U2139 Pontiac Code - Lost Communication With Column Integration Module
Quick Answer
The U2139 diagnostic trouble code for Pontiac vehicles indicates that there is a communication error between the vehicle's engine control module (ECM) and the column integration module (CIM). Common causes include Faulty wiring or connectors, Defective CIM or ECM, Corrosion or damage to communication lines. 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 Pontiac indicates Lost Communication With Column Integration Module.
- Common causes
- Common causes include Faulty wiring or connectors, Defective CIM or ECM, Corrosion or damage to communication lines.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code U2139 Pontiac Description
The U2139 diagnostic trouble code for Pontiac vehicles indicates that there is a communication error 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, windshield wipers, and cruise control. When communication is lost between the ECM and CIM, it can lead to a range of issues affecting the vehicle's performance and functionality.
Common Causes of U2139 Pontiac
- Faulty wiring or connectors
- Defective CIM or ECM
- Corrosion or damage to communication lines
- Software glitches or programming errors
- Electrical interference or signal disruption
Symptoms of U2139 Pontiac
- Malfunctioning turn signals
- Inoperative windshield wipers
- Cruise control issues
- Limp mode activation
- Dashboard warning light illuminated
How to Fix U2139 Pontiac
- Perform a thorough inspection of the wiring harness and connectors for any signs of damage or corrosion.
- Check the CIM and ECM for proper functionality and communication.
- Clear the trouble codes and reset the system to see if the issue persists.
- Test the communication lines and repair any faults found.
- Replace the CIM or ECM if necessary and reprogram as needed.
Cost to Fix U2139 Pontiac
The typical repair costs for addressing the U2139 code in a Pontiac vehicle can range from $200 to $500, including parts and labor. However, the 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. It's recommended to inquire about local rates to obtain a more accurate estimate for this repair. Keep in mind that rates may vary between different types of repair facilities, with dealerships and metropolitan areas typically charging higher rates than independent shops.
Need more information about the U2139 Pontiac code?
Need more information on how to fix the U2139 Pontiac code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U2139 Pontiac code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U2139 Pontiac Code
1. What are the common symptoms of OBDII code U2139 "Lost Communication With Column Integration Module" in a Pontiac?
- Common symptoms include issues with power steering, malfunctioning turn signals, erratic wipers, and difficulty starting the vehicle.
2. What are the possible causes of the U2139 trouble code in a Pontiac?
- The code can be triggered by a faulty column integration module, damaged wiring or connectors, a weak battery, or a malfunctioning power steering control module.
3. How can I diagnose the U2139 code in my Pontiac?
- Diagnosing the U2139 code typically involves using a professional OBDII scanner to read the code, checking for any related codes, inspecting the wiring and connectors, and testing the column integration module.
4. Can a DIY enthusiast repair the U2139 code in a Pontiac?
- While some simple fixes like checking and tightening the connectors or resetting the system may help, complex repairs involving module replacement or wiring repairs are best left to experienced mechanics.
5. Is it safe to continue driving with the U2139 trouble code in a Pontiac?
- It is not recommended to drive the vehicle with the U2139 code as it can lead to safety hazards due to malfunctioning steering, signaling, or other critical systems.
6. How much does it cost to repair the U2139 code in a Pontiac?
- The cost of repairing the U2139 code in a Pontiac can vary depending on the exact cause of the issue, but it may range from a few hundred dollars for simple fixes to over a thousand dollars for complex repairs involving module replacement.
7. Can a low battery trigger the U2139 trouble code in a Pontiac?
- Yes, a weak or failing battery can sometimes lead to communication errors between modules, including triggering the U2139 code in a Pontiac.
8. Will disconnecting the battery reset the U2139 code in a Pontiac?
- Disconnecting the battery may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear after driving the vehicle for some time.
9. How long does it take to repair the U2139 code in a Pontiac?
- The repair time for the U2139 code can vary depending on the exact cause and the complexity of the repair, but it may take a few hours to a full day for a mechanic to diagnose and fix the issue.
10. Can a Pontiac owner prevent the U2139 trouble code from appearing?
- Regular maintenance, such as checking the battery health, keeping the wiring connections secure, and addressing any warning signs promptly, can help prevent the U2139 code from appearing in a Pontiac.
Discuss the causes and fixes for U2139 Pontiac OBDII Code
Code U2139 Pontiac comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.