2006 Nissan Murano ECM: Solving No-Start Issues and Programming Secrets

Symptoms of a Failing 2006 Murano ECM

A failing ECM can cause a wide range of confusing symptoms. Because it controls so many systems, diagnosis can be tricky, but here are the most common signs that point to the ECM.

• Crank, No Start: The engine will turn over but will not fire up. This is one of the most frequent symptoms of a bad ECM or a failed anti-theft system link.
🎬 Watch: Diagnosing a crank, no start issue on a Murano
• Engine Stalling: The engine may shut off unexpectedly while driving or when coming to a stop.
• No Communication with Scan Tool: When a diagnostic scanner is plugged into the OBD-II port, it cannot establish a connection with the ECM. This often points directly to a faulty module or a power supply issue to the module.
• Check Engine Light: A persistent Check Engine Light is a common sign. Specific trouble codes related to internal module failure, like P0603, P0604, or P0605, are strong indicators of a bad ECM.
• Poor Engine Performance: This can include rough idling, engine misfires, a sudden drop in fuel economy, or hesitation during acceleration.
• No Spark or No Injector Pulse: The ECM is responsible for firing the ignition coils and fuel injectors. A lack of signal to these components can prevent the engine from running.

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

While there are no specific recalls for the ECM on the 2006 Murano, several related issues are important to know.

• NHTSA Recall 09V169000: This recall addresses intake air ducts that can separate from the resonator, potentially causing the engine to stall. A stalling engine can sometimes be misdiagnosed as an ECM problem.
• TSB for No-Start: Nissan has issued technical service bulletins for conditions where the vehicle's key is not detected or authenticated, resulting in a no-start situation. This is directly related to the ECM and the anti-theft system.
• Ignition Coil Failure: Bad ignition coils can overload and damage the driver circuits inside the ECM. If you are replacing an ECM, it's wise to inspect or replace the ignition coils and spark plugs at the same time to prevent a repeat failure.

Buying a Used 2006 Murano Engine Control Module

Purchasing a used ECM can save you hundreds of dollars, but it requires careful attention to detail. This is not a simple plug-and-play part. Here is what you must know to get the right one.

1. Match the Part Number EXACTLY

This is the most critical step. The part number printed on the sticker of your original ECM must match the used part you are buying. While some part numbers supersede others, starting with an exact match is the safest approach. The last letter of the part number often indicates a minor revision. For example, part number 23710-CC22C replaces the earlier 23710-CC22A and 23710-CC22B versions.

2. Verify Vehicle Options: AWD without VDC

The ECMs for the 2006 Murano are specific to the vehicle's drivetrain and options. The part numbers listed in this guide are for models with All-Wheel Drive (AWD) and WITHOUT Vehicle Dynamic Control (VDC). An ECM from a Front-Wheel Drive (FWD) or VDC-equipped model will not work correctly.

3. Plan for Programming

After the used ECM is installed, the vehicle must be connected to a specialized diagnostic tool to sync the ECM with your existing keys and the Body Control Module (BCM). This procedure can be performed by:

• A Nissan dealership
• A qualified automotive locksmith with advanced diagnostic tools (e.g., Autel, Snap-on with immobilizer functions)
🎬 Watch: How to program keys after replacing the ECM

Some online vendors offer a service where they pre-program a remanufactured ECM with your vehicle's VIN before shipping it. This can potentially make the unit 'plug-and-play,' but you should confirm this service with the seller. For a standard used part, always assume on-vehicle programming will be required.

4. Physical Inspection

When you receive the used ECM, inspect it carefully. Look for any signs of corrosion on the pins, which indicates water damage. Check if the case has been opened or tampered with. A clean, factory-sealed unit from a dry climate is always the best choice.

Cost Comparison for a 2006 Murano ECM

The cost can vary dramatically depending on the source of the part.

ECM Location and Replacement Steps

The ECM is located behind the glove box on the passenger side of the dashboard. While the physical replacement is straightforward for a DIY mechanic, the final programming step is not.

1. Disconnect the Battery: Always disconnect the negative battery terminal before working on any electronic components.
2. Remove the Glove Box: Open the glove box and remove the retaining pins or screws that hold it in place. The entire glove box assembly will need to come out.
3. Access the ECM: Once the glove box is removed, you will see the ECM mounted vertically in a metal bracket.
4. Disconnect Wiring: Carefully disconnect the large electrical connectors from the ECM. There are typically levers or tabs that need to be pressed to release them.
5. Remove the ECM: Unbolt the ECM (usually 10mm nuts or bolts) from its mounting bracket and remove it from the vehicle.
🎬 See this step-by-step glove box and ECM removal video
6. Install the New ECM: Installation is the reverse of removal. Secure the new module, reconnect the wiring harnesses, and reinstall the glove box.
7. Program the Module: Reconnect the battery. The vehicle will not start at this point. It must be towed or visited by a mobile locksmith/technician for immobilizer programming.

Frequently Asked Questions (FAQ)