Is your 2005 Chrysler 300 or Dodge Magnum experiencing erratic behavior, poor performance, or a persistent check engine light? The Engine Control Module (ECM), the vehicle’s main computer, is often the source of these frustrating issues. This replacement ECM is the definitive solution, arriving at your doorstep fully programmed to your vehicle’s specific VIN and mileage. This means no expensive trips to the dealership for programming—it’s a true plug-and-play fix that gets your V8-powered car back to its factory-spec performance.
From the Diagnostic Bay
We had a 2005 Magnum with the 5.7L HEMI come in with a complaint of intermittent stalling at stoplights and a random P0601 internal controller error code. The owner had already replaced the throttle body and a few sensors with no luck. After confirming the power and ground circuits to the ECM were solid, we knew the module itself was failing internally. Swapping in a pre-programmed ECM like this one solved the issue in under 15 minutes. The customer was thrilled to have his car running reliably again without the guesswork and expense of chasing other parts.
Common Symptoms of a Failing 2005 Chrysler 300 ECM
- ✔ Persistent Check Engine Light (CEL) that won’t clear
- ✔ Engine stalling or shutting off while driving
- ✔ Rough or unstable idling
- ✔ Noticeable decrease in fuel economy
- ✔ Hesitation or stumbling during acceleration
- ✔ Difficulty or failure to start the engine (no-start condition)
- ✔ Automatic transmission shifting problems
- ✔ Communication errors with diagnostic scan tools
The Plug-and-Play Advantage
The most significant challenge when replacing a modern vehicle’s computer is the security and programming. The ECM is linked to your vehicle’s anti-theft system (SKIM) and programmed with its unique VIN. Our service eliminates this hurdle completely. We handle all the programming for you before the part is shipped. When you receive your replacement 2005 Chrysler 300 ECM, the process is as simple as disconnecting the battery, swapping the modules, and reconnecting the battery. Your car will start and run correctly without any additional procedures.
Guaranteed Compatibility
This engine computer is a direct replacement for a wide range of original part numbers, ensuring a perfect match for your vehicle. It is compatible with the following part numbers:
04606837AD, 04606837AE, 05094425AD, 05094425AF, 05094425AG, 05094425AH, 05094425AI, 04896418AC, 04896418AD, 04896418AE, 04896418AF, 04896418AG, 04896418AH, 04896418AI, 04896418AJ, 04896418AK, 04896417AA, 04896417AB, 04896417AC, 04896417AD, 04896417AE, 04896417AF, 04896417AG
Fitment Details
This module is specifically for 2005 model year vehicles built from June 28th, 2004, onwards and equipped with an 8-cylinder engine.
- Chrysler 300: 2005, 8 Cylinder Engine
- Dodge Magnum: 2005, 8 Cylinder Engine
Don’t let a faulty computer keep your car off the road. This pre-programmed 2005 Chrysler 300 ECM is the most efficient and reliable way to restore your vehicle’s brainpower and driving performance. Order yours today and experience the difference a correctly functioning engine computer makes.
Frequently Asked Questions
Is this ECM really plug-and-play?
Yes, absolutely. We program the module with the VIN and mileage you provide during checkout. This ensures it communicates correctly with your car’s other systems, including the anti-theft immobilizer. No further programming or dealer visit is required.
Where is the ECM located on my 2005 Chrysler 300?
The Engine Control Module is located in the engine compartment on the driver’s side (LH side), near the front firewall and shock tower. It is a silver metal box with several large electrical connectors.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of your original ECM (common codes include P0600-P0606), then this replacement module will resolve the issue. However, if the light is on due to a faulty sensor or another component, that separate issue will still need to be addressed.
What information do you need from me to program the module?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN) and the current mileage. Please provide this information accurately during the checkout process to ensure proper programming.
How do I know for sure that my ECM is the problem?
While the symptoms listed are strong indicators, a definitive diagnosis is best. This typically involves a professional mechanic checking for specific diagnostic trouble codes (DTCs), verifying power and ground signals at the ECM connector, and ruling out other potential causes like wiring issues or failed sensors.