2015 Charger, 300 & Challenger ECM: A Guide to VIN Programming, Recalls, and Replacement

Symptoms of a Failing ECM

A faulty Engine Control Module can create symptoms that often mimic other failing parts, making diagnosis tricky. If you experience several of the following issues, the ECM should be a primary suspect.

• Check Engine Light: An illuminated Check Engine Light is a common symptom. Codes specifically pointing to an internal module failure, such as P0601 (Internal Control Module Memory Check Sum Error) or P0606 (ECM/PCM Processor Fault), are strong indicators of a bad ECM.
• Engine Stalling or Shutting Off: The vehicle may stall unexpectedly while driving or at idle. This can be intermittent and happen without warning.
• No-Start or Intermittent Starting: The engine may crank but refuse to start, or it may start unreliably. This happens because the ECM is not correctly commanding the fuel and spark systems.
• Poor Engine Performance: You may notice a significant loss of power, hesitation during acceleration, or a rough, stumbling idle.
• Reduced Fuel Economy: A sudden, unexplained drop in gas mileage can be caused by the ECM failing to manage the air-fuel mixture correctly.
• Erratic Transmission Shifting: On automatic transmission models, the ECM controls shifting. A bad module can cause hard, delayed, or incorrect gear shifts.
• Communication Failure: In some cases, a diagnostic scan tool may be unable to communicate with the ECM, which points directly to a problem with the module itself.
🎬 Watch: A visual guide to common ECM failure symptoms

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

For the 2015 model year, there is one major safety recall directly related to the ECM software that owners of the Dodge Charger, Chrysler 300, and Dodge Challenger should be aware of.

NHTSA Recall 18V-332 (FCA Campaign U60): Cruise Control May Not Disengage

A significant software flaw in the Powertrain Control Module could prevent the cruise control from being deactivated. If a short circuit occurs while cruise control is active, the driver may not be able to turn it off by pressing the brake or the button. This could cause the vehicle to maintain speed or accelerate unexpectedly, increasing the risk of a crash.

Affected Vehicles: 2014-2018 Dodge Charger, 2014-2018 Chrysler 300, and 2015-2018 Dodge Challenger.
Solution: Dealers will perform a software update on the Powertrain Control Module free of charge. It is crucial to have this recall performed, as it directly impacts vehicle safety. You can check if your vehicle is affected by entering your VIN on the NHTSA website.

ECM Programming: The Most Critical Step

For 2015 and newer Chrysler, Dodge, and Jeep vehicles, the ECM is electronically tied to the vehicle's Vehicle Identification Number (VIN) and its anti-theft system (also known as SKIM or PATS). You cannot simply swap a used ECM from another vehicle and expect it to work. The vehicle will not start.

Programming Options:

1. Pre-Programmed Modules: Many online retailers sell used or remanufactured ECMs that are pre-programmed to your vehicle. You provide your VIN at the time of purchase, and they flash the correct software and security information to the module before shipping it. This makes the installation "plug-and-play" and is often the easiest and most cost-effective solution for DIYers.
2. Dealership or Independent Shop: You can purchase a used or new module and have a dealership or a properly equipped independent auto repair shop program it for you. They use specialized tools like FCA's wiTECH software to perform this service. 🎬 See how a professional programs a new Dodge or Chrysler computer This is a reliable option but typically more expensive.

Replacement Guide

Physically replacing the ECM on a 2015 Charger, 300, or Challenger is a straightforward job that can be done with basic hand tools. The location and procedure are nearly identical across all three models.

Tools Required:

• Ratchet with 10mm and 13mm sockets
• Plastic trim removal tool

Location: The ECM is located in the engine bay on the passenger side, underneath the plastic cowl panel near the base of the windshield and strut tower.

Step-by-Step Instructions:

1. Disconnect the Battery: The battery is located in the trunk. Use a 10mm socket to disconnect the negative battery terminal to prevent electrical damage.
2. Remove the Cowl Cover: Use a plastic trim tool to remove the plastic push pins holding the cowl cover in place. Lift the cover off to expose the ECM.
3. Unbolt the ECM Bracket: A single 13mm bolt typically holds the ECM and its mounting bracket to the strut tower. Remove this bolt. There may also be two 10mm bolts securing the module to its bracket that need to be removed.
4. Disconnect the Connectors: The ECM has two large electrical connectors, often with red locking tabs. Push the center release button on the connector and slide the locking tab outwards. This will lever the connector off the module.
5. Remove the ECM: With the connectors unplugged and bolts removed, the ECM can be lifted out of the vehicle.
6. Installation: Installation is the reverse of removal. Secure the new ECM, plug in the connectors until the locking tabs click, re-bolt the bracket, reinstall the cowl cover, and finally, reconnect the battery.

Buying a Used Engine Control Module (ECM)

Purchasing a used OEM ECM is an excellent way to save a significant amount of money compared to a new part from the dealership. However, there are critical factors to consider for this specific component.

• Programming is Everything: The single most important factor is programming. A used ECM is just a paperweight without it. Either buy from a seller who will pre-program it to your VIN or have a solid plan to get it programmed by a professional immediately after purchase.
• Match the Part Number: While programming is key, it's always best practice to match the OEM part number from your original module. The main hardware numbers for these vehicles are often 05150883AC or 05150883AD, but many other numbers may supersede or be compatible. Confirm with the seller that the part is correct for your year, make, model, and engine.
• Physical Inspection: When you receive the part, inspect it for any signs of physical damage. Look for corrosion on the pins, cracks in the casing, or bent connector pins. Do not install a module that looks damaged.
• Reputable Sellers: Buy from established sellers who specialize in automotive electronics and offer a warranty. A warranty protects you if the module is dead on arrival or fails shortly after installation.

Cost Comparison

The cost of replacing an ECM can vary dramatically depending on the path you choose.

Frequently Asked Questions (FAQ)