JCB P3425: SCR Fully Blocked (Plugged)

The system has detected that the SCR (Selective Catalytic Reduction) is fully blocked or plugged, which can lead to reduced engine performance and potential damage to the emission control system.

1. 1

   SCR system for blockage or plugging

2. 2

   exhaust gas flow through the SCR

3. 3

   any visible signs of debris or contamination

1. 1

   Inspect

   Visually inspect the SCR for signs of blockage, such as soot buildup, debris, or physical obstruction.

2. 2

   Clean

   If accessible, clean the SCR to remove any blockage or plugging. Use appropriate tools and follow the manufacturer's guidelines.

3. 3

   Test

   After cleaning, test the system to ensure proper exhaust gas flow and that the fault code is resolved.