Learn about Chrysler 300M 1999-2004 fuse box and relay’s locations, functions, and maintenance tips for optimal vehicle electrical system.
The Chrysler 300M (1999-2004) is a full-sized luxury sedan known for its sleek, aerodynamic body style and spacious interior. It comes in a four-door sedan body style, offering a combination of sportiness and comfort. Key features include leather seating, premium audio systems, and advanced climate control, all supported by a sophisticated electrical system.
The car’s fuse box, located in the engine compartment and under the dashboard, protects vital systems like the power windows, seats, and infotainment system. If any system experiences an overload, the fuse blows to prevent damage.
Relays in the 300M control high-power components like the starter motor, fuel pump, and cooling fans. These relays act as electrical switches, allowing low-power signals to control more demanding systems. Faulty relays can cause problems such as the engine not starting or cooling systems malfunctioning, leading to potential overheating.
Regular inspection of the fuses and relays ensures that the Chrysler 300M’s advanced electrical features and body systems function smoothly, providing the luxury and performance expected from this model.
MUST READ: DYI – How to Check Car Fuses?
(1999-2004) Chrysler 300M 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 300M 1999-2004 fuse assignment
- Cigar lighter (power outlet) fuses in the Chrysler 300M are the fuse №6 in the Instrument panel fuse box and fuse Y in the engine compartment.
Year of production: from 1999, 2000, 2001, 2002, 2003, 2004
Interior fuse box
Fuse box location
It is behind the end cover on the left side of the instrument panel.
Pull the cover straight away from the instrument panel for access to the fuses.
Fuse Box Diagram
Assignment of fuses in the interior fuse box
| Cavity | Amp | Circuits |
|---|---|---|
| 1 | 10 Amp Red | Transmission Controller, Gauges, Autostick |
| 2 | 10 Amp Red | Right High Beam Headlight |
| 3 | 10 Amp Red | Left High Beam Headlight |
| 4 | 10 Amp Red | Radio, CD Player |
| 5 | 10 Amp Red | Washer Motor |
| 6 | 15 Amp Lt. Blue | Power Outlet |
| 7 | 20 Amp Yellow | Tail, License, Parking, Illumination Lights, Instrument Cluster |
| 8 | 10 Amp Red | Airbag |
| 9 | 10 Amp Red | Turn Signal Lights, Turn Signal/Hazard Indicator |
| 10 | 15 Amp Lt. Blue | Right Low Beam |
| 11 | 20 Amp Yellow | High Beam Relay, High Beam Indicator, High Beam Switch |
| 12 | 15 Amp Lt. Blue | Left Low Beam Headlight |
| 13 | 10 Amp Red | Fuel Pump Relay, Power Train Control Module |
| 14 | 10 Amp Red | Cluster, Day/Night Mirror, Sunroof, Overhead Console, Garage Door Opener, Body Control Module |
| 15 | 10 Amp Red | Daytime Running Light Module (Canada) |
| 16 | 20 Amp Yellow | Fog Light Indicator |
| 17 | 10 Amp Red | ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control, |
| 18 | 20 Amp Yellow | Power Amplifier, Horn |
| 19 | 15 Amp Lt. Blue | Overhead Console, Garage Door Opener, Trunk, Overhead, Rear Reading, and Visor Vanity Lights, Trunk Release Solenoid, Power Mirrors, Power Door Locks, Body Control Module, Aspirator Motor |
| 20 | 20 Amp Yellow | Brake Lights |
| 21 | 10 Amp Red | Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay |
| 22 | 10 Amp Red | Airbag |
| 23 | 30 Amp Green | Blower Motor, ATC Power Module |
| CB1 | 20 Amp C/BRKR | Power Window Motors |
| CB2 | 20 Amp C/BRKR | Power Door Lock Motors, Power Seats |
Power Distribution Center
Fuse box location
A Power Distribution Center is located in the engine compartment.
This center contains fuses and relays for circuits that operate only under the hood
A label which identifies these components is located on the underside of the cover
Fuse Box Diagram
Assignment of fuses in the engine compartment
| № | Amp Rating | Description |
|---|---|---|
| A | 50 | Rear Window Defogger Relay, Body Control Module, Manual Temperature Control Head |
| B | 30 or 40 | Air Conditioner Compressor Clutch Relay, Radiator Fan Relay (High Speed) |
| C | 30 | High Beam Headlamp Relay (Fuse: “2”, “3”), Fuse: “15”, “16” |
| D | 40 | Low Beam Headlamp Relay (Fuse: “10”, “11”, “12”), “CB2”, Dorr Lock Relay, Door Unlock Relay, Driver Door Unlock Relay |
| E | 40 | Radiator Fan Relay (Low Speed) |
| F | 20 or 30 | Fuse “Y”, “X” / Spare Relay |
| G | 40 | Starter Relay, Fuel Pump Relay, Ignition Switch (Fuse: “1”, “4”, “5”, “6”, “13”, “14”, “21”, “22”, “V”) |
| H | 30 | ABS |
| I | 30 | Fuse: “19”, “20” |
| J | 40 | Ignition Switch (Fuse: “8”, “9”, “17”, “23”, “CB1”) |
| K | 40 | ABS |
| L | 40 | Fuse: “7”, “18” |
| M | 40 | Front Wiper On/Off Relay, Front Wiper High/Low Relay, Body Control Module |
| N | 30 | Automatic Shut Down Relay, Powertrain Control Module |
| O | 20 | Combination Flasher (Hazard) |
| P | 30 | Export: Headlamp Washer Relay, Body Control Module |
| Q | 20 | Transmission Control Relay |
| R | 20 | Export: Rear Fog Lamp Relay |
| S | 20 | Fuel Injector, Ignition Coil, Capacitor, Short Runner Valve Solenoid (3.5 L), Manifold Tuning Valve |
| T | 20 | Powertrain Control Module |
| U | 20 | – |
| V | 10 | Starter Relay, Powertrain Control Module |
| W | 10 | Automatic Shut Down Relay |
| X | 20 | Spare Relay |
| Y | 15 | Power Outlet |
Conclusion
For owners and enthusiasts of classic Chrysler 300M 1999-2004, 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.