2015 Grand Cherokee & Durango Engine Control Module: Decoding Failures, Recalls, and Replacement
This guide covers the common failure symptoms, critical programming requirements, and replacement costs for the ECM in the 2015 Jeep Grand Cherokee and Dodge Durango.
- The ECM absolutely must be programmed with your vehicle's VIN to function; an unprogrammed module will result in a no-start condition due to the anti-theft system.
- Many recalls and TSBs for these vehicles involve a simple software update to the ECM, which may fix your problem for free at a dealership.
- Buying a used or remanufactured OEM module online is the most cost-effective option, provided the seller pre-programs it to your VIN before shipping.
- Common failure symptoms include stalling, no-start, poor performance, and a check engine light with misfire or communication codes.
Symptoms of a Failing ECM
A failing Engine Control Module in a 2015 Jeep Grand Cherokee or Dodge Durango can cause a wide range of confusing and intermittent problems. Because the ECM controls so many functions, symptoms can often be mistaken for other issues. The most common sign is an illuminated Check Engine Light, but here are more specific behaviors to watch for.
- Engine Performance Issues: You may experience random engine stalling, misfires, rough idling, a loss of power, or poor acceleration. These problems might happen intermittently, making them difficult to diagnose.
- No-Start or Intermittent Starting: The vehicle may crank but refuse to start. In other cases, it might start sporadically, failing one moment and starting fine the next. 🎬 Watch: Diagnosing an intermittent no-start on a 2015 Grand Cherokee. This can be caused by the ECM not sending the proper signals for spark or fuel injection.
- Poor Fuel Economy: If the ECM is not managing the air-fuel mixture correctly, you may notice a sudden and significant drop in your vehicle's gas mileage.
- Automatic Transmission Problems: The ECM works directly with the transmission controller. A faulty ECM can lead to erratic shifting, delayed gear engagement, or the transmission getting stuck in one gear (limp mode).
- Associated OBD-II Trouble Codes: A scanner may reveal codes pointing directly to the module or the systems it controls. Common codes include cylinder misfires (P0300-P0306), EVAP system leaks (P0456), or an invalid immobilizer key (P0513).
Known Issues, Recalls, and Technical Service Bulletins (TSBs)
Several factory communications are relevant to the ECM in these vehicles. Many issues are resolved with a simple software update at a dealership rather than a full module replacement.
Important: Before replacing your ECM, have a dealership check if your vehicle has any open recalls. Many of these software updates are performed free of charge and may resolve your issue.
- NHTSA Recall 18V-332 (FCA Campaign U65): This major safety recall addresses a software issue where the cruise control may not disengage. If the driver tries to cancel cruise control, the vehicle might maintain speed or even accelerate. The fix is a free software flash for the Powertrain Control Module.
- NHTSA Recall 16V240000 (FCA Campaign S27): Affecting the 2014-2015 Grand Cherokee, this recall concerns the electronic gear selector. Drivers could exit the vehicle thinking it's in Park when it is not, leading to a rollaway risk. The remedy is a software update to the control modules.
- NHTSA Recall 15V-509: This recall was issued for a software vulnerability in the vehicle's radio system that could potentially allow unauthorized remote access to some vehicle control systems. The fix involves a software update.
- TSB 18-055-16: For the 3.6L V6 engine, this bulletin was released to address a Check Engine Light caused by various misfire codes (P0300-P0306) or a small EVAP leak code (P0456). The solution is to reprogram the ECM with updated software.
- TSB 21-027-15 REV. C: This bulletin provides a software update for the Transmission Control Module (TCM) to improve shift quality, correct erroneous trouble codes like P0734 (Gear 4 Incorrect Ratio), and fix harsh downshifts.
Buying a Used Engine Control Module
For a 2015 Grand Cherokee or Durango, buying a used OEM ECM is often a smart and cost-effective choice compared to expensive new units or potentially unreliable aftermarket clones. However, you cannot simply swap one from another vehicle. Programming is mandatory.
The #1 Rule: VIN Programming is Required
Warning: An ECM from another vehicle will not work unless it is programmed with your vehicle's specific 17-digit Vehicle Identification Number (VIN). The ECM is linked to the anti-theft system (Sentry Key Immobilizer Module or SKIM). A mismatched VIN will prevent the engine from starting.
When shopping for a used ECM, look for sellers who offer VIN programming service. Many reputable online retailers will ask for your VIN at checkout and flash the module before shipping it to you. This makes the replacement a "plug-and-play" process, allowing you to avoid a trip to the dealership.
What to Look For:
- Part Number Matching: While many part numbers exist, they often trace back to a single hardware number, such as 05150987AB. When possible, match the part number on your original module to the replacement. If you're unsure, provide your VIN to the seller to confirm compatibility.
- VIN Programming Service: Only buy from sellers who explicitly offer to program the module to your VIN before shipping.
- Physical Inspection: When the part arrives, inspect it for any signs of damage. Check for corrosion on the pins, cracks in the casing, or broken connector tabs. Avoid any units that look like they have been opened or tampered with.
- Warranty: Reputable sellers of used electronics will offer a warranty. This protects you in case the module is defective.
Replacement Cost Breakdown
The cost to replace the ECM can vary significantly depending on the path you choose. Getting a pre-programmed used module and installing it yourself is by far the most affordable option.
| Part/Service | Estimated Cost | Notes |
|---|---|---|
| New OEM (Dealer) | $750 - $1,100 + Core | This is for the part only. Does not include dealership labor for installation and programming. |
| Used OEM (Pre-Programmed) | $200 - $400 | Sourced from online retailers or eBay. Shipped ready to install. |
| Remanufactured | $250 - $500 | Often sold by the same vendors as used units, typically includes programming and a warranty. |
| Shop Labor (Installation & Programming) | $100 - $250 | Labor for physical replacement is low (around 1 hour), but programming adds cost if not done beforehand. |
Frequently Asked Questions (FAQ)
Does the ECM need to be programmed to my vehicle?
Yes, absolutely. The ECM for the 2015 Grand Cherokee and Durango must be programmed with your vehicle's VIN to communicate with the immobilizer system. If you install an unprogrammed module, the vehicle will not start.
Can a locksmith or independent shop program a used ECM?
Yes, some locksmiths and independent mechanics with advanced diagnostic tools 🎬 See how a used ECM is programmed using an Autel. (like a high-level Autel scanner) can program a used ECM. They can read the PIN from the immobilizer and write your car's VIN to the replacement module. However, it is often easier and cheaper to buy a module that has been pre-programmed by the seller via mail.
Where is the ECM located on the 2015 Grand Cherokee and Durango?
The ECM is typically located in the engine bay. On many models, it is found bolted near the ABS module, sometimes under the air cleaner assembly. It is a silver metal box with several large electrical connectors.
🎬 Watch: See the exact PCM location and a quick overview.Can I install the ECM myself?
If you purchase a pre-programmed ECM, the physical installation is straightforward for a DIY mechanic. It involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. If the module is not pre-programmed, you will need professional help to get the vehicle running.
Will a bad ECM always cause a Check Engine Light?
Not always. While a Check Engine Light is the most common indicator, a failing ECM can sometimes cause intermittent issues like stalling or no-start conditions without storing a fault code, which makes diagnosis more challenging.
Helpful Videos
Technical Specifications
OEM Part Numbers: 5150987AB 68229976AE 68230010AD 68230013AF P68229960 68230018AC 68230019AC 05150927AB 68229960AD 68241510AA
The primary hardware family for many of these modules is 05150987AB. Specific part numbers vary based on engine (3.0L Diesel, 3.6L V6, 5.7L V8, 6.4L V8) and emissions calibration. All versions require VIN programming and are linked to the Sentry Key Immobilizer Module (SKIM).
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Jeep Grand Cherokee:
- Dodge Durango: