Table of Contents
In this article, we provide a detailed overview of the fuse box diagrams for the first-generation Buick Terraza: model years 2004, 2005, 2006, and 2007.
Fuse No. 2 in the engine compartment fuse block supplies power to the fuel pump module.
Engine Compartment Fuse Block
Located on the passenger side, beneath the protective plastic cover.
Overview of the fuse block.
| Diagram | |
|---|---|
|
|
| No. | Description |
| RUN RLY | Ignition Run Relay |
| LO BEAM | Low-Beam Headlamp Relay |
| FUEL PUMP | Fuel Pump Relay |
| HORN | Horn Relay |
| AC/CLTCH | A/C Compressor Clutch Relay |
| HI BEAM | High-Beam Headlamp Relay |
| PWR/TRN | Powertrain Relay |
| WPR2 | Windshield Wiper 2 Relay |
| WPR1 | Windshield Wiper 1 Relay |
| FAN 1 | Cooling Fan 1 Relay |
| CRNK | Crank Relay |
| IGN MAIN | Main Ignition Relay |
| FAN2 | Cooling Fan 2 Relay |
| FAN3 | Cooling Fan 3 Relay |
| BLANK | Not Used |
| 1 | Right High-Beam Headlamp |
| 2 | Fuel Pump Module |
| 3 | Diode |
| 4 | Left High-Beam Headlamp |
| 5 | Not Used |
| 6 | A/C Compressor Clutch |
| 7 | Horn |
| 8 | Left Low-Beam Headlamp |
| 9 | Powertrain Control Module (PCM), Electronic Throttle Control (ETC) |
| 10 | Not Used |
| 11 | Transmission Solenoids |
| 12 | Right Low-Beam Headlamp |
| 13 | Anti-lock Brake System (ABS) |
| 14 |
|
| 15 | Electronic Ignition System |
| 16 | Fuel Injectors |
| 17 | Climate Control System, Rear Parking Assist (RPA), Cruise Control System |
| 18 | Electronic Throttle Control (ETC) |
| 19 | Engine Sensors, Evaporative Emissions (EVAP) System |
| 20 | Airbag System Module |
| 21 | Not Used |
| 22 | 2004-2005: Emissions Control Unit, All-Wheel Drive (AWD) |
| 2006-2007: Not Used | |
| 23 | Auxiliary Power Outlets |
| 24 | Front Windshield Washer |
| 25 | AC/DC Power Inverter |
| 26 | Rear HVAC Blower Motor |
| 27 | Front HVAC Blower Motor |
| 28 | Front Windshield Wipers |
| PLR | Fuse Puller |
| J29 | Cooling Fan 1 |
| J30 | Starter Solenoid |
| J31 | ABS Pump Motor |
| J32 | Not Used |
| J33 | Cooling Fan 2 |
| J34 | Front Blower Motor - High Speed |
| J35 | Main Battery 3 |
| J36 | Rear Window Defogger |
| J37 | Main Battery 2 |
| J38 | 2004-2005: Main Battery 1 |
| 2006-2007: Spare | |
Instrument Panel Fuse Block
Located on the passenger side, behind the interior trim panel.
Example of access to the fuse block.
| Diagram | |
|---|---|
|
|
| No. | Description |
| PLR | Fuse Puller |
| CB31 | Power Seats |
| CB32 | Power Windows |
| R26 | Not Used |
| R27 | Not Used |
| R28 | Parking Lamps, Taillamps |
| R29 | Retained Accessory Power (RAP) Relay |
| R30 | Rear Window Defogger Relay |
| 1 | Liftgate, Power Door Locks |
| 2 | Electronic Level Control (ELC) |
| 3 | Rear Window Wiper |
| 4 | DVD Player and Audio System |
| 5 | Interior Lamps |
| 6 | OnStar System |
| 7 | Remote Keyless Entry (RKE) System |
| 8 | Instrument Cluster, Heating, Ventilation, and Air Conditioning (HVAC) |
| 9 | Cruise Control Switches |
| 10 | Steering Wheel Controls Illumination |
| 11 | Power Mirrors |
| 12 | Stoplamps and Turn Signal Lamps |
| 13 | Heated Seat Module |
| 14 | Not Used |
| 15 | Electronic Level Control (ELC) |
| 16 | Heated Mirrors |
| 17 | Center High-Mounted Stoplamp (CHMSL), Backup Lamps |
| 18 | Not Used |
| 19 | EVAP Canister Vent Solenoid |
| 20 | Parking Lamps |
| 21 | Power Sliding Door |
| 22 | Not Used |
| 23 | Not Used |
| 24 | Left Power Sliding Door |
| 25 | Right Power Sliding Door |
