U2627 GMC Code - Reductant Control Module Lost Communication With Reductant Level Sensor
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Reductant Level Sensor, Reductant Level Sensor harness is open or shorted, Reductant Level Sensor 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
- U2627 GMC indicates Reductant Control Module Lost Communication With Reductant Level Sensor.
- Common causes
- Common causes include Faulty Reductant Level Sensor, Reductant Level Sensor harness is open or shorted, Reductant Level Sensor 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 U2627 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 U2627 GMC?
- Faulty Reductant Level Sensor
- Reductant Level Sensor harness is open or shorted
- Reductant Level Sensor circuit poor electrical connection
- Faulty Reductant Control Module
How to Fix the DTC U2627 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 U2627 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.
Need more information about the U2627 GMC code?
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Frequently Asked Questions about U2627 GMC Code
1. What are the common symptoms of OBDII code U2627 in a GMC vehicle?
The common symptoms include the check engine light illuminating, poor vehicle performance, and potential issues with the reductant system.
2. What can cause the U2627 code to appear in a GMC vehicle?
The U2627 code typically appears when there is a communication error between the reductant control module and the reductant level sensor. This can be caused by wiring issues, a faulty sensor, or a malfunctioning control module.
3. How can I diagnose the U2627 code in my GMC vehicle?
Diagnosing the U2627 code involves using a diagnostic scanner to retrieve the specific error codes, checking the wiring and connections between the control module and sensor, and testing the sensor for proper functionality.
4. Can I continue driving my GMC vehicle with the U2627 code present?
It is not recommended to drive your vehicle with the U2627 code present, as it can lead to potential issues with the reductant system and affect the vehicle's performance.
5. How can I repair the U2627 code in my GMC vehicle?
Repairing the U2627 code may involve repairing or replacing damaged wiring, replacing the reductant level sensor, or reprogramming the reductant control module. It is recommended to consult a professional mechanic for accurate diagnosis and repair.
6. Are there any DIY tips for fixing the U2627 code in a GMC vehicle?
While some basic checks like inspecting the wiring and connections can be done DIY, it is advisable to seek professional help for diagnosing and repairing the U2627 code to ensure proper resolution.
7. How much does it cost to repair the U2627 code in a GMC vehicle?
The cost of repairing the U2627 code can vary depending on the specific issue causing the code, the labor rates in your area, and the cost of parts needed for the repair. It is best to get a few quotes from different mechanics to compare prices.
8. Can resetting the trouble codes clear the U2627 code in a GMC vehicle?
Resetting the trouble codes may temporarily clear the U2627 code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause of the code for a lasting solution.
9. Is the U2627 code a serious issue in a GMC vehicle?
While the U2627 code may not cause immediate harm to your vehicle, it is important to address it promptly to prevent potential issues with the reductant system and ensure optimal performance.
10. How can I prevent the U2627 code from reoccurring in my GMC vehicle?
Regular maintenance, such as checking the reductant system components for any signs of wear or damage, ensuring proper wiring connections, and addressing any related issues promptly, can help prevent the U2627 code from reoccurring.
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