U2629 GMC Code - Reductant Control Module Lost Communication With Reductant Tank Temperature Sensor 1
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Reductant Tank Temperature Sensor 1, Reductant Tank Temperature Sensor 1 harness is open or shorted, Reductant Tank Temperature Sensor 1 circuit poor electrical connection. 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
- U2629 GMC indicates Reductant Control Module Lost Communication With Reductant Tank Temperature Sensor 1.
- Common causes
- Common causes include Faulty Reductant Tank Temperature Sensor 1, Reductant Tank Temperature Sensor 1 harness is open or shorted, Reductant Tank Temperature Sensor 1 circuit poor electrical connection.
- 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.
Code U2629 GMC Description
The Diagnostic Trouble Code (DTC) will set when a supervised periodic message that includes the transmitter device availability has not been received.
What are the Possible Causes of the DTC U2629 GMC?
- Faulty Reductant Tank Temperature Sensor 1
- Reductant Tank Temperature Sensor 1 harness is open or shorted
- Reductant Tank Temperature Sensor 1 circuit poor electrical connection
- Faulty Reductant Control Module
How to Fix the DTC U2629 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U2629 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about U2629 GMC Code
1. What does the OBDII code U2629 GMC indicate?
The code U2629 GMC indicates that the Reductant Control Module has lost communication with the Reductant Tank Temperature Sensor 1.
2. What are the common symptoms of U2629 GMC code?
Common symptoms may include the check engine light turning on, poor vehicle performance, and potential issues with the Selective Catalytic Reduction (SCR) system.
3. What are the possible causes of U2629 GMC code?
Possible causes include faulty wiring or connections between the Reductant Control Module and the Reductant Tank Temperature Sensor 1, a malfunctioning sensor, or a defective Reductant Control Module.
4. How can I diagnose the U2629 GMC code?
Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble code, checking the wiring and connections between the control module and sensor, and testing the sensor itself for proper functionality.
5. How can I repair U2629 GMC code?
Repair options may include repairing or replacing damaged wiring or connections, replacing the Reductant Tank Temperature Sensor 1, or replacing the Reductant Control Module if deemed faulty.
6. Can I drive my vehicle with the U2629 GMC code?
It is not recommended to drive the vehicle with an unresolved U2629 GMC code, as it can lead to potential emissions issues and affect overall performance.
7. How much does it cost to repair the U2629 GMC code?
The cost of repairing the U2629 GMC code can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any necessary parts.
8. Is the U2629 GMC code a serious issue?
While the U2629 GMC code may not cause immediate harm to the vehicle, it is important to address the underlying issue to ensure proper emissions control and overall vehicle performance.
9. Can I reset the U2629 GMC code on my own?
You can attempt to reset the code using a diagnostic scanner, but it is recommended to diagnose and repair the underlying issue to prevent the code from reappearing.
10. How often does the U2629 GMC code occur in vehicles?
The occurrence of the U2629 GMC code can vary depending on the vehicle's make and model, driving conditions, and maintenance history, but it is not an uncommon issue in vehicles equipped with SCR systems.
Discuss the causes and fixes for U2629 GMC OBDII Code
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