DTC P20EE-96: SCR NOx Catalyst Efficiency Below Threshold Bank 1 - Component internal failure: Action
- Vehicle Conditions to Enable DTC Logging Strategy
- Drive vehicle at urban speeds until SCR catalyst warm and exhaust Nox sensors active. Make sure the vehicle is not in DPF active regeneration and drive at urban speeds for 20 min (50/60 mph)
- Prioritized Checks to Perform
- Follow the DEF Quality Pinpoint test in 309-00 Exhaust System, Diesel, Diagnosis and Testing
- Pathfinder - Guided Diagnostics, Warnings, Messages, Diesel Exhaust Fluid
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest