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Fuse box diagram (fuse layout), location and assignment of fuses and relays Chevrolet Express and GMC Savana (2003, 2004, 2005, 2006, 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.
Note
- 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.
| № | A | Protected Component |
|---|---|---|
| 1 | - | - |
| 2 | 10 | Outside Rearview Mirror Switch |
| 3 | 15 | Courtesy Lamp Relay |
| 4 | 10 | Left Rear Stop/Turn Signal |
| 5 | 10 | Cargo Unlock Relay |
| 6 | 10 | Right Rear Stop/Turn Signal |
| 7 | 10 | Driver Unlock Relay |
| 8 | 10 | Center High Mounted Stop Lamp (CHMSL), Cruise Control Module (CCM), Throttle Actuator Control Module (TCM (2006-2007)), Transmission Control Module (Diesel), Engine Control Module (Diesel) |
| 9 | 10 | HVAC Control Assembly, Air Temperature Actuator, HVAC Control Processor (2006-2007), Auxiliary Blower Motor Relays (2006-2007), Air/Mode Actuator (2006-2007) |
| 10 | 20 | HVAC Control Assembly, Vacuum Pump (Diesel) |
| 11 | 10 | Electronic Brake Control Module (EBCM), High Idle Switch (2006-2007), Traction Control Switch (2006-2007) |
| 12 | 30 | Rear Window Defogger Relay |
| 13 | 30 | Auxiliary Blower Motor Relays (Low/MED/High Speed) |
| 14 | 10 | Driver Turn Mirror |
| 15 | 20 | Door Lock Relay |
| 16 | 10 | Upfitter Park |
| 17 | - | - |
| 18 | 10 | Left Tail Lamp, License Lamp |
| 19 | 10 | Passengers Turn Mirror |
| 20 | 10 | Right Ttail Lamp |
| 21 | 15 | Trailer Park Lamp |
| 22 | 10 | Inflatable Restraint l/P Module Disable Switch, Front Park/Turn Signal Lamps, Front Marker Lamps |
| 23 | 50 | Upfitter Wiring Harness |
| 20 | Cooling Fan (SEO) (2003-2005) | |
| 60 | Electronic Brake Control Module (EBCM) (2006-2007) | |
| 24 | 50 | Auxiliary Relay (YF7) |
| 20 | Auxiliary Relay (SEO) | |
| CB1 | 25 | Power Window (Driver/Front Passenger) |
| R1 | Rear Window Defogger | |
| R2 | Front Passenger Lock Actuator, LR/RR Door Lock Actuators | |
| R3 | Driver/Front Passenger/Cargo Lock Actuators, LR/RR Door Lock Actuators | |
| R4 | Auxiliary Relay | |
| R5 | Courtesy Lamp | |
| R6 | Cargo Unlock | |
| R7 | Driver Unlock | |
| R8 | Park Lamp | |
| R9 | Window Residual Accessory Power | |
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Engine Compartment Fuse Box Diagram
The fuse block is located in the engine compartment on the driver’s side of the vehicle.
| № | A | Protected Component |
|---|---|---|
| 1 | 15 | Radio, Vehicle Communication Interface Module (VCIM (2003-2005)), Chime Module (2006-2007) |
| 2 | 20 | Gasoline: Powertrain Control Module (PCM) |
| 20 | Diesel: Engine Control Module (ECM), Transmission Control Module (TCM), Coolant Heater | |
| 3 | 10 | Trailer Stop/Turn Relay (Left) |
| 4 | 10 | Trailer Stop/Turn Relay (Right) |
| 5 | 10 | Back-Up Lamps Trailer or C405 (Cutaway) |
| 6 | 10 | Gasoline: Powertrain Control Module (PCM), Automatic Transmission, Body Control Module (BCM) |
| 10 | Diesel: Engine Control Module (ECM), Glow Plug Control Module (GPCM), Automatic Transmission, Body Control Module (BCM) | |
| 7 | 15 | Stop Lamp Switch |
| 8 | 20 | Rear Window Defogger, Heated Mirror |
| 9 | 10 | Right Daytime Running Lamp/Turn Signal |
| 10 | 10 | Left Daytime Running Lamp/Turn Signal |
| 11 | 15 | Body Control Module (BCM) |
| 12 | 20 | Fuel Pump Relay |
| 13 | 30 | Trailer Wiring Harness |
| 14 | 15 | Turn Signal Hazard Flasher Module |
| 15 | 15 | Horn Relay |
| 16 | 15 | Body Control Module (BCM) |
| 17 | 15 | Trailer Stop/Turn Relay (Left and Right) |
| 18 | 15 | Body Control Module (BCM) |
| 19 | 10 | Body Control Module (BCM) |
| 20 | 10 | Remote Control Door Lock Receiver (RCDLR) |
| 21 | 10 | 4.8L/5.3L/6.0L (Gasoline): Even Fuel Injectors, Even Ignition Coils |
| 10 | 4.3L (Gasoline): Even Fuel Injectors, Ignition Coil | |
| 22 | 10 | Stop Lamp Switch and A/C Relay |
| 23 | 15 | 4.8L/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 |
| 15 | 4.3L (Gasoline): Odd Fuel Injectors, Ignition Control Module, EVAP Canister Purge Solenoid, Mass Air Flow (MAF) Sensor, Park/Neutral Position (PNP) Switch | |
| 10 | Diesel: MAF/IAT Sensor, Park/Neutral Position (PNP) Switch | |
| 24 | 10 | Body Control Module (BCM) |
| 25 | 20 | Diesel: Fuel Heater |
| 26 | 10 | Inside Rearview Mirror |
| 27 | 10 | Crankcase, Powertrain Control Module (Gasoline), Engine Control Module (Diesel) |
| 28 | 10 | Brake Transmission Shift Interlock System |
| 29 | 20 | Auxiliary Power Outlet |
| 30 | 15 | Cigar Lighter, Data Link Connector (DLC) |
| 31 | 10 | Instrument Panel Cluster (IPC) |
| 32 | 10 | A/C Relay |
| 33 | 30 | Diesel: Engine Control Module (ECM) |
| 34 | 10 | EVAP Canister Vent Solenoid (Gasoline), Rear Fog Lamp Relay |
| 35 | 10 | Diesel: Cooling Fan Relay |
| 36 | 15 | Back-Up Lamps, Park/Neutral Position (PNP) Switch |
| 37 | 10 | Supplemental Inflatable Restraint System |
| 38 | 15 | Gasoline: Powertrain Control Module (PCM), Cruise Control Module (CCM), Throttle Actuator Control (TAC) Module, Steering WheelSpeed/Position Sensor |
| 10 | Diesel: Engine Control Module (ECM), Glow Plug Control Module (GPCM), Transmission Control Module | |
| 39 | 15 | Gasoline: Oxygen Sensor |
| 40 | 15 | Gasoline: Oxygen Sensor |
| 41 | 15 | Windshield Wipers Relay |
| 42 | 10 | Right Headlamp (Low Beam) |
| 43 | 10 | Left Headlamp (Low Beam) |
| 44 | 10 | Left Headlamp (High Beam) |
| 45 | 10 | Right Headlamp (High Beam ) |
| 46 | 10 | Body Control Module (BCM) |
| 47 | 25 | Windshield Wiper Motor |
| 48 | 60 | Electronic Brake Control Module (EBCM) |
| 49 | 40 | Starter Relay, Ignition Switch |
| 50 | 30 | Trailer Wiring Harness |
| 51 | 40 | Blower Motor Resistor |
| 52 | 40 | Ignition Switch |
| 53 | 10 | Diesel: Engine Control Module (ECM) |
| 54 | - | - |
| 55 | 125 | Fuse Block - Body |
| CB1 | 30 | Power Seat |
| R1 | Windshield Wiper | |
| R2 | Air Conditioning | |
| R3 | Rear Fog Lamp | |
| R4 | Headlamp (High Beam) | |
| R5 | Fuel Pump | |
| R6 | Headlamp (Low Beam) | |
| R7 | Horn | |
| R8 | Starter | |
| R9 | Diesel: Engine Control Module (ECM) | |
Auxiliary Fuse Box
| № | A | Circuit Breaker |
|---|---|---|
| 2 | 10 | Dome Fluorescent Work Lamps |
| 3 | 15 | Access Panel Relays |
| 4 | - | - |
| 1 | Access Panel Latches (Left Side Rear) | |
| 5 | Access Panel Latches (Left Side Front) | |
| 6 | Access Panel Latches (Right Side) | |
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