Table of Contents
In 2003, the Chevrolet Express and GMC Savana received a refreshed design, bringing them in line with the GMT800 light-truck platform and introducing new LS-series engines. For 2004, GM added the StabiliTrak vehicle stability enhancement system to passenger van models. Below is a detailed breakdown of the fuse box diagrams and power distribution centers for the first-generation restyled GMC Savana (GM GMT600 / GMT610 platform) model years 2003, 2004, 2005, 2006, and 2007.
Fuses for the auxiliary power outlets ("Cigarette Lighter") and the fuel pump are highlighted in bold.
Engine Compartment Fuse Block
Located on the driver’s side of the engine compartment, beneath the protective plastic cover.
2006–2007 Model Years
Engine compartment fuse box assignment for 2006 and 2007 model year vehicles.
| Diagram | |
|---|---|
|
|
| No. | Assignment |
| 53 | Windshield Wiper Relay |
| 54 | Air Conditioning (A/C) Clutch Relay |
| 55 | Spare (Gasoline) / Rear Fog Lamp Relay (Diesel) |
| 56 | High-Beam Headlamps |
| 57 | GMC Savana Fuel Pump Relay |
| 58 | Low-Beam Headlamps |
| 59 | Horn Relay |
| SPARE (G), ECM (D) |
Spare (Gasoline) / Engine Control Module (Diesel) |
| STRTR | Starter Relay |
| PWR SEAT | Power Seat Circuit Breaker |
| 1 | Radio Battery Constant Supply |
| 2 |
|
| 3 | Left Rear Turn Signal Lamp |
| 4 | Right Rear Turn Signal Lamp |
| 5 | Trailer Wiring Harness Backup Lamps |
| 6 | Ignition 0 Switch Power |
| 7 | Stop Lamps |
| 8 | Right Rear Defogger / Heated Mirror |
| 9 | Right Daytime Running Lamp (DRL) / Turn Signal |
| 10 | Left Daytime Running Lamp (DRL) / Turn Signal |
| 11 | Body Control Module (BCM) #4 |
| 12 | GMC Savana Fuel Pump Fuse |
| 13 | Trailer Wiring Feed |
| 14 | Hazard Flasher Switch Feed |
| 15 | Horn |
| 16 | Body Control Module (BCM) #3 |
| 17 | Trailer Stop / Turn Signals |
| 18 | Body Control Module (BCM) #2 |
| 19 | Body Control Module (BCM) #1 |
| 20 | Remote Function Actuator (Keyless Entry) |
| 21 | Engine Control #2 (Gasoline) / Spare (Diesel) |
| 22 | Ignition E Circuit |
| 23 | Engine Control #1 |
| 24 | Body Control Module (BCM) Ignition 1 |
| 25 | Spare (Gasoline) / Fuel Heater (Diesel) |
| 26 | Electrochromic Inside Rearview Mirror / Rear Park Assist |
| 27 | Crankcase Ventilation / Emissions Circuit |
| 28 | Brake Transmission Shift Interlock (BTSI) Solenoid |
| 29 | Auxiliary 12V Power Outlets / GMC Savana Cigarette Lighter Fuse |
| 30 | |
| 31 | Instrument Panel Cluster (IPC) |
| 32 | Air Conditioning (A/C) System |
| 33 | Spare (Gasoline) / Engine Control Module (Diesel) |
| 34 | EVAP Canister Vent Solenoid (Gasoline) / Rear Fog Lamps (Diesel) |
| 35 | Supplemental Inflatable Restraint (Airbag) Module |
| 36 | Brake Transmission Shift Interlock (BTSI) / Back-Up Lamps |
| 37 | Supplemental Inflatable Restraint (Airbag) Module |
| 38 | Powertrain Control Module (PCM) Ignition 1 (Gasoline) / Engine Control Module (ECM) / Transmission Control Module (TCM) / Glow Plug Control Module Ignition 1 (Diesel) |
| 39 | Heated Oxygen Sensor (HO2S) Bank 2 (Gasoline) / Spare (Diesel) |
| 40 | Heated Oxygen Sensor (HO2S) Bank 1 |
| 41 | Windshield Wiper System |
| 42 | Right Low-Beam Headlamp |
| 43 | Left Low-Beam Headlamp |
| 44 | Left High-Beam Headlamp |
| 45 | Right High-Beam Headlamp |
| 46 |
|
| 47 | Windshield Wiper Motor |
| 48 | Anti-Lock Brake System (ABS) / StabiliTrak (VSES) Module |
| 49 | Ignition A Circuit |
| 50 | Trailer Brake Controller / Wiring |
| 51 | HVAC Blower Motor |
| 52 | Ignition B Circuit |
| 63 | Spare (Gasoline) / Engine Control Module (ECM) Actuators (Diesel) |
| 64 | Spare |
2003–2005 Model Years
Engine compartment fuse box assignment for 2003, 2004, and 2005 model year vehicles.
| Diagram | |
|---|---|
|
|
| No. | Assignment |
| 53 | Windshield Wiper Relay |
| 54 | Air Conditioning (A/C) Clutch Relay |
| 55 | Spare |
| 56 | High-Beam Headlamps |
| 57 | Fuel Pump Relay |
| 58 | Low-Beam Headlamps |
| 59 | Horn Relay |
| 61 | Starter Relay |
| 62 | Spare |
| 60 | Power Seat Circuit Breaker |
| 1 | Radio Battery Constant Supply |
| 2 | Powertrain Control Module (PCM) Battery Supply |
| 3 | Left Rear Turn Signal Lamp |
| 4 | Right Rear Turn Signal Lamp |
| 5 | Trailer Wiring Backup Lamps |
| 6 | Ignition 0 Switch Power |
| 7 | Stop Lamps |
| 8 | Right Rear Defogger / Heated Mirror |
| 9 | Right Daytime Running Lamp (DRL) / Turn Signal |
| 10 | Left Daytime Running Lamp (DRL) / Turn Signal |
| 11 | Body Control Module (BCM) #4 |
| 12 | Fuel Pump Fuse |
| 13 | Trailer Wiring Feed |
| 14 | Hazard Flasher Switch Feed |
| 15 | Horn |
| 16 | Body Control Module (BCM) #3 |
| 17 | Trailer Stop / Turn Signals |
| 18 | Body Control Module (BCM) #2 |
| 19 | Body Control Module (BCM) #1 |
| 20 | Remote Function Actuator (Keyless Entry) |
| 21 | Engine Control #2 |
| 22 | Ignition E Circuit |
| 23 | Engine Control #1 |
| 24 |
|
| 25 | Spare |
| 26 | Rear Park Assist (RPA) / Inside Rearview Mirror |
| 27 | Crankcase Ventilation / Emissions Circuit |
| 28 | Brake Transmission Shift Interlock (BTSI) System |
| 29 |
|
| 30 | |
| 31 | Instrument Panel Cluster (IPC) |
| 32 | Air Conditioning (A/C) System |
| 33 | Spare |
| 34 | EVAP Canister Vent Solenoid |
| 35 | Spare |
| 36 | Back-Up Lamps |
| 37 | Supplemental Inflatable Restraint (Airbag) System Switch |
| 38 |
|
| 39 | Heated Oxygen Sensors (HO2S) |
| 40 | |
| 41 | Windshield Wiper System |
| 42 | Right Low-Beam Headlamp |
| 44 | Left High-Beam Headlamp |
| 45 | Right High-Beam Headlamp |
| 46 | Body Control Module (BCM) Accessory Power |
| 47 | Windshield Wiper Motor |
| 48 | Electronic Brake Control Module (EBCM / ABS) |
| 49 | Ignition A Circuit |
| 50 | Trailer Wiring Feed |
| 51 | HVAC Blower Motor |
| 52 | Ignition B Circuit |
| 63 | Spare |
| 64 | Spare |
Instrument Panel Fuse Block
Located in the interior driver's compartment, under the driver’s seat pedestal.
General view of the GMC Savana interior instrument panel fuse box.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | Amps |
| R1 | Rear Window Defogger Relay | |
| R2 | Front Passenger & Rear Side Door Lock Actuators Relay | |
| R3 | Driver, Passenger & Rear Cargo Door Lock Actuators Relay | |
| R4 | Auxiliary Equipment Relay | |
| R5 | Courtesy Lamp Relay | |
| R6 | Cargo Door Unlock Relay | |
| R7 | Driver Door Unlock Relay | |
| R8 | Parking Lamp Relay | |
| R9 | Retained Accessory Power (RAP) Power Windows Relay | |
| CB1 | Power Windows Circuit Breaker | 25 A |
| 1 | Not Used | — |
| 2 | Power Mirror Switch | 10 A |
| 3 | Courtesy Lamp Relay Coil | 15 A |
| 4 | Left Rear Stop / Turn Signal Lamp | 10 A |
| 5 | Rear Hatch / Trunk Unlock Relay | 10 A |
| 6 | Right Rear Stop / Turn Signal Lamp | 10 A |
| 7 | Driver Door Unlock Relay | 10 A |
| 8 |
|
10 A |
| 9 |
|
10 A |
| 10 | HVAC Control Assembly / Vacuum Pump (Diesel) | 20 A |
| 11 |
|
10 A |
| 12 | Rear Window Defogger Relay Switch | 30 A |
| 13 | Auxiliary Blower Motor Relays (Low / Med / High Speed) | 30 A |
| 14 | Driver Side Heated / Signal Mirror | 10 A |
| 15 | Power Door Lock Relays | 20 A |
| 16 | Upfitter Parking Lamps Circuit | 10 A |
| 17 | Not Used | — |
| 18 | Left Tail Lamp & License Plate Lamp | 10 A |
| 19 | Passenger Side Heated / Signal Mirror | 10 A |
| 20 | Right Tail Lamp | 10 A |
| 21 | Trailer Wiring Parking Lamps | 15 A |
| 22 | Supplemental Inflatable Restraint (Airbag) Cutoff Switch, Front Park / Turn Signal / Marker Lamps | 10 A |
| 23 | Upfitter Wiring Harness Feed | 50 A |
| 2003–2005: Auxiliary Engine Cooling Fan (SEO) | 20 A | |
| 2006–2007: Electronic Brake Control Module (EBCM / ABS) Supply | 60 A | |
| 24 | YF7 Commercial Upfitter Package: Auxiliary Relay | 50 A |
| SEO Special Equipment Option: Auxiliary Relay | 20 A | |