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Fuse box diagram (fuse layout), location and assignment of fuses and relays Dodge Ram 1500, 2500, 3500 (2002, 2003, 2004, 2005).
Checking and Replacing Fuses
Fuses protect the car’s electrical systems from short circuits. To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.
Fuses of the same amperage can be temporarily borrowed from another fuse location if a fuse goes out. Replace the fuse as soon as possible.
Note
- Disconnect the battery negative (-) cables from the right and left batteries before removing the fuse box cover.
- When replacing a blown fuse, it is important to use only a fuse having the correct amperage rating. The use of a fuse with a rating other than indicated may result in a dangerous electrical system overload.
- If a properly rated fuse continues to blow, it indicates a problem in the circuit that must be corrected.
Engine Compartment Fuse Box Diagram
Your vehicle is equipped with a fuse and relay center located in the engine compartment near the battery. Located on the underside of the cover is a label that identifies each component.
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| № | A | Circuit Protected |
|---|---|---|
| 1 | 40 | 2002-2004: Trailer Tow Connector (2002-2003), Electric Brake Provision |
| 30 | 2005: Electric Brake Provision | |
| 2 | 30 | Gasoline: Auto Shut Down Relay |
| 3 | 30 | Ignition Switch (Run A38 (Integrated Power Module)) |
| 4 | 40 | Ignition Switch (Run C1 (Blower Motor)) |
| 5 | 40 | 2002-2004: Transmission Control Relay |
| 20 | 2005: Transmission Control Relay, Reverse Lockout Solenoid (SRT (Manual Transmission)) | |
| 6 | 40 | Controller Antilock Brake (ABS (AWAL/RWAL)) |
| 7 | 50 | Power Seat Switch - Driver, Power Seat Switch - Passenger, Passenger Lumbar Switch (2002-2004 - Standard Cab) |
| 8 | 30 | Wiper High/Low Relay, Wiper On/Off Relay |
| 9 | 40 | Ignition Switch (Run ACC F1 (Circuit Breaker (25A): Power Window)) |
| 10 | 40 | Ignition Switch (Run ACC A31) |
| 11 | 30 | Front Control Module |
| 12 | - | 2002: - |
| 30 | 2003-2005 (Gasoline): Condenser Fan Relay | |
| 40 | 2003-2005 (Diesel): Fuel Heater Relay | |
| 13 | 30 | Front Control Module |
| 14 | 30 | Starter Motor Relay |
| 15 | 50 | Park Lamp Relay |
| 16 | 10 | Air Conditioner Compressor Clutch Relay |
| 17 | 15 | 2002-2004: Glove Box Lamp and Switch (2002-2003), Driver Door Module (2002-2003 (except Base)), Compass/Mini Trip Computer (except Base), Dome Lamp (2002-2003), Overhead Map/Reading Lamp (2002-2003 (except Base)), Center High Mounted Stop Lamp (2002-2003), Cargo Lamp (2002-2003), Fuel Pump Relay (2003-2004), Sentry Key Immobilizer Module (2004) |
| 20 | 2005 (Gasoline): Fuel Pump Relay | |
| 18 | 15 | Cluster, Underhood Lamp, Data Link Connector, Radio |
| 19 | 10 | 2002-2003: Sentry Key Immobilizer Module, Powertrain Control Module |
| 20 | 2004-2005: Trailer Tow Connector | |
| 20 | 25 | Ignition Switch (Run-Start A21, Start A41, Off-Run-Start A51 (Cluster, Powertrain Control Module, Integrated Power Module, Push Button Starter Switch)) |
| 21 | 20 | Audio Amplifier |
| 22 | 20 | Cluster |
| 23 | - | 2002-2003: - |
| 15 | 2004-2005: Powertrain Control Module, Electronic Overhead Module, Sentry Key Immobilizer Module | |
| 24 | 15 | Stop Lamp Switch |
| 25 | 20 | Power Outlet - Console |
| 26 | 25 | 2002-2003: Transfer Case Selector Switch |
| 25 | 2004-2005: Rear Window Defogger Relay | |
| 27 | 15 | Heated Mirror Relay |
| 28 | 10 | Cluster, Compass/Mini Trip Computer (except Base), Automatic Day/Night Mirror (except Base), Door Lock Switch - Passenger (except Base) |
| 29 | 20 | Cigar Lighter, Rear Power Outlet (SRT) |
| 30 | - | 2002-2004: - |
| 30 | 2005 (Off Road): Clutch Interlock Switch, Powertrain Control Module | |
| 31 | - | - |
| 32 | 10 | Park/Turn Signal Lamp - Right Front, Tail/Stop Turn Signal Lamp - Right, License Lamp - Right, Center Bazel Lamp, Clearance Lamp, Fender Lamp |
| 33 | 20 | Trailer Tow Connector, Trailer Tow Connector Add On (Heavy Duty) |
| 34 | 10 | Park/Turn Signal Lamp - Left Front, Tail/Stop Turn Signal Lamp - Left, License Lamp - Left (+Right), Tailgate Bar Lamp, Fender Lamp |
| 35 | 10 | Controller Antilock Brake (ABS) |
| 36 | 10 | Heating and Air Conditioning Control, Radiator Fan Drive (Diesel (2004-2005)), Wastegate Solenoid (Diesel (2005)) |
| 37 | - | - |
| 38 | 15 | Transfer Range Sensor (Automatic Transmission), Transmission Solenoid/TRS Assembly, Backup Lamp Switch (Manual Transmission) |
| 39 | 25 | 2002: Condenser Fan Relay |
| - | 2003-2004: - | |
| 20 | 2005 (Diesel): Fuel Pump Relay | |
| 40 | 15 | Adjustable Pedal Relay |
| 41 | 15 | Fog Lamp Relay |
| 42 | 20 | Power Outlet - Console |
| 43 | 25 | Transfer Case Control Module, Subwoofer Amplifier (SRT), Final Drive Control Module (Off Road) |
| 44 | 20 | 2002: Fuel Pump Relay |
| - | 2003-2005 (Gasoline: - | |
| 45 | 20 | Horn Relay |
| 46 | 15 | Trailer Tow Left Turn Relay |
| 47 | 15 | Trailer Tow Right Turn Relay |
| 48 | 20 | Seat Heater Module, Window/Door Lock Switch - Driver (2005) |
| 49 | 20 | California: Oxygen Sensor Downstream Relay |
| 20 | 2005 (SRT): Oxygen Sensor Downstream Relay, Oxygen Sensor - Front Left/Right | |
| 50 | 10 | EVAP Purge Solenoid (2002-2003, 2005 SRT), Front Control Module (2002), Final Drive Control Module (2005), Stop Lamp Switch (2005 - 5.7L), Brake Lamp Switch (2004), Sentry Key Immobilizer Module (2004-2005), Engine Control Module (Diesel (2003-2005)), Powertrain Control Module (Gasoline (2004-2005)) |
| 51 | 20 | Underhood Lamp, Data Link Connector, Radio, Cluster |
| 52 | 20 | 2002-2004: Airbag Control Module |
| 15 | 2005: Occupant Restraint Controller Module | |
| 53 | 20 | 2002-2004: Airbag Control Module, Passenger Airbag On/Off Switch |
| 15 | 2005: Occupant Restraint Controller Module, Passenger Airbag On/Off Switch | |
| R1 | 2002-2004: Spare | |
| 2005 (Diesel): Fuel Pump | ||
| R2 | 2002-2003: Condenser Fan | |
| 2004-2005: Spare | ||
| R3 | Fog Lamp | |
| R4 | Gasoline: Auto Shut Down | |
| R5 | Adjustable Pedal | |
| R6 | Gasoline: Fuel Pump | |
| R7 | Air Conditioner Compressor Clutch | |
| R8 | Transmission Control | |
| R9 | Spare | |
| R10 | 2002-2004 (California): Oxygen Sensor Downstream | |
| 2005 (SRT): Oxygen Sensor Downstream | ||
| R11 | Spare | |
| R12 | Wiper High/Low | |
| R13 | Wiper On/Off | |
| R14 | Starter Motor | |
| R15 | 2002-2003: Spare | |
| 2004-2005 (Gasoline): Condenser Fan | ||
| 2004-2005 (Diesel): Fuel Heater | ||
| 2005 (SRT): Blower Motor | ||
| R16 | Spare | |
| 2005: Rear Window Defogger | ||
| R17 | Park Lamp | |
| R18 | Spare | |
| R19 | Spare | |
| R20 | Heated Mirror | |
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