Is Your 2015 Chrysler 300, Charger, or Challenger Running Rough?
If you’re dealing with frustrating issues like a persistent check engine light, stalling, misfires, or a complete no-start condition, a failing Engine Control Module (ECM) is often the culprit. The ECM is the brain of your vehicle’s 3.6L engine, managing everything from fuel injection and ignition timing to transmission shifting and emissions. When it fails, it can cause a wide range of performance problems that can be difficult to diagnose. This replacement 2015 300 Engine Computer is the definitive solution to restore your vehicle’s performance and reliability.
From the Diagnostic Bay
We had a 2015 Dodge Charger with the 3.6L come in that was a real head-scratcher. The customer reported intermittent stalling at red lights and a check engine light that would come and go. We checked the usual suspects—spark plugs, coils, fuel pump—and everything tested fine. Scans showed a flurry of communication error codes (U-codes) between various modules. After verifying the wiring harness and all major grounds were solid, we isolated the issue to the ECM itself. The internal processor was failing intermittently, causing it to lose communication with the rest of the car. Swapping in a pre-programmed ECM like this one resolved all the issues instantly. The car ran smoothly, and the communication codes never returned.
Symptoms of a Failing 2015 3.6L Engine Computer
A faulty ECM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your engine computer needs replacement. Look out for:
- ✔ Check Engine Light: The light is on, and you may have codes related to module communication (U-codes) or multiple, unrelated sensor failures.
- ✔ Engine Stalling or Misfiring: The engine may stall unexpectedly while driving or at idle, and you might feel random misfires or hesitation during acceleration.
- ✔ No-Start Condition: The engine cranks but refuses to start, even with a good battery and fuel supply.
- ✔ Poor Performance & Fuel Economy: A noticeable drop in power, sluggish acceleration, and a significant decrease in your miles per gallon (MPG).
- ✔ Erratic Transmission Behavior: The ECM works with the Transmission Control Module (TCM), so a failing ECM can cause harsh shifting, delayed engagement, or getting stuck in gear.
- ✔ Cooling Fans Running Constantly: The ECM may default to running the cooling fans at full speed as a fail-safe measure, even when the engine is cold.
The Plug & Play Solution You Need
Forget about expensive dealership visits, towing fees, and the high cost of programming a new module. This 2015 300 Engine Computer is delivered to your door fully programmed and ready for installation. We use your vehicle’s unique Vehicle Identification Number (VIN) and current mileage to flash the module before it ships. This ensures that it communicates perfectly with your car’s existing security systems (SKIM), gauges, and other electronics. The process is simple:
- Place your order and provide us with your VIN and mileage.
- We program the module specifically for your vehicle.
- You receive the module, disconnect the battery, swap out the old unit, and reconnect the battery.
- Start your car and drive away. No further steps are needed.
Guaranteed Compatibility
This module is a direct replacement for a range of part numbers, ensuring a perfect fit and function for your vehicle. It is compatible with the following vehicles equipped with the 3.6L engine:
- 2015 Chrysler 300
- 2015 Dodge Challenger
- 2015 Dodge Charger
It replaces the following part numbers: 05150883AC, 05150883AD, 68280995AA, 68280995AB, 68280995AC, 68280995AD, 68230335, 68230334, 68230333, 68230332, 68230331, 68230330, 68230329, 68230328, 68230327, 68230326, 68230325, 68230324, 68230323, 68230322, 68230321, 68230320, 68230316AE, 68230307AE.
Frequently Asked Questions
Is this engine computer truly plug-and-play?
Yes, absolutely. We pre-program the module using the VIN you provide during checkout. This process, often called flashing, ensures the computer has the correct software and security information to work with your specific vehicle without any need for a trip to the dealership for additional programming.
Where is the ECM located on my 2015 Chrysler 300 / Charger?
On most 2015 Chrysler 300 and Dodge Charger models with the 3.6L engine, the Engine Control Module (ECM) is typically located in the engine bay, on the passenger side, near the firewall or shock tower. It will have several large electrical connectors attached to it. Always disconnect the battery before attempting to remove or install the module.
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. The VIN is essential for loading the correct factory software and security keys, and the mileage ensures your odometer reading remains accurate. You can typically find your VIN on your vehicle’s dashboard (visible through the windshield) or on the driver’s side door jamb sticker.
Do I need to send my old computer (core) back?
No core charge or return is required for this part. You can keep your old module or recycle it locally.
How can I be certain my old ECM is the problem?
While the symptoms listed above are strong indicators, we always recommend a thorough diagnosis by a qualified mechanic. This includes checking for bad grounds, wiring issues, and other sensor failures that can sometimes mimic ECM failure. If all other potential causes have been ruled out, replacing the ECM is the next logical step.