Possible Causes
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
- Purpose of the DTC
- To monitor the selective catalytic reduction system for minimum catalyst Nox conversion efficiency by passive monitoring not met after function reset
- Electrical Cause
- No
- Mechanical Cause
- Yes
- Control Module Cavity
- Not applicable
- Monitor Description
- Selective catalytic reduction - the minimum conversion efficiency of the catalytic device is not met after function reset
- The diesel exhaust fluid quality is not meeting manufacturer specifications or the SCR catalyst is removed
- Prioritised List of Possible Causes
- Diesel exhaust fluid quality is reduced
- Defective SCR catalyst (missing)
- Deficient DEF reagent delivery
- Diesel exhaust fluid injector blockage/failure