2021 Chrysler 300 Fuses Instruction Guide
Introduction
The Chrysler 300 is a stunning and sophisticated sedan from 2021 that combines contemporary elegance with dependable performance. The fuse system of this car is one of the crucial parts that guarantees its functionality and safety. Fuses are essential for protecting your Chrysler 300’s electrical circuits and avoiding damage to important parts. We will examine the fuses of the 2021 Chrysler 300 in this introduction, illuminating their significance and the numerous varieties you can find in this high-tech car. These fuses are more than just basic electrical parts; they are the unseen watchdogs of your car’s complex electrical system.
They make sure that everything works as it should, from your lights and power windows to important safety features like airbags and anti-lock brakes. Any owner or enthusiast of a 2021 Chrysler 300 should be familiar with the fuse system since it gives you the ability to diagnose problems and keep your car in good working order. The types of fuses used in the 2021 Chrysler 300, their locations inside the car, and how to replace them when necessary will all be covered in detail in this comprehensive guide. This examination of the fuses in the 2021 Chrysler 300 will provide you useful insights into the inner workings of this fantastic car, whether you’re the proud owner of this opulent sedan or simply curious about automotive technology. So let’s begin this voyage into the 2021 Chrysler 300’s fuse system to discover the threads holding together this engineering marvel for automobiles.
FUSES
General Information
- 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. 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.
- 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.
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 when using power outlets for extended periods of time with the engine off may result in vehicle battery discharge.
Blade Fuses
- Fuse Element
- Blade Fuse with a good/ functional fuse element
- Blade fuse with a bad/ not functional fuse element (blown fuse)
Underhood Fuses
The Front Power Distribution Center is located in the engine compartment. This module contains fuses and relays. Fuse cavity location and descriptions are printed on the inside of the power distribution center cover.
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.
- 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.
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F01 | – | 25 Amp Clear | Fuel Pump Motor / Assy Fuel Tank |
| F02 | – | – | Spare * |
| F03 | – | 5 Amp Tan | MGU * |
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F04 | – | – | Spare * |
| F05 | – | – | Spare * |
| F06 | – | 10 Amp Red | OUTPUT TO UPFITTER PDC * |
| F07 | – | – | Spare * |
| F08 | 20 Amp Blue | – | Trailer Tow Backup |
| F09 | – | 20 Amp Yellow | Trailer Stop / Turn Lamp Left |
| F10 | – | 20 Amp Yellow | Trailer Stop / Turn Lamp Right |
| F11 | – | 15 Amp Blue | ID/CLEARANCE LIGHTS * |
| F12 | 20 Amp Blue | – | Trailer Tow Park Lamp |
| F13 | – | – | Spare * |
| F14 | – | 10 Amp Red | AC Clutch |
| F15 | – | 5 Amp Tan | Intelligent Battery Sensor (IBS) |
| F16 | – | – | Spare * |
| F17 | – | 20 Amp Yellow | Air Suspension |
| F18 | – | 15 Amp Blue | AGS / Rear Axle Cooling Valve / Active Air Dam |
| F19 | – | – | Spare * |
| F20 | – | 20 Amp Yellow | Adjustable Pedals * |
| F21 | 30 Amp Pink | – | Power Side Step * |
| F22 | 50 Amp Red | – | Air Module * |
| F23 | – | – | Spare * |
| F24 | – | 20 Amp Yellow | TCM SBW |
| F25 | 40 Amp Green | – | MOD CBC 4 Exterior Lights 2 |
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F26 | 50 Amp Red | – | ESP Module |
| F27 | 30 Amp Pink | – | Front Wiper |
| F28 | – | 10 Amp Red | PCM / ECM |
| F29 | 40 Amp Green | – | ESP Module |
| F30 | – | – | Spare * |
| F31 | – | – | Spare * |
| F32 | 20 Amp Blue | – | ECM / PCM |
| F33 | 30 Amp Pink | – | Brake Vacuum Pump |
| F34 | – | – | Spare * |
| F35 | – | 10 Amp Red | PCM / ECM / Power Pack Unit (PPU) Motor Generator Unit (MGU) Wake Up * / EPS / ATMM / ESP |
| F36 | – | – | Spare * |
| F37 | – | 5 Amp Tan | R / S Output to iPDC |
| F38 | – | 10 Amp Red | DTCM / Active CL TEMP VLV |
| F39 | – | 15 Amp Blue | MOD ATMM * |
| F40 | 40 Amp Green | – | Starter |
| F41 | – | 10 Amp Red | IRCAM Heaters |
| F42 | 20 Amp Blue | – | AUX SWITCH #5 * |
| F43 | – | 20 Amp Yellow | MGU Coolant Pump / ADCM * |
| F44 | – | 10 Amp Red | Trailer Camera * |
| F45 | – | 10 Amp Red | ADCM * |
| F46 | 30 Amp Pink | – | Fuel Heater * |
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F47 | 30 Amp Pink | – | Rear Defroster |
| F48 | – | – | Spare * |
| F49 | 30 Amp Pink | – | Htr Ctrl * |
| F50 | 20 Amp Blue | – | AUX SWITCH #6 * |
| F51 | 25 Amp White | – | FUEL PUMP MOTOR #1 * |
| F52 | – | – | Spare * |
| F53 | – | 10 Amp Red | Supply / Purging Pump * |
| F54 | – | 15 Amp Blue | PCM * |
| 10 Amp Red | Vapor Blocking Valve * | ||
| F55 | – | 15 Amp Blue | RT HID Headlamp |
| F56 | – | – | Spare * |
| F57 | – | 20 Amp Yellow | Horn |
| F58 | 25 Amp White | – | FUEL PUMP MOTOR #2 * |
| F59 | – | 25 Amp Clear | Injectors / IGN Coil / Glow Plug Module * |
| F60 | – | 20 Amp Yellow | ECM / PCM / ACT Short Running Valve / LTR Coolant Pump * |
| F61 | – | 15 Amp Blue | LT HID Headlamp |
| F62 | 60 Amp Blue | – | Glow Plug * |
| 40 Amp Green | LTR Coolant Pump * | ||
| F63 | 20 Amp Blue | – | NOx Sensor * |
| F64 | – | 10 Amp Red | PM Sensor * |
Rear Interior Fuses
There is also a power distribution center located in the trunk under the spare tire access panel. This center contains fuses and relays. Fuse cavity location and descriptions are printed on the inside of the power distribution center cover.
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.
- 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.
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F01 | 30 Amp Pink | – | Trailer Tow Receptacle |
| F02 | – | – | Spare |
| F03 | – | 20 Amp Yellow | Module Seat Heater Front (Pass) |
| F04 | – | – | Spare |
| F05 | – | 20 Amp Yellow | Module PPU Cooling Fan * |
| F06 | – | – | Spare |
| F07 | 40 Amp Green | – | Mod CBC 3 PWR Locks |
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F08 | – | – | Spare |
| F09 | – | – | Spare |
| F10 | 40 Amp Green | – | HVAC Blower Motor |
| F11 | – | 5 Amp Tan | Output to Under-hood Power Distribution Center (UPDC) Run Coil |
| F12 | – | 25 Amp Clear | Mod Audio Amplifier / Active Noise Cancellation |
| F13 | – | 20 Amp Yellow | Mod Seat Heater Front (Driver) |
| F14 | – | 15 Amp Blue | Mod Seat Heater Front (Steering Wheel) |
| F15 A&B | – | – | Spare |
| F16 | – | – | Spare |
| F17 | – | 20 Amp Yellow | LT Spot Lamp * |
| F18 | 30 Amp Pink | – | Motor Sunshade Sunroof |
| F19 | – | – | Spare |
| F20 | – | 20 Amp Yellow | Comfort Rear Seat Module (CRSM) (Heat Rear RT) |
| F21 | – | – | Spare |
| F22 | – | – | Spare |
| F23 | – | – | Spare |
| F24 | – | 15 Amp Blue | Mod RF Hub / Mod Ignition / Mod Cluster CNN |
| F25 | 40 Amp Green | – | Mod Integrated Trailer Brake |
| F26 | – | 15 Amp Blue | Mod Cluster CCN / Mod Cyber Security / Trailer Gateway Module (360 Camera) |
| F27 | – | 5 Amp Tan | Mod Cluster CCN / Mod SGW |
| F28 | – | 10 Amp Red | Mod ORC |
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F29 | – | 20 Amp Yellow | Mod CRSM (Heat Rear LT) |
| F30 | 30 Amp Pink | – | Mod DTCM / Mod Tailgate |
| F31 | 30 Amp Pink | – | Mod CBC 1 Interior Light |
| F32 | – | 20 Amp Yellow | RT Spot Lamp * |
| F33 | – | 10 Amp Red | Assy Overhead Console / Switch 911 / Switch Assist / Sunshade / HUD |
| F34 | – | 15 Amp Blue | Frt & RR Ventilated Seat Motor |
| F35 | – | 10 Amp Red | Mod Inverter / Mtr Sunshade Sunroof / Mtr Dual Sunroof / USB Charge Only |
| F36 | 40 Amp Green | – | Mod CBC 2 Exterior Light 1 |
| F37 | – | – | Spare |
| F38 | – | – | Spare |
| F39 | – | – | Spare |
| F40 | 20 Amp Blue | – | Dome Pursuit Vehicle * |
| F41 A&B | – | 15 Amp Blue | Lumbar Support & Pass SW / Steering Column Control Module / HVAC Control Module / ICS Switch Bank / Upper Switch Bank |
|
F42 A&B |
– |
10 Amp Red |
Mod Transfer Case Switch Module (TCSM) / SBW / Electric Park Brake SW / Module TPM Trailer / Module Gateway Can-C Trailer TPM /
Seat LT & RT Vent |
| F43 A&B | – | 10 Amp Red | Port Diagnostics / Front & Rear USB |
| F44 | – | 20 Amp Yellow | Radio / DCSD / Telematics Box Mod / Trailer Gateway Module (360) |
| F45 | 30 Amp Pink | – | Mod Door MUX Driver |
| F46 | 30 Amp Pink | – | Mod Door MUX Passenger |
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F47 | – | – | Spare |
| F48A | – | 10 Amp Red | Rear View Mirror / SW Window Passenger / Rear USB / Wireless Charging Pad Mod |
| F49 | – | 15 Amp Blue | Mod CVPM / SNSR Blind Spot / HDLP Adaptive Front Lighting Sensor (AFLS) |
| F50A | – | 10 Amp Red | Battery PACK Control Mod (BPCM) * |
| F51 A&B | – | – | Spare |
| F52 | 20 Amp Blue | – | Direct Battery Feed * |
| F53 | – | 10 Amp Red | Trailer Reverse Steering Control / Trailer Steering Control Knob |
| F54 A&B | – | 20 Amp Yellow | Power Outlet Center Seat Battery Feed Position
Power Outlet Center Seat Ignition Feed Position |
| F55 | 25 Amp White | – | Upfitter * |
| F56 | 30 Amp Pink | – | Mod Network Interface * |
| F57 | 20 Amp Blue | – | Direct Battery Feed * |
| F58 | 20 Amp Blue | – | Direct Battery Feed * |
| F60 | 50 Amp Red | – | Mod Inverter * |
| F61 | – | – | Spare |
|
F62 A&B |
– |
10 Amp Red |
ITBM / Mod Occupant Class / Mod IAIR Suspension / Mod HVAC / Snsr In car Temp / Integrated Radar Camera Mod (IRCM) / Humidity Rain & Light Sensor (HRLS) / Parktronics System Mod (PTS) / Gateway Can-C Trailer TPM Mod |
| F63 | – | – | Spare |
| F64 | – | – | Spare |
| Cavity | Cartridge Fuse | Micro Fuse | Description |
| * If Equipped | |||
| F65 | – | 10 Amp Red | Mod ORC |
| F66 | – | 10 Amp Red | Run – Accessory Feed |
| Cavity | Circuit Breaker | Description |
| CB1 | 25 Amp | Driver Window SW Rear PWR Windows / Overhead SW Rear Defrost |
| CB2 | 25 Amp | Driver PWR Seat / Driver Seat Memory Mod |
| CB3 | 25 Amp | Passenger Power Seat / Passenger Seat Memory Mod |
BULB REPLACEMENT
Replacement Bulbs
All of the interior bulbs are glass wedge base or glass cartridge types. Aluminum base bulbs are not approved and should not be used for replacement.
| Interior Bulbs | |
| Bulb Name | Bulb Number |
| Overhead Console Lamps | TS 212–9 |
| Dome Lamp | 7679 |
| NOTE:
For lighted switches, see an authorized dealer for replacement instructions. |
|
| Exterior Bulbs | |
| Bulb Name | Bulb Number |
| Low Beam (Halogen Reflector Headlamp – If Equipped) | H11LL |
| High Beam (Halogen Reflector Headlamp – If Equipped) | 9005LL |
| Low & High Beam (LED Reflector Headlamp) | LED |
| Low & High Beam (LED Projector Headlamp) | LED |
| Turn Signal / Front Position (Halogen Reflector Headlamp – If Equipped) | 7444NA |
| Turn Signal / Front Position (LED Headlamps) | LED |
| Front Side Marker (Halogen Reflector Headlamp – If Equipped) | W5W |
| Front Side Marker | LED |
| Front Fog Lamps (Halogen Reflector Headlamp – If Equipped) | H11LL |
| Front Fog Lamps | LED |
| Side Indicators (Front And Side View Mirror – If Equipped) | LED |
| Base Rear Tail/Turn and Stop Lamp | 7440LL/W21WLL |
| Premium Rear Tail/Turn/Backup and Stop Lamp | LED |
| Base Backup Lamp | 7440/W21W |
| Center High Mounted Stop Lamp (CHMSL) | 921 |
| Cargo Lamp | 921 |
| Rear License Plate Lamp | LED |
| Base Turn Lamp | 7440NA / WY21W |
Replacing Exterior Bulbs
HIGH INTENSITY DISCHARGE (HID) HEADLAMPS — IF EQUIPPED
The headlamps are a type of high voltage discharge tube. High voltage can remain in the circuit even with the headlamp switch off and the ignition turned to the OFF position. Because of this, you should not attempt to service a headlamp bulb yourself. If a headlamp bulb fails, take your vehicle to an authorized dealer for service.
WARNING
A transient high voltage occurs at the bulb sockets of HID headlamps when the headlamp switch is turned ON. It may cause serious electrical shock or electrocution if not serviced properly. See an authorized dealer for service.
NOTE:
On vehicles equipped with HID headlamps, when the headlamps are turned on, there is a blue hue to the lights. This diminishes and becomes more white after approximately 10 seconds, as the system charges.
BI-HALOGEN LOW BEAM AND HIGH BEAM HEADLAMP — IF EQUIPPED
See the following steps to replace:
- Open the hood.
NOTE:
Removal of the air cleaner filter housing may be necessary prior to replacing bulbs in the headlamp assembly on the driver side of the vehicle. - Reach behind the headlamp housing to access the headlamp (outboard) bulb cap.
- Firmly grab the cap and rotate it counter- clockwise to unlock it.
- Twist the headlamp bulb assembly counter- clockwise, and then pull it out of the headlamp assembly.
- Disconnect the bulb from the wiring assembly and install the replacement bulb.
- Reinstall the bulb and wiring assembly into the headlamp assembly, and then turn it clockwise.
CAUTION
Do not touch the new bulb with your fingers. Oil contamination will severely shorten bulb life. If the bulb comes in contact with any oily surface, clean the bulb with rubbing alcohol. - Reinstall the access cap making sure it is seated into the housing and turn cap clockwise to engage locking lugs. Visually, you should be unable to see the blue O-ring gasket. The access cap should be uniformly seated and you should not be able to pull the access cap off without turning it counterclockwise.
CAUTION
If the access cap is not installed correctly after bulb replacement, the lamp becomes susceptible to dust, condensation, and water intrusion. This may ultimately lead to an inoperative lamp. If the access cap cannot be installed correctly, please return to an authorized dealer for proper repair or access cap replacement if necessary.
FRONT TURN SIGNAL LAMPS
See the following steps to replace:
- Open the hood.
NOTE:
Removal of the air cleaner filter housing may be necessary prior to replacing bulbs in the headlamp assembly on the driver side of the vehicle. - Reach behind the headlamp housing to access the turn signal (inboard) bulb cap.
- Firmly grab the cap and rotate it counter-clockwise to unlock it.
- Squeeze the two tabs on the side of the bulb socket and pull straight out from the lamp assembly.
- Disconnect the bulb from the wiring connector and install the replacement bulb.
- Install the bulb and connector assembly straight into the lamp until it locks in place.
- Install the turn signal bulb cap in the headlamp housing and rotate clockwise to lock in place.
FRONT FOG LAMPS
The Front Fog Lamps use LED sources that are not serviceable separately. The Front Fog Lamp must be replaced as an assembly; see an authorized dealer.
FRONT/REAR SIDE MARKER LAMPS
The Side Markers use LED lamps that are not serviceable separately. The Side Markers must be replaced as an assembly, see an authorized dealer.
REAR BACKUP LAMP AND TURN SIGNAL LAMPS
The Rear Backup and Turn Signal Lamp use LED sources that are not serviceable separately. The Rear Lamps must be replaced as an assembly, see an authorized dealer for further information.
LICENSE LAMP
The License Lamp uses an LED source that is not serviceable separately. The License Lamp must be replaced as an assembly; see an authorized dealer.
CENTER HIGH MOUNTED STOP LAMP (CHMSL)
The CHMSL Lamp uses LED sources that are not serviceable separately. The CHMSL Lamp must be replaced as an assembly; see an authorized dealer.
FAQs
In order to stop electrical overloads in your Chrysler 300, a fuse is a protection mechanism. If too much current passes through it, it is built to shut off the circuit.
The inside fuse box and the integrated power module (IPM) under the hood are where the fuses in a 2021 Chrysler 300 are situated.
On the driver’s side of the dashboard is where you’ll find the inside fuse box. You can get to it by opening the driver’s side door and removing the dashboard panel there.
Under the hood, there is a part called the IPM that contains a number of fuses and relays. It is in charge of providing electricity to various electrical parts of the car.
There will be a broken wire inside of a blown fuse. To check whether the wire is intact, you can visually inspect the fuses or use a multimeter to test for continuity.
Replace blown fuses with fresh ones with the same amperage rating. The fuse is marked with the amperage rating.
No, it is not secure to use a fuse with a larger amperage. To prevent harming the electrical system, replace blown fuses with ones with the same amperage rating at once.
Electrical issues, short circuits, circuit overloads, and improper accessory use are common causes.
The amperage rating is typically noted on the fuse or published in the owner’s manual for your car.
Yes, a Chrysler usually has extra fuses in the fuse box that can be used in an emergency.
No, replacing a fuse with one of the same type and amperage rating is necessary to preserve the electrical system’s safety and functionality.
If you’re frequently blowing fuses, it’s advisable to have a trained mechanic examine your car so they can find and address any underlying electrical problems.
It depends on which circuit is being affected by the blown fuse. However, because it can cause more harm, it is typically not advised.
Circuit breakers are rarely used in Chrysler automobiles; instead, fuses used. You’ll need to swap out the blown fuse for a new one.
Modifying fuse ratings to accommodate aftermarket items is not recommended. When making electrical modifications, always go by the manufacturer’s instructions to protect your car’s electrical system and maintain safety.
Useful Link
View Full PDF: 2021 Chrysler 300 Owner’s Manual
2021 Chrysler 300 Fuses Instruction