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
- Selective catalytic reduction - diesel exhaust fluid delivery efficiency by active monitoring
- Electrical Cause
- No
- Mechanical Cause
- Yes
- Control Module Cavity
- Not applicable
- Monitor Description
- Selective catalytic reduction - Nox conversion efficiency is below threshold; the diesel exhaust fluid dosing module delivery is greatly reduced
- Prioritized List of Possible Causes
- Defective DEF reagent delivery
- Defective SCR catalyst (aged)
- Deficient DEF reagent delivery
- Diesel exhaust fluid injector partial delivery
- Damaged exhaust metal work
- SCR catalyst damage