Is Your 3.6L Pentastar Running Rough? The Engine Computer Might Be the Culprit.
The Engine Control Module (ECM), also known as the Engine Computer or ECU, is the electronic brain of your 2015 Dodge Challenger, Charger, or Chrysler 300. It meticulously manages everything from fuel injection and ignition timing to transmission shifts and emissions controls. When this critical component begins to fail, it can cause a cascade of confusing and frustrating problems, often mimicking other sensor or mechanical failures. If you’re tired of chasing phantom issues and want a reliable solution, you’ve come to the right place.
From the Diagnostic Bay
We recently had a 2015 Charger 3.6L come into the shop that was a classic case of “parts cannon” diagnostics. The owner had replaced two oxygen sensors, a camshaft position sensor, and even the throttle body trying to fix an intermittent stalling issue and a persistent P0606 (Internal Control Module Processor Fault) code. The car would run fine for a day, then suddenly die at a stoplight. After confirming all sensor inputs were good and the wiring harness was intact, we pinpointed the root cause: the original ECM was failing internally. Replacing it with a properly programmed unit solved every single issue instantly. This story highlights how a failing ECM can send you on a wild goose chase, costing you time and money on unnecessary parts.
Common Symptoms of a Failing 2015 Challenger Engine Computer
- ✔ Check Engine Light: An illuminated CEL is the most common sign, often with communication-related codes (U-codes) or internal processor fault codes (P06xx series).
- ✔ No-Start or Hard Starting: The engine may crank but refuse to start, or take an unusually long time to fire up, either hot or cold.
- ✔ Engine Stalling: Your vehicle may stall unexpectedly while driving or when coming to a stop.
- ✔ Poor Performance & Fuel Economy: Noticeable loss of power, hesitation during acceleration, and a sudden drop in MPG are strong indicators.
- ✔ Rough or Erratic Idle: The engine may idle too high, too low, or fluctuate unpredictably.
- ✔ Transmission Shifting Problems: The ECM works with the TCM, and a fault can lead to harsh or incorrect gear changes.
- ✔ Intermittent Issues: Problems that appear and disappear with changes in temperature or driving time often point to a failing electronic module.
The Direct-Fit, Plug & Play Solution
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and hassle out of the repair process. Before shipping, we professionally program this module with your vehicle’s specific Vehicle Identification Number (VIN) and current mileage. This critical step ensures that the ECM communicates seamlessly with all other modules in your vehicle, like the instrument cluster, anti-lock brakes, and security system. When you receive your replacement 2015 Challenger Engine Computer, the process is simple:
- Disconnect the vehicle’s battery.
- Remove the old, faulty module.
- Install this pre-programmed replacement module.
- Reconnect the battery.
That’s it. No expensive trips to the dealership for programming, no special tools required. You can restore your vehicle’s performance and reliability right in your own driveway.
Guaranteed Fitment and Compatibility
This module is a direct replacement for 2015 Dodge Challenger, Dodge Charger, and Chrysler 300 models equipped with the 3.6L V6 engine. It is compatible with a wide range of original part numbers, ensuring you get the correct component for your vehicle. Please verify your part number against the list below:
Compatible 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 unit truly “Plug and Play”?
Yes. We pre-program the module using the VIN you provide during checkout. This ensures it’s ready for installation upon arrival, with no further dealer or locksmith programming required for the engine to start and run correctly.
What information do you need from me for programming?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN) and the current mileage. You can typically find the VIN on your driver’s side dashboard (visible through the windshield) or on your vehicle’s registration or insurance card.
Will this fix my specific check engine light codes?
This module will resolve issues and codes directly caused by a faulty ECM, such as internal processor errors (e.g., P0606) or communication faults. However, it will not fix problems caused by other faulty components (e.g., a bad O2 sensor). It is crucial to have your vehicle properly diagnosed before ordering to ensure the ECM is the root cause of your problem.
Where is the ECM located on my 2015 Challenger/Charger/300?
On these 3.6L models, the ECM is typically located in the engine bay, on the passenger side, near the firewall or shock tower. It is a metal box with several large electrical connectors. Always disconnect the battery before attempting to remove or install the module.
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 the factory security system will function normally without any additional steps required.