2003 Chevrolet Suburban fuse box diagram
The 2003 Suburban 9th generation (also known as "GMT800", "GMT830") has 3 different fuse boxes:
Underhood Fuse Block diagram
Instrument Panel Fuse Block diagram
Center Instrument Panel Fuse Block diagram
Underhood Fuse Block
| Type | No. | Description | |
|---|---|---|---|
Fuse FMX/JCase 50A | 1 | Auxiliary Power [Single Battery and Diesels Only]/Dual Battery [TP2] Do not install fuse. | |
Fuse FMX/JCase 50A | 3 | Mid Bussed Electrical Center Power Feed, Front Seats, Right Doors | |
Fuse FMX/JCase 40A | 4 | Front Climate Control Fan | |
Fuse FMX/JCase 50A | 5 | Left Bussed Electrical Center, Door Modules, Door Locks, Auxiliary Power Outlet-Rear Cargo Area and Instrument Panel | |
Fuse FMX/JCase 30A | 6 | Accessory Power/Trailer Wiring Brake Feed | |
Fuse FMX/JCase 60A | 7 | Anti-Lock Brakes | |
Fuse FMX/JCase 60A | 8 | Vehicle Stability | |
Fuse FMX/JCase 40A | 9 | Ignition Power | |
Fuse FMX/JCase 40A | 11 | Ignition Power | |
Fuse FMX/JCase 50A | 12 | Left Bussed Electrical Center, Left Doors, Truck Body Controller, Flasher Module | |
Fuse MINI | 13 | Parking Lamps Trailer Wiring | |
Fuse MINI | 14 | Right Rear Parking and Sidemarker Lamps | |
Fuse MINI | 15 | Left Rear Parking and Sidemarker Lamps | |
Fuse MINI 10A | 16 | Interior Lamps | |
Fuse MINI 25A | 17 | Stoplamps | |
Fuse MINI 10A | 18 | Truck Body Controller Battery Feed | |
Fuse MINI 25A | 19 | Sunroof | |
Fuse MINI 30A | 20 | Off-Road Lamps | |
Fuse MINI 15A | 21 | Vent Solenoid Canister/QUADRASTEERTM Module Power | |
Fuse MINI 30A | 22 | Rear Climate Control | |
Fuse MINI 20A | 23 | Auxiliary Power Outlet - Console | |
Fuse MINI 15A | 24 | Powertrain Control Module | |
Fuse MINI 15A | 25 | Electronic Throttle Control, Electronic Brake Controller | |
Fuse MINI 15A | 28 | Instrument Panel Cluster, Air Conditioning Relay, Turn Signal/Hazard Switch, Starter Relay | |
Fuse MINI 30A | 29 | Ride Control | |
Fuse MINI 10A | 30 | Backup Lamps Trailer Wiring | |
Fuse MINI 20A | 31 | Powertrain Control Module, Fuel Pump | |
Fuse MINI 15A | 33 | Back-up Lamps, Automatic Transmission Shift Lock Control System | |
Fuse MINI 30A | 34 | Rear Window Defogger | |
Fuse MINI 15A | 36 | Supplemental Inflatable Restraint System | |
Fuse MINI 20A | 37 | Front Parking Lamps, Sidemarker Lamps | |
Fuse MINI 10A | 38 | Rear Defog Relay | |
Fuse MINI 10A | 39 | Truck Body Controller Ignition | |
Fuse MINI 10A | 40 | High Beam Headlamp-Left | |
Fuse MINI 10A | 42 | Daytime Running Lamps | |
Fuse MINI 10A | 43 | Instrument Panel Cluster/Driver Information Center | |
Fuse MINI 10A | 44 | Climate Control Controller | |
Fuse MINI 15A | 45 | Cigarette Lighter | |
Fuse MINI 10A | 46 | High Beam Headlamp-Right | |
Fuse MINI 10A | 47 | Air Conditioning Compressor | |
Fuse MINI 25A | 48 | Rear Wiper/Washer | |
Fuse MINI 15A | 50 | Audio System | |
Fuse MINI 15A | 51 | Mid Bussed Electrical Center, HomeLink, Rear Heated Seats | |
Fuse MINI 10A | 52 | Headlamp Low Beam-Left | |
Fuse MINI 10A | 53 | Brake Transmission Shift Interlock System | |
Fuse MINI 10A | 54 | Starting System | |
Fuse MINI 10A | 55 | Headlamp Low Beam-Right | |
Fuse MINI 15A | 56 | Fog Lamps | |
Fuse MINI 15A | 57 | Windshield and Rear Window Washer Pump | |
Fuse MINI 15A | 58 | OnStar/Rear Seat Entertainment | |
Fuse MINI 30A | 59 | Radio Amplifier | |
Fuse MINI 25A | 61 | Horn Fuse | |
Fuse MINI 15A | 62 | Electric Adjustable Pedals | |
Fuse MINI 30A | 63 | All-Wheel Drive Module | |
Fuse MINI 15A | 64 | Supplemental Brake Assist | |
Fuse MIDI | 65 | Gasoline Accessory Power | |
Relay | R1 | Parking Lamps Relay | |
Relay | R2 | Starter Relay | |
Relay | R3 | Ignition Relay | |
Relay | R4 | Fuel Pump (Relay) | |
Relay | R5 | Headlamp High Beam Relay | |
Relay | R6 | Daytime Running Lamps (Relay) | |
Relay | R7 | Headlamp Low Beam Relay | |
Relay | R8 | Air Conditioning Compressor Relay | |
Relay | R9 | Fog Lamp Relay | |
Relay | R10 | Horn Relay | |
Relay | R11 | Windshield and Rear Window Washer Pump Relay |
Instrument Panel Fuse Block
| Type | Description | |
|---|---|---|
Fuse MINI | 1 Rear Window Wiper Switch | |
Fuse MINI | 2 Special Equipment Option Accessory | |
Fuse MINI | 3 Windshield Wipers | |
Fuse MINI | 4 Truck Body Controller Accessory | |
Fuse MINI | 5 Ignition, Heated Seats | |
Fuse MINI | 6 Four-Wheel Drive System, Auxiliary Battery | |
Fuse MINI | 7 Climate Control System | |
Fuse MINI | 8 Inside Rearview Mirror, Climate Control System | |
Fuse MINI | 9 Cruise Control | |
Fuse MINI | 10 Anti-Lock Brake System | |
Fuse MINI | 12 PCM, TCM | |
Fuse MINI | 13 Truck Body Controller | |
Fuse MINI | 14 Vehicle and Trailer High Mounted Stoplamp | |
Fuse MINI | 15 Left Turn Signal/Stop Trailer | |
Fuse MINI | 16 Left Turn Signals and Sidemarkers | |
Fuse MINI | 17 Vehicle Stoplamps, Brake Module, Electronic Throttle Control Module | |
Fuse MINI | 18 Right Turn Signal/Stop Trailer | |
Fuse MINI | 19 Right Turn Signals and Sidemarkers | |
Fuse MINI | 20 Driver Door Module | |
Fuse MINI | 21 Rear Cargo Area Power Outlets | |
Fuse MINI | 22 Power Door Lock System | |
Fuse MINI | 23 Rear Electronic Climate Control | |
Fuse MINI | 24 Truck Body Controller | |
Fuse MINI | 25 Flasher Module | |
Fuse MINI | 26 Truck Body Controller | |
Fuse MINI | 27 Truck Body Controller | |
Circuit breaker MAXI | 28 Left Power Window | |
Connector | CONNECTOR1 Driver's Door Harness Connection | |
Connector | CONNECTOR2 Harness Connector | |
Relay | R1 Power Door Lock Relay, Lock Function | |
Relay | R2 Power Door Lock Relay, Unlock Function | |
Relay | R3 Rear Fog Lamp [Export Only] | |
Relay | R4 Power Door Lock Relay (Driver's Door Unlock Function) |
Center Instrument Panel Fuse Block
| Type | Description | |
|---|---|---|
Circuit breaker ATO | CB 1 Driver and Passenger Seat Module Circuit Breaker | |
Circuit breaker ATO | CB 2 Right Power Window Circuit Breaker | |
Connector | Connector 1 Special Equipment Option | |
Connector | Connector 2 Trailer Brake Wiring | |
Connector | Connector 3 Upfitter (Not Used) | |
Connector | Connector 4 Ride Control Harness Connection | |
Connector | Connector 5 Headliner Wiring Connector | |
Connector | Connector 6 Body Wiring Connector | |
Connector | Connector 7 Headliner Wiring Connector 1 | |
Connector | Connector 8 Infotainment Harness Connection | |
Relay | R1 Rear Defogger Relay |
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