JCB P3409-87: Excessive Ambient/Operating Level Error for Aftertreatment 1 SCR Catalyst DEF Property

The system has detected an excessive ambient or operating level error related to the aftertreatment 1 selective catalytic reduction (SCR) catalyst DEF property. This indicates a potential issue with the DEF (Diesel Exhaust Fluid) system or its interaction with the SCR catalyst.

1. 1

   The DEF property as it relates to the aftertreatment 1 SCR catalyst

2. 2

   The ambient or operating level readings associated with the aftertreatment 1 SCR catalyst

3. 3

   The system's detection of excessive levels in the DEF property