEED — Chime Module, Electronic Brake Control Module (EBCM), Theft-Deterrent Module, Radio, Radio Amplifier, Trip Computer
11 STARTER RELAY
12 ANTI-THEFT — Theft-Deterrent Module
14 HVAC BLOWER MOTOR — Blower Motor Relay
15 HVAC #1 — Air Temperature Valve Motor: Trip Computer, Daytime Running Lamps Module (DRL), HVAC Control Assembly, Multifunction Lever Cruise Control Switch
16 REAR DEFOG — HVAC Control Assembly Rear Window Defogger Switch
19 POWER ACCESSORY #1 — Antenna Relay, Power Mirror Switch, Door Lock Switches, Door Handle Switches, Trunk Courtesy Lamp
21 AIR BAG SYSTEM
23 STOPLAMPS — TCC/Brake Switch
24 HVAC #2 — HVAC Control Assembly, Solenoid Box
28 CTSY LAMPS — Vanity Mirrors, T/P Courtesy Lamps, I/P Compartment Lamp, Header Courtesy and Reading Lamp, I/S Lighted Rearview Mirror, Dome and Reading Lamps, Quarter Courtesy Lamps
29 WIPER — Wiper Switch
30 TURN SIGNAL — Turn Signal Flasher
32 POWER LOCKS — Door Lock Relay
33 ABS — Electronic Brake Control Module (EBCM), ABS Relay
37 AUXILIARY POWER
38 RADIO — Radio, Steering Wheel Radio Switches
39 I/P ELECTRONICS IGNITION FEED — Headlamp Switch, Cruise Control Cut-Out Switch, Air Bag System, TCC/Brake Switch, Instrument Cluster, Chime Module, Second-Gear Start Switch, Daytime Running Lamps Module (DRL)

Underhood Electrical Center — Passenger’s Side

Some fuses and relays are located in the underhood fuse block on the passenger’s side of the vehicle in the engine compartment.

Buick Regal mk3 - fuse box - engine compartment (passeneger's side)
Buick Regal mk3 – fuse box – engine compartment (passeneger’s side)
Fuses Usage
R/CMPT REL Remote Trunk Release
ECM BAT Powertrain Control Module (PCM), Fuel Pump, Fuel Pump Relay, Fan Cont #1 Relay
ENG EMIS Generator, Fan Cont #2 Relay, A/C CMPR Relay (VIN M only)
TCC Automatic Transaxle, Transaxle Range Switch
F/IN J N Fuel Injectors
ECM IGN Powertrain Control Module (PCM), EGR, CCP, VAPSW, Mass Air Flow (MAF) Sensor (VIN X only). Oxy Sensor
ELEK IGN Electronic Ignition (EI) Control Module
10 I/P Fuse Block
11 FAN CONT #I Relay
12 Passenger’s Side Underhood Electrical Center and I/P Fuse Blocks: Fuses 5, 14,23 and 32
13 FAN CONT #2 Relay and UP Fuse Block: Fuse 16, Power Seat Circuit Breaker “D”

 

Relays Usage
14 FUEL PUMP
15 A/C CMPR
16 FAN CONT #2 — Secondary Cooling Fan (Passenger Side)
17 FAN CONT #I — Primary Cooling Fan (Driver Side)
18 Ignition Relay

Underhood Electrical Center — Passenger’s Side

Additional fuses are in the underhood electrical center on the driver’s side of the engine compartment.

Buick Regal mk3 - fuse box - engine compartment (driver's side)
Buick Regal mk3 – fuse box – engine compartment (driver’s side)
Fuses Usage
FOG LPS Fog Lamps
PARK LPS Headlamp Switch
HORN Horn Relay, Underhood Lamp
VAR P/S EVO Steering
10 IGN SW2 — I/P Fuse Block: PWR WDO and Circuit Breaker “D”; Passenger’s Side Underhood Electrical Center: TCC and ENG EMIS Fuses
11 IGN SW1 — I/P Fuse Block: Radio, Wiper, HVAC, ABS and Turn Signal Fuses; Passenger’s Side Underhood Electrical Center: F/IJN, ECM IGN and ELEK IGN Fuses
12 HD LPS — Circuit Breaker to Headlamp Switch
13 ABS — ABS Relay

 

Relay Usage
14 ABS — Anti-Lock Brake System
15 FOG LPS
16 HORN

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (1996) – fuse box diagram

Buick Regal (1996) – fuse box diagram

Year of production: 1996

Instrument Panel Fuse Block

Some fuses are located in a fuse block on the passenger’s side of the instrument panel.

Buick Regal mk3 - fuse box - instrument panel
Buick Regal mk3 – fuse box – instrument panel

 

Circuit Breakers Usage
C Power Windows
D Power Seat

 

Fuses Usage
1 CIGAR LIGHTER — Instrument Panel Cigarette Lighter
3 DRL MDL
4 HVAC #2 — HVAC Control Assembly, Solenoid Box
5 HAZARD FLASHER
6 POWER ACCESSORY #2 — Sunroof Control Unit
7 LOCK CONTROL — Door Lock Relay
10 I/P ELECTRONICS BATTERY FEED — Chime Module, Electronic Brake Control Module (EBCM), Theft-Deterrent Module, Radio, Radio Amplifier, Trip Computer
11 STARTER RELAY
12 ANTI-THEFT — Theft-Deterrent Module
13 ABS — Electronic Brake Control Module (EBCM), ABS Relay
14 HVAC BLOWER MOTOR — Blower Motor Relay
15 HVAC #1 — Air Temperature Valve Motor: Trip Computer, Daytime Running Lamps Module (DRL), HVAC Control Assembly, Multifunction Lever Cruise Control Switch
16 REAR DEFOG — HVAC Control Assembly Rear Window Defogger Switch
19 POWER ACCESSORY #1 — Antenna Relay, Power Mirror Switch, Door Lock Switches, Door Handle Switches, Trunk Courtesy Lamp
21 AIR BAG SYSTEM
23 STOPLAMPS — TCC/Brake Switch
24 CRUISE CONTROL
28 CTSY LAMPS — Vanity Mirrors, T/P Courtesy Lamps, I/P Compartment Lamp, Header Courtesy and Reading Lamp, I/S Lighted Rearview Mirror, Dome and Reading Lamps, Quarter Courtesy Lamps
29 WIPER — Wiper Switch
30 TURN SIGNAL — Turn Signal Flasher
32 POWER LOCKS — Door Lock Relay
37 AUXILIARY POWER
38 RADIO — Radio, Steering Wheel Radio Switches
39 I/P ELECTRONICS IGNITION FEED — Headlamp Switch, Cruise Control Cut-Out Switch, Air Bag System, TCC/Brake Switch, Instrument Cluster, Chime Module, Second-Gear Start Switch, Daytime Running Lamps Module (DRL)

Underhood Electrical Center — Passenger’s Side

Some fuses and relays are located in the underhood fuse block on the passenger’s side of the vehicle in the engine compartment.

Buick Regal mk3 - fuse box - engine compartment (passeneger's side)
Buick Regal mk3 – fuse box – engine compartment (passeneger’s side)
Fuses Usage
R/CMPT REL Remote Trunk Release
ECM BAT Powertrain Control Module (PCM), Fuel Pump, Fuel Pump Relay, Fan Cont #1 Relay
A/C CONT A/C CMPR Relay (VIN M only)
TCC Automatic Transaxle, Transaxle Range Switch
F/IN J N Fuel Injectors
ECM IGN Powertrain Control Module (PCM), EGR, CCP, VAPSW, Mass Air Flow (MAF) Sensor (VIN X only), Oxygen Sensor, Vac Canister Switch, Fan #2 Relay
ELEK IGN Electronic Ignition (EI) Control Module
10 I/P Fuse Block
11 FAN CONT #I Relay
12 Passenger’s Side Underhood Electrical Center and I/P Fuse Blocks: Fuses 5, 14,23 and 32
13 FAN CONT #2 Relay and UP Fuse Block: Fuse 16, Power Seat Circuit Breaker “D”

 

Relays Usage
14 FUEL PUMP
15 A/C CMPR
16 FAN CONT #2 — Secondary Cooling Fan (Passenger Side)
17 FAN CONT #I — Primary Cooling Fan (Driver Side)
18 Ignition Relay

Underhood Electrical Center — Passenger’s Side

Additional fuses are in the underhood electrical center on the driver’s side of the engine compartment.

Buick Regal mk3 - fuse box - engine compartment (driver's side)
Buick Regal mk3 – fuse box – engine compartment (driver’s side)
Fuses Usage
PARK LPS Headlamp Switch
HORN Horn Relay, Underhood Lamp
VAR P/S EVO Steering
ABS Anti-Lock Brake System
10 IGN SW2 — I/P Fuse Block: PWR WDO and Circuit Breaker “D”; Passenger’s Side Underhood Electrical Center: TCC and ENG EMIS Fuses
11 IGN SW1 — I/P Fuse Block: Radio, Wiper, HVAC, ABS and Turn Signal Fuses; Passenger’s Side Underhood Electrical Center: F/IJN, ECM IGN and ELEK IGN Fuses
12 HD LPS — Circuit Breaker to Headlamp Switch
13 ABS — ABS Relay

 

Relay Usage
14 ABS — Anti-Lock Brake System
16 HORN

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (1997 – 1999) – fuse box diagram

Buick Regal (1997 – 1999) – fuse box diagram

Year of production: 1997, 1998, 1999

Instrument Panel Fuse Block

Some fuses are located in a fuse block on the passenger’s side of the instrument panel.

Buick Regal mk4 - fuse box - instrument panel
Buick Regal mk4 – fuse box – instrument panel
Circuit Breakers Usage
A Tire Inflation Monitor Reset Button
B Power Windows, Power Sunroof
C Rear Window Defogger
D Power Seat

 

Fuses Usage
1 Ignition Key Solenoid
4 Ignition Signal — Hot in Run and Start — PCM, BCM U/H Relay
5 Remote Radio Premium Sound
6 Power Mirrors
8 Panel Dimming
10 Ignition Signal — Hot in Run, Unlock and Start — Cluster, Powertrain Control Module, Body Control Module
13 DRL Module
14 Interior Lamps
15 Door Locks
17 Taillamps, License Lamps
18 Radio
19 Heated Mirrors
20 Cruise Control
22 Instrument Panel Cluster
23 Cigarette Lighter, Auxiliary Power Connection (Power Drop), Data Link
24 Stoplamps
26 Parking Lamps
27 Auxiliary Power Connection (Power Drop): Hot in ACC and Run
28 Crank Signal, Body Control Module, Cluster, Powertrain Control Module
29 Ignition Signal — HVAC Control Head
30 Shifter Lock Solenoid
31 Air Bag
32 Body Control Module
33 Hazard Flashers
34 Driver’s Heated Seat
36 Ignition Signal: Hot in ACC and Run, Body Control Module
38 Low Blower
39 Anti-Lock Brakes
40 Turn Signals, Cornering Lamps
41  Radio, HVAC Head, Remote Keyless Entry, Cluster, CEL TEL
42 High Blower
43 Passenger’s Heated Seat
44 Audio Steering Wheel Controls
45 Wipers

Underhood Fuse Block

Some fuses and relays are located in the underhood fuse block on the passenger’s side of the vehicle in the engine compartment.

Buick Regal mk4 - fuse box - engine compartment
Buick Regal mk4 – fuse box – engine compartment
Fuses Usage
1 ABS
2 Starter Solenoid
3 Power Seats, Rear Window Defogger, Heated Seats
4 High Blower, Hazard Flasher, Stoplamps, Power Mirror, Door Locks
5 Ignition Switch, BTSI, Stoplamps, ABS, Turn Signals, Cluster, Air Bag, DRL Module
6 Cooling Fan
7 Interior Lamps, Retained Accessory Power, Keyless Entry, CEL TEL, Data Link, HVAC Head, Cluster, Radio, AUX Power (Power Drop), Cigarette Lighter
8  Ignition Switch, Wipers, Radio, Steering Wheel Controls, Body Control Module, AUX Power (Power Drop), Power Windows, Sunroof, HVAC Controls, DRL, Rear Defog Relay
9 Cooling Fan 2
10 Cooling Fan 3

 

Relays Usage
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Not Used
15 A/C Clutch
16 Horn
17 Fog Lamps
18 Fuel Pump, Speed Control (L67 only)
19 Fuel Pump
20 Not Used
21 Generator
22 ECM
23 A/C Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
26 Transaxle

 

Fuses Usage
27 Horn
28 Fuel Injector
29 Oxygen Sensor
30 Engine Emissions
31 Fog Lamps
32 Headlamp (Right)
33 Rear Compartment Release
34 Parking Lamps
35 Fuel Pump
36 Headlamp (Left)
37 Spare
38 Spare
39 Spare
40 Spare
41 Spare
42 Spare
43 Fuse Puller
SYMBOL Air Conditioner Compressor Clutch Diode

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (2000) – fuse box diagram

Buick Regal (2000) – fuse box diagram

Year of production: 2000

Instrument Panel Fuse Block

Some fuses are located in a fuse block on the passenger’s side of the instrument panel.

Buick Regal mk4 - fuse box - instrument panel
Buick Regal mk4 – fuse box – instrument panel
Circuit Breakers Usage
TIRE RESET Tire Inflation Monitor Reset Button
PWR WINDOWS, PWR SUNROOF Power Windows, Power Sunroof
REAR DEFOG Rear Window Defogger
POWER SEATS Power Seat
Blank Not Used

 

Fuses Usage
PARK LOCK Ignition Key Solenoid
Blank Not Used
Blank Not Used
PCM, BCM, U/H RELAY Ignition Signal: Hot in Run and Start, Powertrain Control Module, Body Control Module, Underhood Relay
RADIO PREM. SOUND Remote Radio Premium Sound
POWER MIRRORS Power Mirrors
Blank Not Used
PANEL DIMMING Panel Dimming
Blank Not Used
IGN 0, CLUSTER, PCM, BCM Ignition Signal: Hot in Run, Unlock and Start, Cluster, Powertrain Control Module, Body Control Module
Blank Not Used
Blank Not Used
DRL Daytime Running Lamps Module
INADV POWER BUS Interior Lamps, Retained Accessory Power
DOOR LOCKS Door Locks
Blank Not Used
TAIL LAMPS, LIC LAMPS Taillamps, License Lamps
RADIO Radio
HEATED MIRROR Heated Mirrors
CRUISE Cruise Control
Blank Not Used
CLUSTER Instrument Panel Cluster
CIGAR LTR, DATA LINK Cigarette Lighter, Auxiliary Power Connection (Power Drop), Data Link
STOP LAMPS Stoplamps
Blank Not Used
FRT PARK LPS Parking Lamps
POWER DROP Auxiliary Power Connection (Power Drop): Hot in ACC and Run
CRANK SIGNAL, BCM, CLUSTER Crank Signal, Body Control Module, Cluster, Powertrain Control Module
HVAC Ignition Signal, HVAC Control Head
BTSI PARK LOCK Shifter Lock Solenoid
AIR BAG Air Bag
BCM PWR Body Control Module
HAZARD Hazard Flashers
LH HEATED SEAT Driver’s Heated Seat
Blank Not Used
BCM ACC Ignition Signal: Hot in ACC and Run, Body Control Module
Blank Not Used
LOW BLOWER Low Blower
ABS Anti-Lock Brakes
TURN SIGNALS, CORN LPS Turn Signals, Cornering Lamps
RADIO, HVAC, RFA, CLUSTER Radio, Heating Ventilation Air Conditioning Head, Remote Keyless Entry, Cluster
HIGH BLOWER High Blower
RH HEATED SEAT Passenger’s Heated Seat
STRG WHL CONT Audio Steering Wheel Controls
WIPER Wipers

Underhood Fuse Block

Some fuses and relays are located in the underhood fuse block on the passenger’s side of the vehicle in the engine compartment.

Buick Regal mk4 - fuse box - engine compartment
Buick Regal mk4 – fuse box – engine compartment
Maxi Fuses Usage
1 ABS
2 Starter Solenoid
3 Power Seats, Rear Window Defogger, Heated Seats
4 High Blower, Hazard Flasher, Stoplamps, Power Mirror, Door Locks
5 Ignition Switch, BTSI, Stoplamps, ABS, Turn Signals, Cluster, Air Bag, DRL Module
6 Cooling Fan
7 Interior Lamps, Retained Accessory Power, Keyless Entry, CEL TEL, Data Link, HVAC Head, Cluster, Radio, AUX Power (Power Drop), Cigarette Lighter
8  Ignition Switch, Wipers, Radio, Steering Wheel Controls, Body Control Module, AUX Power (Power Drop), Power Windows, Sunroof, HVAC Controls, DRL, Rear Defog Relay

 

Mini Relays Usage
9 Cooling Fan 2
10 Cooling Fan 3
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Air Pump (Optional)
15 A/C Clutch
16 Horn
17 Fog Lamps
18 Fuel Pump, Speed Control (L67 only)
19 Fuel Pump

 

Mini Fuses Usage
20 Air Pump (Optional)
21 Generator
22 ECM
23 A/C Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
26 Transaxle
27 Horn
28 Fuel Injector
29 Oxygen Sensor
30 Engine Emissions
31 Fog Lamps
32 Headlamp (Right)
33 Rear Compartment Release
34 Parking Lamps
35 Fuel Pump
36 Headlamp (Left)
37 Spare
38 Spare
39 Spare
40 Spare
41 Spare
42 Spare
43 Fuse Puller
SYMBOL Air Conditioner Compressor Clutch Diode

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (2001 – 2003) – fuse box diagram

Buick Regal (2001 – 2003) – fuse box diagram

Year of production: 2001, 2002, 2003

Instrument Panel Fuse Block

Some fuses are located in a fuse block on the passenger’s side of the instrument panel.

Buick Regal mk4 - fuse box - instrument panel
Buick Regal mk4 – fuse box – instrument panel
Circuit Breakers Usage
TIRE RESET Tire Inflation Monitor Reset Button
PWR WINDOWS, PWR SUNROOF Power Windows, Power Sunroof
REAR DEFOG Rear Window Defogger
POWER SEATS Power Seat
Blank Not Used

 

Fuses Usage
PARK LOCK Ignition Key Solenoid
Blank Not Used
Blank Not Used
PCM, BCM, U/H RELAY Ignition Signal: Hot in Run and Start, Powertrain Control Module, Body Control Module, Underhood Relay
RADIO PREM. SOUND Remote Radio Premium Sound
POWER MIRRORS Power Mirrors
Blank Not Used
PANEL DIMMING Panel Dimming
Blank Not Used
IGN 0, CLUSTER, PCM, BCM Ignition Signal: Hot in Run, Unlock and Start, Cluster, Powertrain Control Module, Body Control Module
Blank Not Used
Blank Not Used
Blank Not Used
INADV POWER BUS
DOOR LOCKS Door Locks
TRAP ALERT Trap Alert
TAIL LAMPS, LIC LAMPS Taillamps, License Lamps
RADIO Radio
HEATED MIRROR Heated Mirrors
CRUISE Cruise Control
Blank Not Used
CLUSTER Instrument Panel Cluster
CIGAR LTR Cigarette Lighter, Auxiliary Power Connection (Power Drop)
STOP LAMPS Stoplamps
ONSTAR OnStar
FRT PARK LPS Parking Lamps
POWER DROP Auxiliary Power Connection (Power Drop): Hot in ACC and Run
CRANK SIGNAL, BCM, CLUSTER Crank Signal, Body Control Module, Cluster, Powertrain Control Module
HVAC Ignition Signal, Heating Ventilation Air Conditioning Control Head
BTSI PARK LOCK Shifter Lock Solenoid
AIR BAG Air Bag
BCM PWR Body Control Module
HAZARD Hazard Flashers
LH HEATED SEAT Driver’s Heated Seat
Blank Not Used
BCM ACC Ignition Signal: Hot in ACC and Run, Body Control Module
Blank Not Used
LOW BLOWER Low Blower
ABS Anti-Lock Brakes
TURN SIGNALS, CORN LPS Turn Signals, Cornering Lamps
RADIO, HVAC, RFA, CLUSTER Radio, Heating Ventilation Air Conditioning Head, Remote Keyless Entry, Cluster
HIGH BLOWER High Blower
RH HEATED SEAT Passenger’s Heated Seat
STRG WHL CONT Audio Steering Wheel Controls
WIPER Wipers

Underhood Fuse Block

Some fuses and relays are located in the underhood fuse block on the passenger’s side of the vehicle in the engine compartment.

Buick Regal mk4 - fuse box - engine compartment
Buick Regal mk4 – fuse box – engine compartment
Maxi Fuses Usage
1 Anti-Lock Brake System
2 Starter Solenoid
3 Power Seats, Rear Window Defogger, Heated Seats
4 High Blower, Hazard Flasher, Stoplamps, Power Mirror, Door Locks
5 Ignition Switch, BTS Shifter Lock Solenoid, Stoplamps, Anti-Lock Brake System, Turn Signals, Cluster, Air Bag, Daytime Running Lamps Module
6 Cooling Fan
7 Retained Accessory Power (RAP), Remote Keyless Entry, Data Link, Heating, Ventilation and Air Conditioning Head, Cluster, Radio, Cigarette Lighter
8 Ignition Switch, Wipers, Radio, Steering Wheel Controls, Body Control Module, Auxiliary Power (Power Drop), Power Windows, Sunroof, Heating Ventilation Air Conditioning Controls, Daytime Running Lamps, Rear Defog Relay

 

Mini Relays Usage
9 Cooling Fan 2
10 Cooling Fan 3
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Air Pump (Optional)
15 Not Used
16 Horn
17 Fog Lamps
18 Not Used
19 Fuel Pump

 

Mini Fuses Usage
20 Air Pump (Optional)
21 Generator
22  ECM
23 A/C Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
26 Transaxle
27 Horn
28 Fuel Injector
29 Oxygen Sensor
30 Engine Emissions
31 Fog Lamps
32 Headlamp (Right)
33 Rear Compartment Release
34 Parking Lamps
35 Fuel Pump
36 Headlamp (Left)
37 Spare
38 Spare
39 Spare
40 Spare
41 Spare
42 Spare
43 Fuse Puller
SYMBOL Air Conditioner Compressor Clutch Diode

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (2004) – fuse box diagram

Buick Regal (2004) – fuse box diagram

Year of production: 2004

Instrument Panel Fuse Block

Some fuses are located in a fuse block on the passenger’s side of the instrument panel.

Buick Regal mk4 - fuse box - instrument panel
Buick Regal mk4 – fuse box – instrument panel
Circuit Breakers Usage
TIRE RESET Tire Inflation Monitor Reset Button
PWR/WNDW PWR S/ROOF Power Windows, Power Sunroof
R/DEFOG Rear Window Defogger
PWR SEAT Power Seat
Blank Not Used

 

Fuses Usage
PRK/LCK Ignition Key Solenoid
Blank Not Used
Blank Not Used
PCM, BCM, U/H Ignition Signal: Hot in Run and Start, Powertrain Control Module, Body Control Module, Underhood Relay
RADIO PREM. SOUND Remote Radio Premium Sound
PWR MIR Power Mirrors
Blank Not Used
INT/ILLUM Panel Dimming
Blank Not Used
IGN 0: CLSTR, PCM & BCM Ignition Signal: Hot in Run, Unlock and Start, Cluster, Powertrain Control Module, Body Control Module
Blank Not Used
Blank Not Used
Blank Not Used
ACCY PWR BUS Interior Lamps
DR/ LCK Door Locks
Blank Not Used
R/LAMPS Taillamps, License Plate Lamps
Blank Not Used
CRUISE Cruise Control
Blank Not Used
CLSTR Instrument Panel Cluster
LTR Cigarette Lighter
STOP LAMPS Stoplamps
ONSTAR OnStar®
PRK/LGHT Parking Lamps
Blank Not Used
CRNK SIG, BCM, CLSTR Crank Signal, Body Control Module, Cluster, Powertrain Control Module
HVAC Ignition Signal, Heating, Ventilation and Air Conditioning Control Head
BTSI (REGAL) Shifter Lock Solenoid
AIR BAG Air Bag
BCM PWR Body Control Module
HAZRD Hazard Warning Flashers
LH HTD SEAT Driver’s Heated Seat
Blank Not Used
BCM ACCY Ignition Signal: Hot in ACCESSORY and RUN, Body Control Module
Blank Not Used
LOW BLWER Low Blower
ABS Anti-Lock Brakes
TRN SIG Turn Signals, Cornering Lamps
RADIO, HVAC, RFA, CLSTR ALDL Radio; Heating Ventilation, and Air Conditioning Head; Remote Keyless Entry, Cluster
HI BLWR High Blower
RH HTD SEAT Passenger’s Heated Seat
STR/WHL CNTRL Audio Steering Wheel Controls
WPR Windshield Wipers

 

Underhood Fuse Block

Some fuses and relays are located in the underhood fuse block on the passenger’s side of the vehicle in the engine compartment.

Buick regal mk4 - fuse box - engine compartment
Buick regal mk4 – fuse box – engine compartment
Fuses Usage
1 Anti-Lock Brake System
2 Starter Solenoid
3 Power Seats, Rear Window Defogger, Heated Seats
4 High Blower, Hazard Flasher, Stoplamps, Power Mirror, Door Locks
5 Ignition Switch, BTS Shifter Lock Solenoid, Stoplamps, Anti-Lock Brake System, Turn Signals, Cluster, Air Bag, Daytime Running Lamps Module
6 Cooling Fan
7 Retained Accessory Power (RAP), Remote Keyless Entry, Data Link, Heating, Ventilation and Air Conditioning Head, Cluster, Radio, Cigarette Lighter
8 Ignition Switch, Windshield Wipers, Radio, Steering Wheel Controls, Body Control Module, Power Windows, Sunroof; Heating, Ventilation and Air Conditioning Controls; Daytime Running Lamps, Rear Window Defogger Relay

 

Relays Usage
9 Cooling Fan 2
10 Cooling Fan 3
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Air Pump (Optional)
15 Not Used
16 Horn
17 Fog Lamps
18 Not Used
19 Fuel Pump

 

Fuses Usage
20 Not Used
21 Generator
22 Engine Control Module
23 Air Conditioner Compressor Clutch
24 Cooling Fan
25 Electronic Ignition
26 Transaxle
27 Horn
28 Fuel Injector
29 Oxygen Sensor
30 Engine Emissions
31 Fog Lamps
32 Right Headlamp
33 Rear Compartment Release
34 Parking Lamps
35 Fuel Pump
36 Left Headlamp
37 Not Used
38 Not Used
39 Not Used
40 Not Used
41 Not Used
42 Not Used
43 Not Used
SYMBOL Air Conditioner Compressor Clutch Diode

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Buick Regal (2010 – 2012) – fuse box diagram

Buick Regal (2010 – 2012) – fuse box diagram

Year of production: 2010, 2011, 2012

Engine Compartment Fuse Block

Buick Regal mk5 - fuse box - engine compartment
Buick Regal mk5 – fuse box – engine compartment
Fuses Usage
1 Transmission control module
2 Engine control module
3 Not Used
4 Not Used
5 Ignition/ Transmission control module/Engine control module
6 Windshield wiper
7 Not Used
8 Fuel Injection, Ignition System Even
9 Fuel Injection, Ignition System Odd
10 Engine control module
11 Oxygen sensor
12 Starter
13 Fuel system control module
14 Secondary Air Induction
15 Not Used
16 Vacuum Pump
17 Ignition, Airbag
18 Not Used
19 Not Used
20 Not Used
21 Rear power windows
22 Antilock Brake System Valve
23 Variable Effort Steering
24 Front power windows
25 Power outlets
26 Antilock Brake System Pump
27 Electric parking brake
28 Rear window defogger
29 Left-Hand Seat Lumbar
30 Right-Hand Seat Lumbar
31 Not Used
32 Body control module 6
33 Heated front seats
34 Sunroof
35 Infotainment system
36 Not Used
37 Right high-beam headlamp
38 Left high-beam headlamp
39 Not Used
40 Not Used
41 Vacuum pump
42 Radiator fan 1
43 Not Used
44 Headlamp Washer System (if equipped)
45 Radiator fan 2
46 Terminal 87/Main relay
47 Oxygen sensor
48 Fog lamps
49 Right-Hand Low Beam, High Intensity Discharge Headlamp
50 Left-Hand Low Beam, High Intensity Discharge Headlamp
51 Horn
52 Motor Indicator Lamp
53 Inside Rearview Mirror
54 Not Used
55 Power windows
56 Windshield washer
57 Not Used
58 Not Used
59 Secondary Air Induction
60 Heated mirrors
61 Not Used
62 Canister vent solenoid
63 Not Used
64 Not Used
65 Not Used
66 Not Used
67 Fuel system control module
68 Not Used
69 Battery sensor
70 Not Used
71 Not Used

 

Relays Usage
1 Not Used
2 Starter
3 Cooling Fan (LHU)
4 Front wiper (step 2)
5 Front Wiper (Step 1, Interval)
6 SAI Valve
7 Main relay
8 Not Used
9 Cooling Fan (LAF/LHU)
10 Cooling Fan (LAF)
11 Not Used
12 Cooling Fan (LHU)
13 Cooling Fan (LAF/LHU)
14 High Intensity Discharge Lamps
15 Ignition
16 Secondary AIR Pump
17 Window/Mirror defogger

Instrument Panel Fuse Block

The instrument panel fuse block is located in the instrument panel, on the driver side of the vehicle.

Buick Regal mk5 - fuse box - instrument panel
Buick Regal mk5 – fuse box – instrument panel
Item Usage
1 Suspension control module
2 Body control module 7
3 Body control module 5
4 Radio
5 Radio displays/ Parking assist/ Infotainment/Module tunnel control
6 Power Outlet 1
7 Power Outlet 2
8 Body control module 3
9 Body control module 4
10 Body control module 8
11 Front Heater Ventilation Air Conditioning/Blower
12 Right-Hand Power Front Seat
13 Left-Hand Power Front Seat
14 Diagnostic Link Connector
15 Airbag
16 Trunk Release
17 Heating Ventilation Air Conditioning Controller
18 Service fuse/ Logistics relay
19 Not Used
20 Automatic occupant sensing
21 Instrument cluster
22 Discrete Logic Ignition Switch
23 Body control module 1
24 Body control module 2
25 OnStar
26 Power Outlet, Trunk

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.