U0104 Nissan Code - Lost Communication With Advanced Driver Assistance Systems Control Module
Quick Answer
The U0104 diagnostic trouble code (DTC) for Nissan vehicles indicates that there is a communication problem between the vehicle's engine control module (ECM) and the Advanced Driver Assistance Systems (ADAS) control module. Common causes include Faulty wiring or connectors between the ECM and ADAS control module, Malfunctioning ADAS control module, ECM software issue. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- U0104 Nissan indicates Lost Communication With Advanced Driver Assistance Systems Control Module.
- Common causes
- Common causes include Faulty wiring or connectors between the ECM and ADAS control module, Malfunctioning ADAS control module, ECM software issue.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code U0104 Nissan Description
The U0104 diagnostic trouble code (DTC) for Nissan vehicles indicates that there is a communication problem between the vehicle's engine control module (ECM) and the Advanced Driver Assistance Systems (ADAS) control module. The ADAS control module is responsible for managing various safety features in the vehicle, such as adaptive cruise control, lane departure warning, automatic emergency braking, and more. When communication is lost with this module, it can lead to a range of issues affecting the vehicle's safety and performance.
Common Causes of U0104 Nissan
- Faulty wiring or connectors between the ECM and ADAS control module
- Malfunctioning ADAS control module
- ECM software issue
- Water damage or corrosion in the wiring harness
- Electrical interference from aftermarket accessories
Symptoms of U0104 Nissan
- Dashboard warning lights (e.g., traction control, ABS, airbag) illuminated
- Loss of ADAS features (e.g., adaptive cruise control, lane departure warning)
- Vehicle going into "limp mode" with limited performance
- Erratic behavior of safety systems (e.g., automatic emergency braking not engaging)
How to Fix U0104 Nissan
- Perform a thorough diagnostic scan to retrieve the U0104 code and identify the specific cause of the communication loss.
- Inspect the wiring harness and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
- Test the ADAS control module and ECM for proper functionality. Replace any faulty components.
- Clear the DTC and perform a relearn procedure to reset the communication between the modules.
- Test drive the vehicle to ensure that the ADAS features are functioning correctly and that the U0104 code does not reappear.
Cost to Fix U0104 Nissan
The cost of repairing the U0104 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair costs for this type of communication problem can range from $200 to $500, including parts and labor. However, it is essential to consider that rates can vary significantly based on location, vehicle make and model, and the expertise of the technician. It is advisable to consult with a trusted mechanic or dealership to get a more accurate estimate for your specific situation.
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Frequently Asked Questions about U0104 Nissan Code
1. What does the OBDII code U0104 for a Nissan mean?
The code U0104 indicates a communication problem between the vehicle's ECM (Engine Control Module) and the Advanced Driver Assistance Systems Control Module.
2. What are common symptoms of the U0104 code in a Nissan?
Common symptoms of the U0104 code may include loss of communication with advanced driver assistance systems, such as lane departure warning, adaptive cruise control, or automatic emergency braking.
3. What are possible causes of the U0104 code in a Nissan?
Possible causes of the U0104 code in a Nissan include faulty wiring or connectors, a defective Advanced Driver Assistance Systems Control Module, or issues with the ECM.
4. How can I diagnose the U0104 code in my Nissan?
Diagnosing the U0104 code involves using a scan tool to check for other related trouble codes, inspecting the wiring and connectors for any damage, and verifying the functionality of the Advanced Driver Assistance Systems Control Module.
5. Can I still drive my Nissan with the U0104 code?
It is not recommended to drive your Nissan if you have the U0104 code stored, as it may affect the proper functioning of important safety features provided by the advanced driver assistance systems.
6. How can I repair the U0104 code in my Nissan?
Repairing the U0104 code in a Nissan involves addressing the root cause of the communication issue, which may require repairing or replacing faulty wiring, connectors, or modules.
7. Can I reset the U0104 code in my Nissan without fixing the issue?
Resetting the U0104 code without fixing the underlying communication problem will likely cause the code to reappear once the vehicle's systems perform a self-check.
8. Is the U0104 code a serious issue in a Nissan?
Yes, the U0104 code is a serious issue in a Nissan as it can affect the functionality of advanced driver assistance systems that are designed to enhance the safety of the vehicle.
9. How much does it cost to repair the U0104 code in a Nissan?
The cost of repairing the U0104 code in a Nissan can vary depending on the cause of the communication problem and the specific components that need to be repaired or replaced.
10. Can I prevent the U0104 code from occurring in my Nissan?
To help prevent the U0104 code from occurring in your Nissan, it's important to regularly inspect and maintain the wiring and connectors related to the advanced driver assistance systems and address any issues promptly.
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