2024 RAM 2500 Fuses
Fuses are the unsung heroes of safety and reliability in modern cars like the 2024 RAM 2500, which have complex electrical systems that work together with strong mechanical engineering. These simple parts are very important for keeping the complex network of electrical circuits that run different parts of the car safe. In the case of the 2024 RAM 2500, which is a powerful heavy-duty truck, you can’t say enough about how important fuses are. These tiny sentinels are hidden in the fuse boxes of the car, both in the engine compartment and in the cabin. They are ready to break electrical circuits if there is an overload or a short circuit, preventing catastrophic damage and making sure that important systems work smoothly. As we learn more about fuses in the RAM 2500, we’ll see how important they are to keeping the car running, find out where they are and what kind they are, and learn the skills you need to replace them, all while recognizing how important they are to the vehicle’s reliability and longevity.
FUSES
General Information
WARNING!
- When replacing a blown fuse, always use an appropriate replacement fuse with the same amp rating as the original fuse. Never replace a fuse with another fuse of higher amp 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. Never replace a blown fuse with metal wires or any other material. Do not place a fuse inside a circuit breaker cavity or vice versa. Failure to use proper fuses may result in serious personal injury, fire and/or property damage.
- Before replacing a fuse, make sure that the ignition is off and that all the other services are switched off and/or disengaged.
WARNING!
- If the replaced fuse blows again, contact an authorized dealer.
- If a general protection fuse for safety systems (air bag system, braking system), power unit systems (engine system, transmission system) or steering system blows, contact an authorized dealer.
CAUTION!
If it is necessary to wash the engine compartment, take care not to directly hit the fuse box, and the windshield wiper motors with water. The fuses protect electrical systems against excessive current. When a device does not work, you must check the fuse element inside the blade fuse for a break/melt. Also, please be aware that using power outlets for extended periods of time with the engine off may result in vehicle battery discharge.
- Fuse Element
- Blade Fuse with a good/functional fuse element
- Blade Fuse with a bad/not functional fuse element (blown fuse)
Power Distribution Center
The Power Distribution Center is located in the engine compartment near the battery. This center contains cartridge fuses, micro fuses, relays, and circuit breakers. A description of each fuse and component may be stamped on the inside cover, otherwise the cavity number of each fuse is stamped on the inside cover that corresponds to the following chart.
CAUTION!
- When installing the power distribution center cover, it is important to ensure the cover is properly positioned and fully latched. Failure to do so may allow water to get into the power distribution center and possibly result in an electrical system failure.
- If it is necessary to wash the engine compartment, take care not to directly hit the fuse box, and the windshield wiper motor with water.
Cavity Cartridge Fuse Micro Fuse Description * If Equipped F01 – – Spare F02 60 Amp Yellow – ABS Pump Mtr F03 60 Amp Yellow – Rad Fan HI / Lo * F04 50 Amp Red – 400W Inverter F05 50 Amp Red – Air Suspension Comp F06 40 Amp Green – STOM F07 40 Amp Green – Starter Solenoid F08 20 Amp Blue – NOX Sensor * F09
30 Amp Pink –
Gas – Brake Vacuum Pump * 40 Amp Green Diesel – Fuel Heater * F10 40 Amp Green – CBC #2 / Ext Lights F11 40 Amp Green – Brake SYS MOD ECU & Valves F12 40 Amp Green – CBC #3 / Pwr Locks F13 40 Amp Green – HVAC Blwr Mtr F14 40 Amp Green – CBC #4 / Ext Light F15 30 Amp Pink – Power Side Step* F16 30 Amp Pink – Smart – Bar Module * F17 30 Amp Pink – Winch * F18 – – Spare F19 30 Amp Pink – Diesel SCR Feed * F20 30 Amp Pink – Passenger Door Mod F21 30 Amp Pink – DTCM F22
20 Amp Blue –
Gas – ECM * 25 Amp White Diesel – PCM * F23 30 Amp Pink – CBC #1 / Int Light Cavity Cartridge Fuse Micro Fuse Description * If Equipped F24 30 Amp Pink – Driver Door Mod F25 30 Amp Pink – FT Wiper F26 – – Spare F27 – – Spare F28 20 Amp Blue – TRLR TowB/U F29 20 Amp Blue – TRLR Tow Park F30 30 Amp Pink – TRLR Tow F31 – – Spare F32 – – Spare F33 20 Amp Blue – Trans Control Mod * F34 30 Amp Pink – VSIM #2 * F35 30 Amp Pink – Sunroof * F36 30 Amp Pink – Rear Defroster (EBL) * F37 30 Amp Pink – Diesel Frame / Fuel HTR * F38 30 Amp Pink – ITBM * F39 – – Spare F40 – 10 Amp Red Vented Seats * F41 – 10 Amp Red Act Grille Shutter / Dam * F42 – 20 Amp Yellow Horn F43 – 15 Amp Blue Heated Strng Wheel * F44 – 10 Amp Red Diagnostic Port F45 – – Spare F46 – 10 Amp Red Upfitters Relay Coils * F47 – – Spare F48 – – Spare Cavity Cartridge Fuse Micro Fuse Description * If Equipped F49 – 15 Amp Blue IP Cluster / CSG F50 – 20 Amp Yellow Air Suspension Mod * F51 – 10 Amp Red IGN Mod / KINMod / RFHub F52 – 5 Amp Tan Batt Snsr F53 – 20 Amp Yellow TRLR Tow – Lt Turn/Stop F54 – 20 Amp Yellow Non-Memory Adj Pedals * F55 – 10 Amp Red Fwd Utility Lamps F56 – 10 Amp Red VBV F57 – 20 Amp Yellow TCM / PCM / Trans PRSR SW F58 – 10 Amp Red Bed Lighting F59 – – Spare F60 – – Spare F61 – 10 Amp Red NH3 Sensor / PM Sensor * F62 – 10 Amp Red A/C Clutch F63 – 20 Amp Yellow Ignition Coils / CAPS F64 – 25 Amp Clear Fuel Injectors / PCM * F65 – 10 Amp Red RVDMP / MOD BLE * F66 – 10 Amp Red Sunroof / USB RR*/ RR Mirror/ Passenger Wind SW F67 – 10 Amp Red UCI / TRLR 360 Cam/ Tach * F68 – 10 Amp Red AEB RACAM HTR * F69 – 15 Amp Blue SCR Mod 12 Volt * F70 – 30 Amp Green Fuel Pump Mtr / Fuel Htr RLY F71 – 25 Amp Clear Amp / Act Noise Cnsl F72 – – Spare F73 – 20 Amp Yellow Fuel Transfer Pump * Cavity Cartridge Fuse Micro Fuse Description * If Equipped F74 – 10 Amp Red Backup Alarm F75 – 10 Amp Red SCR RLY / ATMM * F76 – 10 Amp Red Electronic Stability Control (ESC) * F77 – 10 Amp Red DTCM / TCM / FAD MOD / STOM F78 – 15 Amp Blue ECM / PCM / IRCM / AUX Relay Feed / HRLS F79 – 15 Amp Blue ID / Clearance Lt F80 – 10 Amp Red Ovrdh Con / Assist / 911 F81 – 20 Amp Yellow TRLR Tow RT Turn / Stop F82 – 10 Amp Red SCCM / Cruise Control F83 – 10 Amp Red TLR AST / TLR RVS CTL / TLR KNB F84 – 15 Amp Blue ASBM / HVAC / ICS / R Heated Seats SW F85 – 10 Amp Red ORC (Airbag) F86 – 10 Amp Red ORC (Airbag) F87 – 10 Amp Red Air Susp / ITBM / SCCM / TLR TPM F88 – 15 Amp Blue IP Cluster F89 – – Spare F90 – 20 Amp Yellow Power Outlet / Batt F91 – – Power Outlet / Acc F92 – 10 Amp Red Invertor MOD / USB-IP / WCPM * F93 – – Spare Cavity Cartridge Fuse Micro Fuse Description * If Equipped F94 – 10 Amp Red SBW / TCASE SW / TRL TPM – GTWY F95 – 10 Amp Red RR CAM / PRKTRNX/ CHMSL Cam / Bld SPT SNR / SVUE CAM * F96 – 10 Amp Red TRL Cam * F97 – 20 Amp Yellow Front HTD ST PSGR * F98 – 20 Amp Yellow Front HTD ST DRIVER * F99 – 10 Amp Red HVAC / IN-CARTS / CSG / TRL CWY MOD */ TACH F100 – 10 Amp Red Upfitter Box Feed * F101 – 20 Amp Yellow RR HTD ST Right * F102 – 20 Amp Yellow RR HTD ST Left / Run RLY #3 * F103 – 10 Amp Red HeadLamp AFLS * F104 – 20 Amp Yellow UCI Port / USB Rear BULB REPLACEMENT
Replacement Bulbs, Names, And Part Numbers
In the instance a bulb needs to be replaced, this section includes bulb description and replacement part numbers. All of the inside bulbs are brass or glass-wedge base. Aluminum base bulbs are not approved.
NOTE:
Please see an authorized dealer for LED replacement
| Interior Bulbs | |
| Bulb Name | Bulb Number |
| Overhead Console Lamps | TS 212–9 |
| Dome Lamp | 7679 |
| For lighted switches, see an authorized dealer for replacement instructions. | |
| Exterior Bulbs | |
| Bulb Name | Bulb Number |
| Low Beam (Halogen Reflector Headlamp) | H11LL |
| High Beam (Halogen Reflector Headlamp) | 9005LL |
| Low & High Beam | LED |
| Turn Signal / Front Position (Halogen Reflector Headlamp) | 7444NA |
| Turn Signal | LED |
| Front Position (LED Headlamps) | LED |
| Front Side Marker (Headlamps) | LED |
| Front Fog Lamps (Halogen Reflector Headlamp) | H11LL |
| Front Fog Lamps (LED Headlamps) | LED |
| Side Indicators (Front And Side View Mirror) | LED |
| Base Rear Tail/Turn and Stop Lamp | 3157K |
| Premium Rear Tail/Turn and Stop Lamp | LED |
| Base Tail/Backup Lamp | W21/5W |
| Center High Mounted Stop Lamp (CHMSL) | 921 |
| Cab Roof Marker Lamps | LED |
| Rear Lamp Bar ID Marker Lamp | LED |
| Side Marker Lamps (Dual Rear Wheels) | LED |
| Base Turn/Tail Lamp | PWY24W |
| Rear License Plate Lamp | LED |
Replacing Exterior Bulbs
BASE QUAD: LOW BEAM HEADLAMP, HIGHBEAM HEADLAMP, FRONT PARK, AND TURN — IF EQUIPPED Low Beam
See the following steps to replace:
- Open the hood.
- Disconnect and isolate the negative battery cable.
- Reach into the front wheel house ahead of the front wheel, remove the fastener, and lift the cover over the access hole in the front of the wheelhouse splash shield. Access to the rear of the lamp can be gained through this access hole.
- Reach through the access hole of the wheel house splash shield and disengage the bulb access cover by rotating counterclockwise.
- Disconnect the internal lamp wiring harness connector from the low beam bulb.
CAUTION!- Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.
- Always use the correct bulb size and type for replacement. An incorrect bulb size or type may overheat and cause damage to the lamp, the bulb socket, or the lamp wiring.
- Rotate the bulb counterclockwise a quarter turn to unlock the bulb from the lamp.
- Pull the bulb straight out from the housing.
- Reverse the procedure for installation of new bulb and covers.
High Beam
See the following steps to replace:
- Open the hood.
- Disconnect and isolate the negative battery cable.
- Look under the hood and behind the headlamp to find the high beam bulb access cover.
- Reach behind the headlamp and disengage the access cover by rotating counterclockwise.
- Disconnect the internal lamp wiring harness connector from the high beam bulb.
CAUTION!- Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.
- Always use the correct bulb size and type for replacement. An incorrect bulb size or type may overheat and cause damage to the lamp, the bulb socket, or the lamp wiring.
- Rotate the bulb counterclockwise a quarter turn to unlock the bulb from the lamp.
- Pull the bulb straight out from the housing.
- Reverse the procedure for installation of new bulb and covers.
Outer Front Park And Turn
See the following steps to replace:
- Open the hood.
- Disconnect and isolate the negative battery cable.
- Reach into the front wheel house ahead of the front wheel, remove the fastener, and lift the cover over the access hole in the front of the wheel house splash shield. Access to the rear of the lamp can be gained through this access hole.
- Reach through the access hole of the wheel house splash shield and disengage the side marker socket by rotating counterclockwise a quarter turn.
- Pull the socket and bulb straight out from the housing.
- Separate the bulb from the socket without twisting.
- Reverse the procedure for installation of new bulb and covers.
FOG LAMPS — IF EQUIPPED
Please see an authorized dealer for service on LED and Halogen front fog lamps.
Halogen
See the following steps to replace:
- Reach under and behind the front fascia/bumper to access the back of the front fog lamp housing.
- Disconnect the fog lamp wiring harness connector from the fog lamp bulb.
- Rotate the bulb counterclockwise a quarter turn to unlock the bulb from the housing.
- Pull the bulb straight out from the housing.
- CAUTION! Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.
REAR TAIL/STOP, TURN SIGNAL AND BACKUP LAMPS
See the following steps to replace:
- Remove the two screws and pushpins that pass through the bed sheet metal.
- Tail Lamp
- Screws
- Fasteners
- Pull the outboard side of the lamp rearward far enough to unsnap the two receptacles on the outboard side of the lamp housing from the two plastic snap post retainers in the outer box side panel.
- Disconnect the wiring harness connectors from the bulb socket.
- Rotate the bulb socket counterclockwise a quarter turn to unlock it from the housing.
- Pull the bulb straight out of the socket.
- CAUTION! Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.
- Reverse the procedure to install the bulb and housing.
CENTER HIGH MOUNTED STOP LAMP (CHMSL) WITH CARGO LAMP
See the following steps to replace:
- Remove the two screws holding the housing/lens to the body as shown.
- Separate the connector holding the housing and wiring harness to the body.
- Turn the desired bulb socket a quarter turn and remove the socket and bulb from housing.
- Pull the desired bulb straight from the socket.
- CAUTION! Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.
- Outside Bulbs: Cargo Lamps
- Inside Bulb: Center High Mounted Stop Lamp
- Reverse the procedure for installation of bulbs and housing.
CAB TOP CLEARANCE LAMPS — IF EQUIPPED
See the following steps to replace:
- Remove the screws from the top of the lamp.
- Rotate the bulb socket a quarter turn and pull it from the lamp assembly.
- Pull the bulb straight from it’s socket and replace.
REAR LAMP BAR ID MARKER (DUAL REAR WHEELS) — IF EQUIPPED
See the following steps to replace:
- Loosen the two screws and the housing to gain access to the bulb sockets.
- Turn the socket a quarter turn counterclockwise to access the bulb.
- Pull the bulb straight out from the socket.
- Reverse the procedure for installation of the bulbs and housing.
SIDE MARKER LAMPS (DUAL REAR WHEELS)— IF EQUIPPED
See the following steps to replace:
- Push rearward on the side marker lamp assembly.
- Pull the entire assembly from the fender.
- Turn the socket a quarter turn counterclockwise and remove from the assembly to access the bulb.
- Pull the bulb straight out of the socket.
- Reverse the procedure for installation of the bulbs and housing.
FAQ
A: The RAM 2500 typically has multiple fuse boxes, including one in the engine compartment and another inside the cabin.
A: Fuses are designed to protect electrical circuits by breaking the circuit if there’s an overload or a short circuit, preventing damage to components or fires.
A: A blown fuse can often be identified by a visibly broken filament inside the fuse. Some vehicles also have a fuse diagram indicating which fuse corresponds to each circuit.
A: To replace a fuse, you typically only need a pair of needle-nose pliers or a fuse puller and replacement fuses of the appropriate amperage.
A: The size and amperage of the fuses can vary depending on the circuit. Refer to the fuse box covers or the owner’s manual for specific details.
A: It is not recommended to use a higher-amp fuse than what is specified for a particular circuit, as it can lead to electrical damage or fires. Always replace fuses with the correct amperage rating.
A: Fuses typically do not wear out with time but may blow due to electrical issues. Replacement frequency depends on the specific issue and is not part of regular maintenance.
A: Carrying a spare set of common fuse sizes in the glove box can be helpful in case of emergencies.
A: There is no specific order to follow when replacing fuses, but it’s essential to disconnect the battery before working on the fuses to prevent electrical shocks.
A: Fuses cannot be reset once they have blown. They need to be replaced with a new one of the appropriate amperage rating.
A: The engine compartment fuse box is typically located near the battery. Refer to the owner’s manual for the exact location and access instructions.
A: Some vehicles come with a small assortment of spare fuses in a compartment within the fuse box. Check your vehicle’s documentation for details.
A: Yes, there are typically fuses for the headlights in the fuse box. Refer to the fuse diagram for the specific location and amperage.
A: Replacing a fuse is a relatively simple task that most vehicle owners can handle. However, if you are unsure, consult the owner’s manual or seek professional assistance.
A: Yes, there are typically fuses for power outlets and the cigarette lighter in the fuse box. Refer to the fuse diagram for their specific locations and amperage ratings.
Useful Link
View Full PDF: 2024 RAM 2500 | Auto User Guide
2024 RAM 2500 Maintenance Schedule Guide