2016-2020 Dodge Journey 2.4L ECM: Programming, Recalls, and Failure Guide

Symptoms of a Failing Dodge Journey ECM

A failing Engine Control Module can cause a wide range of problems, from a simple check engine light to a vehicle that won't start at all. Because the ECM controls so many different systems, symptoms can sometimes be mistaken for other issues. If you experience several of these symptoms, the ECM could be the culprit.

• Check Engine Light: An illuminated Check Engine Light is one of the most common signs of an ECM problem. Specific diagnostic trouble codes (DTCs) pointing to internal module failure are a strong indicator.
• Engine Stalling or Misfiring: The engine may stall unexpectedly, either while driving or at an idle. This can be intermittent and may be related to a faulty sensor input or an internal ECM issue.
• No-Start or No-Crank Condition: You may turn the key or press the start button and get nothing, or the engine may crank but refuse to start. This happens when the ECM fails to control the ignition or fuel systems, or when it loses communication with other modules.
• Poor Engine Performance: A noticeable loss of power, poor acceleration, and reduced fuel economy can all be traced back to a faulty ECM that is not managing the engine correctly.
• Erratic Transmission Shifting: Since the PCM also controls the transmission, you might experience harsh shifting, delayed engagement, or the transmission getting stuck in one gear (limp mode).
• Communication Errors: A technician using a scan tool may find that they cannot communicate with the ECM, or that there are multiple communication-related 'U' codes stored.

Common Diagnostic Trouble Codes (DTCs)

While many codes can indicate a problem that affects the ECM, certain codes point directly to an internal failure of the module itself. These are the most definitive codes for diagnosing a bad ECM:

• P0601: Internal Control Module Memory Check Sum Error
• P0604: Internal Control Module Random Access Memory (RAM) Error
• P0606: ECM/PCM Processor Fault
• P060C: Internal Control Module Main Processor Performance
🎬 See how to diagnose a P0606 ECM processor error code.

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

Several official communications from FCA (Chrysler/Dodge) relate to the engine control systems on the 2016-2020 Dodge Journey. It's important to check if these have been performed on your vehicle, as they can cause symptoms identical to a failing ECM.

Recall S89 / NHTSA 16V-907: Crankshaft Sensor Connector

This safety recall affects some 2016 Dodge Journey models equipped with the 2.4L engine and built between May 9, 2016, and July 15, 2016. The issue is an intermittent connection at the crankshaft or camshaft position sensor, which can cause the engine to stall while driving or fail to start. The remedy involves replacing the sensor's electrical connector. Since stalling and no-start are also primary symptoms of ECM failure, it is critical to ensure this recall is not the actual cause of the problem.

Recall U49 / NHTSA 18V-332: Cruise Control Software Update

This recall applies to a broad range of FCA vehicles, including the 2014-2018 Dodge Journey. An electronic fault in the PCM software could prevent the cruise control from being deactivated. The fix is a simple software update (flash) performed by a dealer. While not a failure of the ECM hardware, it highlights the importance of keeping the module's software up to date.

Recall V66 / NHTSA 18V-524: PCM Voltage Regulator

This recall affects certain 2018 Dodge Journey models. The Powertrain Control Module may have a voltage regulator chip that can fail, causing the vehicle to stall or not start. The remedy is to replace the PCM. This is a direct recall for a known hardware failure within the ECM itself.

Buying a Used Engine Control Module: What You MUST Know

This is the most critical section for anyone considering a replacement ECM. Unlike a simple mechanical part, you cannot just swap a used ECM into your Dodge Journey and expect it to work. Programming is mandatory.

1. Programming is Absolutely Required

A replacement ECM, whether it is new, used, or remanufactured, must be programmed to your specific vehicle. The ECM is linked to the vehicle's anti-theft system, known as the Sentry Key Immobilizer Module (SKIM) or Wireless Ignition Node (WIN). If you install an ECM from another vehicle, the anti-theft system will activate, and the engine will either not start or will start for two seconds and then immediately stall. The replacement ECM needs to be flashed with your vehicle's unique VIN and security information.

2. Who Can Program the ECM?

• Dodge/Chrysler Dealerships: A dealer can always program a new or, in most cases, a used ECM to your vehicle. This is the most straightforward but often most expensive option. Some dealers may be hesitant to program a part they did not supply.
• Specialized Independent Shops: Many independent shops that specialize in automotive electronics can program a replacement ECM. They use a tool called a J2534 Pass-Thru device and a software subscription from FCA to perform the same functions as a dealer.
• Mail-In Programming Services: Numerous online vendors offer a service where you buy a used or remanufactured ECM from them, provide your VIN, and they will program it before shipping it to you. This makes the module 'plug and play' upon arrival. Some services can also perform a "SKIM delete," which removes the immobilizer function from the ECM entirely.

3. Verifying Compatibility

You must match two key things for compatibility:

• Engine and Transmission: This ECM is ONLY for the 2.4L 4-Cylinder engine with the 4-speed automatic transmission. It is not interchangeable with the module from the 3.6L V6 model.
• Part Number: Match the OEM part number exactly. The correct part numbers for this application are 68259127AA and 68259127AB. The final letters (AA, AB) indicate revisions. The later revision (AB) is newer and supersedes the older one, but both should be compatible.

4. Physical Inspection of a Used ECM

When buying a used ECM, inspect it carefully. Look for signs of corrosion on the pins of the electrical connectors, which can indicate water damage. Check if the case has been pried open, which suggests a previous, likely failed, repair attempt. Avoid any module that shows signs of physical damage or water intrusion.

ECM Replacement Cost Comparison

The cost can vary significantly depending on the source of the part and labor rates. Programming is often an additional charge on top of the physical installation.

Frequently Asked Questions (FAQ)