U2137 Saturn Code - Lost Communications With Vehicle Theft Deterrent Module
Quick Answer
The U2137 diagnostic trouble code (DTC) for Saturn vehicles indicates that there has been a communication failure with the Vehicle Theft Deterrent (VTD) module. Common causes include Faulty VTD module, Wiring issues or loose connections, Damaged key fob. 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
- U2137 Saturn indicates Lost Communications With Vehicle Theft Deterrent Module.
- Common causes
- Common causes include Faulty VTD module, Wiring issues or loose connections, Damaged key fob.
- 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 U2137 Saturn Description
The U2137 diagnostic trouble code (DTC) for Saturn vehicles indicates that there has been a communication failure with the Vehicle Theft Deterrent (VTD) module. The VTD module is a crucial component of the vehicle's security system, responsible for preventing unauthorized access and theft. When communication is lost with this module, it can lead to issues with starting the vehicle, as the system may not recognize the key or allow the engine to turn over.
Common Causes of U2137 Saturn
- Faulty VTD module
- Wiring issues or loose connections
- Damaged key fob
- Corrosion or damage to the wiring harness
- Malfunctioning ECU
Symptoms of U2137 Saturn
- Engine cranks but does not start
- Security light flashing on the dashboard
- Inability to start the vehicle
- Horn honking or lights flashing intermittently
- Error message on the instrument cluster related to the security system
How to Fix U2137 Saturn
- Perform a diagnostic scan to confirm the U2137 code and identify the specific cause of the communication failure.
- Inspect the wiring harness for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
- Test the key fob to ensure it is functioning properly. Replace if necessary.
- Check the VTD module for faults and replace if deemed faulty.
- If the issue persists, consult a professional technician to diagnose any potential ECU problems.
Cost to Fix U2137 Saturn
The cost of repairing a U2137 code can vary depending on the specific cause of the issue. In general, replacing a faulty VTD module can range from $200 to $500, while addressing wiring issues or replacing a key fob may cost between $100 and $300. Labor costs can add an additional $80 to $150 per hour, with total repair costs potentially exceeding $500 in some cases. It's recommended to obtain a detailed quote from a reputable auto repair shop to determine the exact cost for your vehicle.
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Frequently Asked Questions about U2137 Saturn Code
1. What does the OBDII code U2137 for Saturn mean?
The code U2137 indicates a communication error between the vehicle's engine control module (ECM) and the vehicle theft deterrent module (VTD).
2. What are the common symptoms of the U2137 code on a Saturn?
Common symptoms include the security light illuminating on the dashboard, difficulty starting the vehicle, and issues with the anti-theft system functioning properly.
3. What are some possible causes of the U2137 code on a Saturn?
Possible causes include a faulty VTD module, wiring issues between the ECM and VTD, a malfunctioning ignition key, or a problem with the ECM itself.
4. How can I diagnose the U2137 code on my Saturn?
Diagnosing the U2137 code may involve checking the wiring connections between the ECM and VTD, testing the VTD module for proper functionality, and ensuring the ignition key is programmed correctly.
5. Can I still drive my Saturn with the U2137 code present?
It is not recommended to drive the vehicle with the U2137 code present, as it may lead to potential security issues and further damage to the vehicle's systems.
6. How can I repair the U2137 code on my Saturn?
Repairing the U2137 code may involve replacing the VTD module, repairing any damaged wiring, reprogramming the ignition key, or resetting the ECM to establish communication with the VTD.
7. Is the U2137 code a serious issue on a Saturn?
The U2137 code should be addressed promptly, as it can affect the proper functioning of the vehicle's anti-theft system and potentially lead to starting or security issues.
8. Can I reset the U2137 code on my Saturn without professional help?
Resetting the U2137 code may require advanced diagnostic tools and knowledge, so it is recommended to seek professional help to properly diagnose and repair the issue.
9. How much does it cost to fix the U2137 code on a Saturn?
The cost of fixing the U2137 code can vary depending on the underlying cause, such as replacing the VTD module, repairing wiring, or reprogramming components. It is advisable to consult a mechanic for an accurate estimate.
10. Can a DIY enthusiast fix the U2137 code on a Saturn?
While some DIY enthusiasts may have the skills to diagnose and repair simple wiring issues related to the U2137 code, more complex repairs involving module replacement or reprogramming may require professional expertise to ensure proper resolution.
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