U2139 Saturn Code - Lost Communication With Column Integration Module
Quick Answer
The U2139 diagnostic trouble code for Saturn vehicles indicates that there is a communication issue between the vehicle's engine control module (ECM) and the column integration module (CIM). Common causes include Faulty wiring or connections between ECM and CIM, Failed CIM module, Corrosion in electrical connectors. 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
- U2139 Saturn indicates Lost Communication With Column Integration Module.
- Common causes
- Common causes include Faulty wiring or connections between ECM and CIM, Failed CIM module, Corrosion in electrical connectors.
- 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 U2139 Saturn Description
The U2139 diagnostic trouble code for Saturn vehicles indicates that there is a communication issue between the vehicle's engine control module (ECM) and the column integration module (CIM). The CIM is responsible for controlling various functions related to the steering column, such as the turn signals, wipers, and cruise control. When communication is lost between the ECM and CIM, it can lead to a range of issues that affect the vehicle's overall performance and functionality.
Common Causes of U2139 Saturn
- Faulty wiring or connections between ECM and CIM
- Failed CIM module
- Corrosion in electrical connectors
- Software issues in ECM or CIM
- Electrical interference from aftermarket accessories
Symptoms of U2139 Saturn
- Erratic behavior in steering column functions
- Malfunctioning turn signals
- Inoperative wipers
- Cruise control not working
- Dashboard warning lights illuminated
How to Fix U2139 Saturn
- Diagnose the root cause of the communication issue using a diagnostic scanner.
- Inspect wiring and connections between ECM and CIM for any signs of damage or corrosion.
- Test the CIM module for proper functionality and replace if necessary.
- Clear the trouble code from the vehicle's memory and perform a system reset.
- Test drive the vehicle to ensure the issue has been resolved and all systems are functioning correctly.
Cost to Fix U2139 Saturn
The typical repair costs for addressing a U2139 code can range from $200 to $500, including both parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It's advisable to obtain quotes from local auto repair shops to get a more accurate estimate for this repair.
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Frequently Asked Questions about U2139 Saturn Code
1. What are the common symptoms of OBDII code U2139 in a Saturn related to lost communication with the Column Integration Module?
- Common symptoms include issues with power steering functionality, cruise control not working, and warning lights on the dashboard.
2. What are some possible causes for the U2139 OBDII code indicating lost communication with the Column Integration Module in a Saturn?
- Potential causes include wiring harness issues, a faulty Column Integration Module, a defective steering angle sensor, or a malfunctioning communication network.
3. How can I diagnose the U2139 code in my Saturn to determine the root cause of the communication loss with the Column Integration Module?
- Diagnosing the code involves checking the wiring connections, inspecting the Column Integration Module for any damage, testing the steering angle sensor, and using a diagnostic scan tool to identify communication errors.
4. Is it safe to continue driving my Saturn with the U2139 code indicating lost communication with the Column Integration Module?
- It is not recommended to drive the vehicle with this code present, as it may affect essential systems like power steering and compromise overall safety.
5. Can I reset the U2139 code in my Saturn by disconnecting the battery, or do I need a professional diagnostic tool?
- While disconnecting the battery may temporarily clear the code, using a professional diagnostic tool is essential to properly diagnose and repair the underlying issue.
6. What are some repair tips for addressing the U2139 code related to lost communication with the Column Integration Module in a Saturn?
- Repair tips include checking and repairing any damaged wiring, replacing the Column Integration Module if necessary, recalibrating the steering angle sensor, and ensuring proper communication network functionality.
7. How much might it cost to repair the U2139 code indicating lost communication with the Column Integration Module in a Saturn?
- Repair costs can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services.
8. Are there any recalls or technical service bulletins related to the U2139 code in Saturn vehicles?
- It is recommended to check with Saturn or a qualified dealership for any relevant recalls or technical service bulletins related to the U2139 code and communication issues with the Column Integration Module.
9. Can extreme weather conditions or rough driving contribute to triggering the U2139 code in a Saturn?
- While extreme weather or harsh driving conditions may not directly cause the code, they can potentially exacerbate existing issues with the communication system and lead to the U2139 code being triggered.
10. Should I attempt to repair the U2139 code in my Saturn myself, or is it best left to a professional mechanic?
- Due to the complexity of diagnosing and repairing communication issues like the U2139 code, it is generally recommended to seek the expertise of a professional mechanic to ensure accurate diagnosis and proper repair.
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