U2631
Reductant Control Module Lost Communication With Reductant Pressure Sensor
U2631 is an OBD-II diagnostic trouble code meaning: Reductant Control Module Lost Communication With Reductant Pressure Sensor. Common causes: open or short circuit in the pressure sensor circuit, reagent pressure sensor malfunction. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Possible transition to emergency mode
- Increased emissions of harmful substances
- SCR system error message on dashboard
Causes
- Open or short circuit in the pressure sensor circuit
- Reagent pressure sensor malfunction
- Problems with the reducer control module
- Poor contact in connectors
- Wiring harness damage
How to Fix
- Check the continuity of the pressure sensor circuit
- Check connections and connectors for corrosion
- Test the reagent pressure sensor
- Check the functionality of the control module
- Replace damaged components if necessary
Related codes
FAQ
What does the U2631 code mean?
U2631 is an OBD-II diagnostic trouble code that indicates: Reductant Control Module Lost Communication With Reductant Pressure Sensor
What causes a U2631 error code?
The most common causes of U2631 include: Open or short circuit in the pressure sensor circuit; Reagent pressure sensor malfunction; Problems with the reducer control module; Poor contact in connectors.
How do I fix a U2631 diagnostic trouble code?
To fix U2631: Check the continuity of the pressure sensor circuit. Check connections and connectors for corrosion. Test the reagent pressure sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U2631?
Yes, but get it checked soon
How much does it cost to fix U2631?
The estimated repair cost for U2631 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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