Learn about Chrysler 300/300C (Mk1/LX) 2005-2010 fuse box and relay’s locations, functions, and maintenance tips for optimal vehicle electrical system.
The Chrysler 300/300C (Mk1/LX) from 2005-2010 offers bold styling with both sedan and station wagon body styles. Its standout features include a powerful V6 or V8 engine, premium interior finishes, and advanced technology like navigation and premium sound systems. These systems rely heavily on the vehicle’s electrical setup, managed by the fuse box and relays.
The fuse box, located in the engine compartment and cabin, protects critical systems such as lights, infotainment, and air conditioning from power surges. If a fuse blows, it cuts power to prevent damage to the affected circuit.
The relays in the Chrysler 300/300C control high-power components such as the fuel pump, radiator fan, and starter motor. A malfunctioning relay can lead to issues like engine starting problems or overheating, affecting overall vehicle performance.
Regular inspection and maintenance of the fuse box and relays ensure the vehicle’s features, such as its powerful engines and luxury amenities, run smoothly without unexpected electrical failures.
MUST READ: DYI – How to Check Car Fuses?
(2005-2010) Chrysler 300/300C (Mk1/LX) fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Chrysler 300/300C (Mk1/LX) 2005-2010 fuse assignment
- Cigar lighter (power outlet) fuses in the Chrysler 300 / 300C are the fuses №9 (Console Power Outlet), №16 (Power Outlet Trunk, if equipped) and №18 (Selectable Power Outlet) in the Rear Power Distribution Center (in the trunk).
Year of production: from 2005, 2006, 2007, 2008, 2009, 2010
Fuse box location
Front Power Distribution Center is located in the engine compartment:
2005-2007
2008-2010
Rear Power Distribution Center is located in the trunk under the spare tire access panel.
Fuse box diagrams
2005
Front Power Distribution Center
Assignment of fuses in the Front Power Distribution Center (2005)
| Cavity | Amp/Color | Circuits |
|---|---|---|
| 1 | 20 Amp Yellow | Left High Beam Headlight |
| 2 | 20 Amp Yellow | Right High Beam Headlight |
| 3 | 15 Amp Dk. Blue | Adjustable Pedal |
| 4 | 20 Amp Yellow | Horn |
| 5 | 25 Amp Clear | Headlamp Washer — If Equipped |
| 6 | 15 Amp Dk. Blue | Front Control Module (FCM) |
| 7 | 20 Amp Yellow | Fog Lamp |
| 8 | 15 Amp Dk. Blue | Park Lamp |
| 9 | 15 Amp Dk. Blue | Non ABS Brakes |
| 10 | 5 Amp Orange | Starter |
| 11 | 15 Amp Dk. Blue | Auto Shutdown/Powertrain Control Module (PCM) |
| 12 | — | — |
| 13 | — | — |
| 14 | 20 Amp Yellow | Powertrain Control Module |
| 15 | 20 Amp Yellow | Injectors, Ignition Coils |
| 16 | 20 Amp Yellow | Powertrain Control Module |
| 17 | 30 Amp Pink | Antilock Brake System (ABS) Valves |
| 18 | 30 Amp Pink | Windshield Wiper/Washer |
| 19 | 50 Amp Red | Radiator Fan |
| 20 | 20 Amp Lt. Blue | Starter |
| 21 | 50 Amp Red | ABS Pump Motor |
| 22 | 40 Amp Green | Radiator Fan High/Lovv |
| 23 | 50 Amp Red | High Intensity Lighting |
| 24 | — | — |
| 25 | 30 Amp Pink | Lighting Left High Beam/ Right Low Beam |
| 26 | 20 Amp Lt. Blue | Transmission |
| 27 | 30 Amp Pink | Lighting Left Low Beam/ Right High Beam |
Rear Power Distribution Center
Assignment of fuses in the Rear Power Distribution Center (2005)
| Cavity | Amp/Color | Circuits |
|---|---|---|
| 1 | 60 Amp Clear | Ignition Off Draw |
| 2 | 40 Amp Green | Battery |
| 3 | — | — |
| 4 | 40 Amp Green | Battery |
| 5 | 30 Amp Pink | Heated Seat/Steering Column |
| 6 | 20 Amp Yellow | Fuel Pump |
| 7 | — | — |
| 8 | 15 Amp Dk. Blue | Ignition Start/Run – Start |
| 9 | 20 Amp Yellow | Console Power Outlet |
| 10 | 10 Amp Red | Rear Fog Lamp — If Equipped |
| 11* | 25 Amp C/BRKR | Memory Module/Door Locks |
| 12* | 25 Amp C/BRKR | Passenger Power Seat |
| 13* | 30 Amp C/BRKR | Door Module Run/Acc/Delay |
| 14 | 10 Amp Red | Sentry Key/Remote Keyless Entry/Cluster |
| 15 | 20 Amp Yellow | Brake Light (5.7L) |
| 16 | 20 Amp Yellow | Power Outlet Trunk – if equipped |
| 17 | — | — |
| 18 | 20 Amp Yellow | Selectable Power Outlet |
| 19 | 10 Amp Red | Stop Lamp |
| 20 | 20 Amp Yellow | Rear Wiper — If Equipped |
| 21 | — | — |
| 22 | — | — |
| 23 | — | — |
| 24 | — | — |
| 25 | — | — |
| 26 | — | — |
| 27 | 10 Amp Red | Airbag/Occupant Classification Module |
| 28 | 10 Amp Red | Curtain Airbag – if equipped |
| 29 | 5 Amp Orange | Sentry Key/Remote Keyless Entry/Powertrain Control Module Ignition Feed |
| 30 | 10 Amp Red | Steering Column Module/ Power Mirrors – if equipped |
| 31 | — | — |
| 32 | — | — |
| 33 | — | — |
| 34 | — | — |
| 35 | 5 Amp Orange | Power Antenna/Garage Door Opener/Ignition Delay |
| 36 | 20 Amp Yellow | Radio/Navigation |
| 37 | 15 Amp Dk. Blue | Transmission |
| 38 | 5 Amp Orange | Analog Clock/Garage Door Opener |
| 39 | 10 Amp Red | Heated Mirror |
| 40 | 5 Amp Orange | Power Mirror |
| 41 | 10 Amp Red | Climate Control Module/ Headlamp Leveling — if equipped/Rear Park Assist — if equipped/Tire Pressure Monitoring — if equipped |
| 42 | 30 Amp Pink | Automatic Temperature Control (ATC) Blower Motor |
| 43 | 30 Amp Pink | Rear Defroster |
| 44 | 20 Amp Lt. Blue | Audio Amplifier |
* Cavities 11, 12, and 13 contain self-resetting fuses (circuit breakers) that are only serviceable by an authorized dealer.
2006, 2007
Front Power Distribution Center
Assignment of fuses in the Front Power Distribution Center (2006, 2007)
| Cavity | Cartridge Fuse | Mini Fuse | Description |
|---|---|---|---|
| 1 | — | 20 Amp Yellow | Left High Intensity Discharge (HID) Headlight – if equipped |
| 2 | — | 20 Amp Yellow | Right High Intensity Discharge (HID) Headlight – if equipped |
| 3 | — | 15 Amp Blue | Adjustable Pedals – if equipped |
| 4 | — | 20 Amp Yellow | AC Clutch/Horn |
| 5 | — | 20 Amp Yellow | Headlight Washer – If Equipped |
| 6 | — | 15 Amp Blue | Front Control Module (FCM) |
| 7 | — | 20 Amp Yellow | Fog Lights – if equipped |
| 8 | — | 15 Amp Blue | Lights – License, Park, Side Marker, Stop. Turn |
| 9 | — | 15 Amp Blue | Front Control Module (FCM) |
| 10 | — | 5 Amp Orange | Powertrain Control Module (PCM)/Starter |
| 11 | 25 Amp Clear | Auto Shutdown/ Powertrain Control Module (PCM) | |
| 12 | — | — | — |
| 13 | — | — | — |
| 14 | — | 25 Amp Clear | Powertrain Control Module (PCM) |
| 15 | — | 20 Amp Yellow | Injectors, Ignition Coils |
| 16 | — | — | — |
| 17 | 30 Amp Pink | — | Anti-lock Brakes System (ABS) Valves – if equipped/Powertrain Control Module (PCM) |
| 18 | 30 Amp Pink | — | Windshield Wiper/ Washer |
| 19 | 50 Amp — Red | — | Radiator Fan |
| 20 | 20 Amp Blue | — | Starter |
| 21 | 50 Amp — Red | — | Anti-lock Brakes System (ABS) Pump Motor – if equipped |
| 22 | 40 Amp — Green | — | AC Clutch/Radiator Fan High — Low |
| 23 | 50 Amp — Red | — | High Intensity Lighting (HID) – if equipped |
| 24 | 60 Amp Yellow | — | Radiator Fan – AWD |
| 25 | 30 Amp Pink | — | Front Control Module (FCM) |
| 26 | 20 Amp — Blue | — | Transmission – RLE |
| 27 | 30 Amp Pink | — | Front Control Module (FCM) |
Rear Power Distribution Center
Assignment of fuses in the Rear Power Distribution Center (2006, 2007)
| Cavity | Cartridge Fuse | Mini Fuse | Description |
|---|---|---|---|
| 1 | 60 Amp Yellow | — | Ignition Off Draw (IOD) |
| 2 | 40 Amp Green | — | Battery |
| 3 | — | — | — |
| 4 | 40 Amp Green | — | Battery |
| 5 | 30 Amp Pink | — | Heated Seats – if equipped |
| 6 | — | 20 Amp Yellow | Fuel Pump |
| 7 | — | — | — |
| 8 | — | 15 Amp Blue | Ignition Switch/Airbag Control Module (ACM) |
| 9 | — | 20 Amp Yellow | Console Power Outlet |
| 10 | — | — | — |
| 11* | 25 Amp C/BRKR | — | Cluster – without power memory seat/Driver Seat Switch – with power memory seat/Memory Module – if equipped |
| 12* | 25 Amp C/BRKR | — | Passenger Seat Switch |
| 13* | 25 Amp C/BRKR | — | Door Modules – except base/ Driver Door Lock Switch – base/Driver Express Power Window Switch – if equipped/ Passenger Door Lock Switch – base |
| 14 | 10 Amp Red | AC Heater Control/ Cluster/Sentry Key Remote Keyless Entry | |
| 15 | — | 20 Amp Yellow | Trailer Tow Brake Module – if equipped |
| 16 | — | — | — |
| 17 | — | 20 Amp Yellow | Cluster |
| 18 | — | 20 Amp Yellow | Selectable Power Outlet |
| 19 | — | 10 Amp Red | Stop Lights |
| 20 | — | — | — |
| 21 | — | — | — |
| 22 | — | — | — |
| 23 | — | — | — |
| 24 | — | — | — |
| 25 | — | — | — |
| 26 | — | — | — |
| 27 | — | 10 Amp Red | Airbag/Airbag Control Module (ACM) |
| 28 | — | 10 Amp Red | Curtain Airbag – if equipped |
| 29 | — | 5 Amp Orange | Anti-lock Brakes Module – if equipped/Cluster/Front Control Module (FCM)/Powertrain Control Module (PCM)/Sentry Key Remote Keyless Entry/Stop Lights |
| 30 | — | 10 Amp Red | Door Modules/Power Mirrors – if equipped/ Steering Control Module |
| 31 | — | — | — |
| 32 | — | — | — |
| 33 | — | — | — |
| 34 | — | — | — |
| 35 | — | 5 Amp Orange | Amplifier – if equipped/ Antenna/Ignition Delay/Overhead Console/Passenger Door Lock & Express Power Window Switch – if equipped/Power Mirrors – if equipped/Rain Sensor – if equipped/ Rear Defrost |
| 36 | — | 20 Amp Yellow | Hands Free Phone – if equipped/Media System Monitor DVD – if equipped/Radio/Satellite Receiver – if equipped |
| 37 | — | 15 Amp Blue | Transmission – NAG1 |
| 38 | — | 5 Amp Orange | Analog Clock/Cargo Light/Overhead Console |
| 39 | — | 10 Amp Red | Heated Mirrors – if equipped |
| 40 | — | 5 Amp Orange | Heated Seats – if equipped/Inside Rearview Mirror |
| 41 | — | 10 Amp Red | AC Heater Control/Park Assist – if equipped/Tire Pressure Monitoring – if equipped |
| 42 | 30 Amp Pink | — | Front Blower Motor |
| 43 | 30 Amp Pink | — | Amplifier – if equipped/ Antenna/Rear Defrost |
| 44 | 20 Amp Blue | — | Amplifier – if equipped/ Front Control Module (FCM)/Sunroof – if equipped |
* Cavities 11, 12, and 13 contain self-resetting fuses (circuit breakers) that are only serviceable by an authorized dealer.
2008, 2009
Front Power Distribution Center
Assignment of fuses in the Front Power Distribution Center (2008, 2009)
| Cavity | Cartridge Fuse | Mini-Fuse | Description |
|---|---|---|---|
| 1 | — | 15 Amp Blue | Washer Motor |
| 2 | — | 25 Amp Neutral | Powertrain Control Module (PCM) |
| 3 | — | 25 Amp Neutral | Ignition Run/Start |
| 4 | — | 25 Amp Neutral | Alternator/EGR Solenoid |
| 5 | — | — | — |
| 6 | — | 25 Amp Neutral | Ignition Coils/Injectors/ Short Runner Valve |
| 7 | — | — | — |
| 8 | — | 25 Amp Neutral | Starter |
| 9 | — | — | — |
| 10 | 30 Amp Pink | — | Windshield Wiper |
| 11 | 30 Amp Pink | — | Anti-Lock Brake System (ABS) Valves – If Equipped |
| 12 | 40 Amp Green | — | Radiator Fan |
| 13 | 50 Amp Red | — | Anti-Lock Brake System (ABS) Pump Motor – If Equipped |
| 14 | — / 60 Amp Yellow | — | — / Radiator Fan |
| 15 | 50 Amp Red | — | Radiator Fan |
| 16 | — | — | — |
| 17 | — | — | — |
| 18 | — | — | — |
| 19 | — | — | — |
| 20 | — | — | — |
| 21 | — | — | — |
| 22 | — | — | — |
Rear Power Distribution Center
Assignment of fuses in the Rear Power Distribution Center (2008, 2009)
| Cavity | Cartridge Fuse | Mini-Fuse | Description |
|---|---|---|---|
| 1 | 60 Amp Yellow | — | Ignition Off Draw (IOD) |
| 2 | 40 Amp Green | — | Integrated Power Module (IPM) |
| 3 | — | — | — |
| 4 | 40 Amp Green | — | Integrated Power Module (IPM) |
| 5 | 30 Amp Pink | — | Heated Seats – If Equipped |
| 6 | — | 20 Amp Yellow | Fuel Pump |
| 7 | — | 15 Amp Blue | Rear Heated Seats – If Equipped |
| 8 | — | 15 Amp Blue | Diagnostic Link Connector (DLC) /Wireless Control Module (WCM)/ Wireless Ignition Node (WIN) |
| 9 | — | 20 Amp Yellow | Power Outlet |
| 10 | — | — | — |
| 11* | 25 Amp C/BRKR | — | Cluster – without power memory seat/Driver Seat Switch – with power memory seat/Memory Module – if equipped |
| 12* | 25 Amp C/BRKR | — | Passenger Seat Switch |
| 13* | 25 Amp C/BRKR | — | Door Modules – except base/ Driver Door Lock Switch – base/Driver Express Power Window Switch – if equipped/ Passenger Door Lock Switch – base |
| 14 | — | 10 Amp Red | AC Heater Control/ Cluster/Security Module – If Equipped |
| 15 | — | 20 Amp Yellow | Trailer Tow Brake Module – If Equipped |
| 16 | — | — | — |
| 17 | — | 20 Amp Yellow | Cluster |
| 18 | — | 20 Amp Yellow | Selectable Power Outlet |
| 19 | — | 10 Amp Red | Stop Lights |
| 20 | — | — | |
| 21 | — | — | |
| 22 | — | — | |
| 23 | — | — | |
| 24 | — | — | |
| 25 | — | — | |
| 26 | — | — | |
| 27 | — | 10 Amp Red | Occupant Restraint Controller (ORC) |
| 28 | — | 10 Amp Red | Ignition Run |
| 29 | — | 5 Amp Orange | Adaptive Cruise Control (ACC) – If Equipped/ Cluster/Electronic Stability Program (ESP) – If Equipped/Powertrain Control Module (PCM)/ STOP LIGHT Switch |
| 30 | — | 10 Amp Red | Door Modules/Power Mirrors/Steering Control Module (SCM) |
| 31 | — | — | — |
| 32 | — | — | — |
| 33 | — | — | — |
| 34 | — | — | — |
| 35 | — | 5 Amp Orange | Antenna Module – If Equipped /Power Mirrors/Rain Sensor – If Equipped |
| 36 | — | 20 Amp Yellow | Hands-Free Phone – If Equipped/Video Monitor – If Equipped/Radio |
| 37 | — | 15 Amp Blue | Transmission |
| 38 | — | 10 Amp Red | Analog Clock/Cargo Light/Satellite Receiver (SDARS) Video – If Equipped/Vehicle Information Module – If Equipped |
| 39 | — | 10 Amp Red | Heated Mirrors – If Equipped |
| 40 | — | 5 Amp Orange | Auto Inside Rearview Mirror – If Equipped/ Heated Seats – If Equipped/Switch Bank |
| 41 | — | 10 Amp Red | AC Heater Control/ Headlights/Park Assist -If Equipped/Tire Pressure Monitoring – If Equipped/Occupant Restraint Controller (ORC) |
| 42 | 30 Amp Pink | — | Front Blower Motor |
| 43 | 30 Amp Pink | — | Rear Window Defroster |
| 44 | 20 Amp Blue | — | Amplifier – If Equipped/ Sunroof – If Equipped |
* Cavities 11, 12, and 13 contain self-resetting fuses (circuit breakers) that are only serviceable by an authorized dealer.
2010
Front Power Distribution Center
Assignment of fuses in the Front Power Distribution Center (2010)
| Cavity | Cartridge Fuse | Mini-Fuse | Description |
|---|---|---|---|
| 1 | — | 15 Amp Blue | Washer Motor |
| 2 | — | 25 Amp Neutral | Powertrain Control Module (PCM) |
| 3 | — | 25 Amp Neutral | Ignition Run/Start |
| 4 | — | 25 Amp Neutral | Alternator/EGR Solenoid |
| 5 | — | — | — |
| 6 | — | 25 Amp Neutral | Ignition Coils/Injectors/ Short Runner Valve |
| 7 | — | — | — |
| 8 | — | 25 Amp Neutral | Starter |
| 9 | — | — | — |
| 10 | 30 Amp Pink | — | Windshield Wiper |
| 11 | 30 Amp Pink | — | Anti-Lock Brake System (ABS) Valves – If Equipped |
| 12 | 40 Amp Green | — | Radiator Fan |
| 13 | 50 Amp Red | — | Anti-Lock Brake System (ABS) Pump Motor – If Equipped |
| 14 | — / 60 Amp Yellow | — | — / Radiator Fan |
| 15 | 50 Amp Red | — | Radiator Fan |
| 16 | — | — | — |
| 17 | — | — | — |
| 18 | — | — | — |
| 19 | — | — | — |
| 20 | — | — | — |
| 21 | — | — | — |
| 22 | — | — | — |
Rear Power Distribution Center
Assignment of fuses in the Rear Power Distribution Center (2010)
| Cavity | Cartridge Fuse | Mini-Fuse | Description |
|---|---|---|---|
| 1 | 60 Amp Yellow | – | Ignition Off Draw (IOD) Cavity 1 of the Rear Power Distribution Center contains a black IOD fuse needed for vehicle processing during assembly. The service replacement part is a 60 Amp yellow cartridge fuse. |
| 2 | 40 Amp Green | – | Integrated Power Module (IPM) |
| 3 | – | – | – |
| 4 | 40 Amp Green | – | Integrated Power Module (IPM) |
| 5 | 30 Amp Pink | – | Heated Seats – If Equipped |
| 6 | – | 20 Amp Yellow | Fuel Pump |
| 7 | – | 15 Amp Blue | Rear Heated Seats – If Equipped |
| 8 | 15 Amp Blue | Diagnostic Link Connector (DLC)/Wireless Control Module (WCM)/ Wireless Ignition Node (WIN) | |
| 9 | – | 20 Amp Yellow | Power Outlet |
| 10 | – | – | – |
| 11 * | 25 Amp C/BRKR | – | Cluster – without power memory seat/Driver Seat Switch – with power memory seat/Memory Module – if equipped |
| 12 * | 25 Amp C/BRKR | – | Passenger Seat Switch |
| 13 * | 25 Amp C/BRKR | – | Door Modules – except base/ Driver Door Lock Switch – base/Driver Express Power Window Switch – if equipped/ Passenger Door Lock Switch – base |
| 14 | – | 10 Amp Red | AC Heater Control/ Cluster/Security Module – If Equipped |
| 15 | – | 20 Amp Yellow | Trailer Tow Brake Module – If Equipped |
| 16 | – | – | – |
| 17 | – | 20 Amp Yellow | Cluster |
| 18 | – | 20 Amp Yellow | Selectable Power Outlet |
| 19 | – | 10 Amp Red | Stop Lights |
| 20 | – | – | – |
| 21 | – | – | – |
| 22 | – | – | – |
| 23 | – | – | – |
| 24 | – | – | – |
| 25 | – | – | – |
| 26 | – | – | – |
| 27 | – | 10 Amp Red | Occupant Restraint Controller (ORC) |
| 28 | – | 10 Amp Red | Ignition Run, AC Heater Control/Headlights/ Park Assist – If Equipped/Tire Pressure Monitoring – If Equipped /Occupant Restraint Controller (ORC) |
| 29 | – | 5 Amp Orange | Adaptive Cruise Control (ACC) – If Equipped/ Cluster/Electronic Stability Program (ESP) – If Equipped/Powertrain Control Module (PCM)/ STOP LIGHT Switch |
| 30 | – | 10 Amp Red | Door Modules/Power Mirrors/Steering Control Module (SCM) |
| 31 | – | – | – |
| 32 | – | – | – |
| 33 | – | – | – |
| 34 | – | – | – |
| 35 | – | 5 Amp Orange | Antenna Module – If Equipped /Power Mirrors/Rain Sensor – If Equipped |
| 36 | – | 25 Amp Natural | Hands-Free Phone – If Equipped/Video Monitor – If Equipped /Radio |
| 37 | – | 15 Amp Blue | Transmission |
| 38 | – | 10 Amp Red | Analog Clock/Cargo Light/Satellite Receiver (SDARS) Video – If Equipped/Vehicle Information Module – If Equipped |
| 39 | – | 10 Amp Red | Heated Mirrors – If Equipped |
| 40 | – | 5 Amp Orange | Auto Inside Rearview Mirror – If Equipped/ Heated Seats – If Equipped/Switch Bank |
| 41 | – | 15 Amp Blue | AWD Module – If Equipped |
| 42 | 30 Amp Pink | – | Front Blower Motor |
| 43 | 30 Amp Pink | – | Rear Window Defroster |
| 44 | 20 Amp Blue | – | Amplifier – If Equipped/Sunroof – If Equipped |
* Cavities 11, 12, and 13 contain self-resetting fuses (circuit breakers) that are only serviceable by an authorized dealer.
Conclusion
For owners and enthusiasts of classic Chrysler 300/300C (Mk1/LX) 2005-2010, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Chrysler’s craftsmanship and innovation in the automotive industry during that era.
