Is Your 2014 Chrysler 300 or Dodge Charger Running Erratically?
If you’re experiencing frustrating issues like a persistent check engine light, poor engine performance, stalling, or a no-start condition in your 2014 Chrysler 300 or Dodge Charger with the 3.6L V6 engine, a failing Engine Control Module (ECM) is a very likely culprit. The ECM is the brain of your vehicle, controlling everything from fuel injection and ignition timing to transmission shifting. When it fails, it can cause a cascade of problems that are difficult to diagnose and can leave you stranded. This direct-fit replacement ECM, part number 05150787AC, is the definitive solution to restore your vehicle’s performance and reliability.
Common Symptoms of a Failing ECM
A faulty engine computer can manifest in various ways. If you’re noticing any of the following symptoms, it’s time to consider a replacement:
- ✔ Check Engine Light: The most common sign, often with communication-related fault codes like U0100 or specific sensor circuit codes.
- ✔ No-Start or Hard Starting: The engine may crank but fail to start, or take an unusually long time to fire up.
- ✔ Poor Performance & Fuel Economy: You might notice a significant drop in power, hesitation during acceleration, and a noticeable decrease in your miles per gallon (MPG).
- ✔ Rough Idling or Stalling: The engine may run unevenly at a stop or shut off unexpectedly while driving or idling.
- ✔ Erratic Transmission Behavior: Since the ECM communicates with the transmission control module, a faulty unit can cause harsh shifting, delayed engagement, or getting stuck in a gear.
- ✔ Intermittent Electrical Issues: Seemingly random electrical gremlins can sometimes be traced back to a failing central computer.
From the Diagnostic Bay
We recently had a 2014 Dodge Charger 3.6L towed to the shop with a classic “crank, no-start” complaint. The owner had already replaced the battery and checked the fuses. Our initial scan revealed a U0100 code, indicating a loss of communication with the ECM. After verifying the power and ground circuits to the module were intact, we knew the internal circuitry of the ECM had failed. We installed a pre-programmed unit just like this one. After connecting the battery, the car started immediately and ran perfectly. This plug-and-play solution saved the customer hundreds in diagnostic time and dealership programming fees.
The Plug-and-Play Solution for Your 2014 Chrysler 300 ECM
The biggest hurdle in replacing an engine computer has always been the need for expensive, dealer-specific programming. Our modules eliminate this step entirely. We handle all the programming for you before the part ever ships. Simply provide us with your vehicle’s Vehicle Identification Number (VIN) and current mileage during checkout, and we will flash the module with your car’s specific software. When it arrives, the installation is a straightforward mechanical swap.
- Disconnect the Battery: Always start by disconnecting the negative battery terminal for safety.
- Locate and Remove the Old ECM: The ECM is typically found in the engine bay. Disconnect the electrical connectors and unbolt it from its mounting bracket.
- Install the New ECM: Bolt the new module into place and securely reconnect the electrical harnesses.
- Reconnect the Battery: Re-attach the negative battery terminal.
- Start Your Vehicle: Your car is now ready to start and drive. No additional steps or trips to the mechanic are required.
This module is a direct replacement for a wide range of part numbers, ensuring compatibility and proper function. It is compatible with: 05150787AA, 05150787AB, 05150787AC, 68214293AA, 68214293AB, 68214293AC, 68214293AD, 68214293AE, 68214293AF, 68214293AG, 68214293AH, 68214217AA, 68214217AB, 68214217AC, 68214217AD, 68214217AE, 68214217AF, 68214216AA, 68214216AB, 68214216AC, 68214216AD, and 68214217AG.
Frequently Asked Questions
What is an ECM and what does it do?
The Engine Control Module (ECM), also known as the Powertrain Control Module (PCM), is a powerful computer that serves as the central command for your vehicle’s engine. It takes data from sensors all over the car and uses it to control fuel delivery, spark timing, emissions systems, and more to ensure the engine runs efficiently and cleanly.
Is this ECM truly “Plug and Play”?
Yes. We program the module with your car’s specific VIN and software before shipping. This means you can install it yourself without needing any special tools or a trip to the dealership for programming. It is ready to work as soon as it’s installed.
Where is the ECM located on my 2014 Chrysler 300?
On the 2014 Chrysler 300 and Dodge Charger with the 3.6L engine, the ECM is typically located in the engine compartment, on the passenger side, near the firewall or 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 on due to an internal failure of the original ECM, then yes, this replacement part will resolve the issue and the light. However, if the light is on due to a faulty sensor or other component, that separate issue will still need to be addressed.
Do I need to perform a key relearn procedure?
No. Because we program the unit to your VIN, it will recognize your existing keys, and no additional security relearn or key programming is necessary.