Chevrolet Express and GMC Savana (2003-2007) Fuse Diagram

Fuse box diagram (fuse layout), location and assignment of fuses and relays Chevrolet Express and GMC Savana (2003, 2004, 2005, 2006, 2007).

Chevrolet Express (2003-2007)

GMC Savana (2003-2007)

Checking and Replacing Fuses

The vehicle has fuses and circuit breakers to protect against electrical system overload.

When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems.

Fuses and circuit breakers protect power devices in the vehicle.

Replace a bad fuse with a new one of the identical size and rating.

If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some features of the vehicle that is not needed to use and replace it as soon as possible.

Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating.


  • Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
  • Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. This can cause damage to the electrical system and fire.
  • Never replace a broken fuse with anything other than a new fuse. Use always an intact fuse of the same color.
  • If a fuse blows again contact a qualified service center.

Floor Console Fuse Box Diagram

The floor console fuse block is located under the driver seat.

Floor Console Fuse Box Diagram

AProtected Component
1- -
210Outside Rearview Mirror Switch
315Courtesy Lamp Relay
410Left Rear Stop/Turn Signal
510Cargo Unlock Relay
610Right Rear Stop/Turn Signal
710Driver Unlock Relay
810Center High Mounted Stop Lamp (CHMSL), Cruise Control Module (CCM), Throttle Actuator Control Module (TCM (2006-2007)), Transmission Control Module (Diesel), Engine Control Module (Diesel)
910HVAC Control Assembly, Air Temperature Actuator, HVAC Control Processor (2006-2007), Auxiliary Blower Motor Relays (2006-2007), Air/Mode Actuator (2006-2007)
1020HVAC Control Assembly, Vacuum Pump (Diesel)
1110Electronic Brake Control Module (EBCM), High Idle Switch (2006-2007), Traction Control Switch (2006-2007)
1230Rear Window Defogger Relay
1330Auxiliary Blower Motor Relays (Low/MED/High Speed) 
1410Driver Turn Mirror
1520Door Lock Relay
1610Upfitter Park
17- -
1810Left Tail Lamp, License Lamp
1910Passengers Turn Mirror
2010Right Ttail Lamp
2115Trailer Park Lamp
2210Inflatable Restraint l/P Module Disable Switch, Front Park/Turn Signal Lamps, Front Marker Lamps
2350Upfitter Wiring Harness
20Cooling Fan (SEO) (2003-2005)
60Electronic Brake Control Module (EBCM) (2006-2007)
2450Auxiliary Relay (YF7)
20Auxiliary Relay (SEO)
Circuit Breaker
CB125Power Window (Driver/Front Passenger)
R1Rear Window Defogger
R2Front Passenger Lock Actuator, LR/RR Door Lock Actuators
R3Driver/Front Passenger/Cargo Lock Actuators, LR/RR Door Lock Actuators 
R4Auxiliary Relay
R5Courtesy Lamp
R6Cargo Unlock
R7Driver Unlock 
R8Park Lamp
R9Window Residual Accessory Power


Engine Compartment Fuse Box Diagram

The fuse block is located in the engine compartment on the driver’s side of the vehicle.

Engine Compartment Fuse Box Diagram

AProtected Component
115Radio, Vehicle Communication Interface Module (VCIM (2003-2005)), Chime Module (2006-2007)
220Gasoline: Powertrain Control Module (PCM)
20Diesel: Engine Control Module (ECM), Transmission Control Module (TCM), Coolant Heater
310Trailer Stop/Turn Relay (Left)
410Trailer Stop/Turn Relay (Right)
510Back-Up Lamps Trailer or C405 (Cutaway)
610Gasoline: Powertrain Control Module (PCM), Automatic Transmission, Body Control Module (BCM)
10Diesel: Engine Control Module (ECM), Glow Plug Control Module (GPCM), Automatic Transmission, Body Control Module (BCM)
715Stop Lamp Switch
820Rear Window Defogger, Heated Mirror
910Right Daytime Running Lamp/Turn Signal
1010Left Daytime Running Lamp/Turn Signal 
1115Body Control Module (BCM)
1220Fuel Pump Relay 
1330Trailer Wiring Harness
1415Turn Signal Hazard Flasher Module
1515Horn Relay
1615Body Control Module (BCM)
1715Trailer Stop/Turn Relay (Left and Right)
1815Body Control Module (BCM)
1910Body Control Module (BCM)
2010Remote Control Door Lock Receiver (RCDLR)
21104.8L/5.3L/6.0L (Gasoline): Even Fuel Injectors, Even Ignition Coils
104.3L (Gasoline): Even Fuel Injectors, Ignition Coil
2210Stop Lamp Switch and A/C Relay
23154.8L/5.3L/6.0L (Gasoline): Odd Fuel Injectors, Odd Ignition Coils, EVAP Canister Purge Solenoid, Mass Air Flow (MAF) Sensor, Park/Neutral Position (PNP) Switch
154.3L (Gasoline): Odd Fuel Injectors, Ignition Control Module, EVAP Canister Purge Solenoid, Mass Air Flow (MAF) Sensor, Park/Neutral Position (PNP) Switch
10Diesel: MAF/IAT Sensor, Park/Neutral Position (PNP) Switch
2410Body Control Module (BCM)
2520Diesel: Fuel Heater 
2610Inside Rearview Mirror
2710Crankcase, Powertrain Control Module (Gasoline), Engine Control Module (Diesel)
2810Brake Transmission Shift Interlock System
2920Auxiliary Power Outlet
3015Cigar Lighter, Data Link Connector (DLC)
3110Instrument Panel Cluster (IPC)
3210A/C Relay
3330Diesel: Engine Control Module (ECM)
3410EVAP Canister Vent Solenoid (Gasoline), Rear Fog Lamp Relay 
3510Diesel: Cooling Fan Relay
3615Back-Up Lamps, Park/Neutral Position (PNP) Switch
3710Supplemental Inflatable Restraint System
3815Gasoline: Powertrain Control Module (PCM), Cruise Control Module (CCM), Throttle Actuator Control (TAC) Module, Steering WheelSpeed/Position Sensor
10Diesel: Engine Control Module (ECM), Glow Plug Control Module (GPCM), Transmission Control Module 
3915Gasoline: Oxygen Sensor
4015Gasoline: Oxygen Sensor
4115Windshield Wipers Relay
4210Right Headlamp (Low Beam)
4310Left Headlamp (Low Beam)
4410Left Headlamp (High Beam)
4510Right Headlamp (High Beam )
4610Body Control Module (BCM)
4725Windshield Wiper Motor
4860Electronic Brake Control Module (EBCM)
4940Starter Relay, Ignition Switch
5030Trailer Wiring Harness
5140Blower Motor Resistor 
5240Ignition Switch
5310Diesel: Engine Control Module (ECM)
54- -
55125Fuse Block - Body
Circuit Breaker
CB130Power Seat
R1Windshield Wiper
R2Air Conditioning
R3Rear Fog Lamp
R4Headlamp (High Beam)
R5Fuel Pump 
R6Headlamp (Low Beam)
R9Diesel: Engine Control Module (ECM)

Auxiliary Fuse Box

Auxiliary Fuse Box

ACircuit Breaker
210Dome Fluorescent Work Lamps
315Access Panel Relays
4- -
1Access Panel Latches (Left Side Rear)
5Access Panel Latches (Left Side Front)
6Access Panel Latches (Right Side)