DTC P20E9-85: Reductant Pressure Too High - Signal above allowable range: Action
WARNING: This page is about a different car, the 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
A fault clear is NOT sufficient to clear the vehicle 'inducement' system warnings. The 'inducement' warnings automatically clear ONLY upon confirmation of the repair by the vehicle OBD system. The monitoring MUST be completed. The pressure build-up normally occurs when the selective catalyst reduction catalytic converter temperature exceeds 150°C
- Prioritized Checks to Perform
- Check diesel exhaust fluid line for blockage
- Check diesel exhaust fluid injector for blockage
- Check diesel exhaust fluid tank module for blockage
- Check diesel exhaust fluid line is not frozen
- Check diesel exhaust fluid injector is not frozen
- Check diesel exhaust fluid tank module is not frozen
- Vehicle Conditions to Enable DTC Logging Strategy
- DEF system pressurized
- On completion of the previous repair actions the following MUST be completed
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest
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NOTE: The engine MIL is OFF (when engine ON)
- Drive vehicle at urban speeds approximately 50mph
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NOTE: These conditions make sure that the selective catalyst reduction catalytic converter temperature exceeds 150 °C at which the system pressure build up is initiated
- The monitoring is completed within 15 minutes of the driving cycle
- The 'inducement' warning clears automatically when the monitoring has completed. This terminates the drive cycle
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NOTE: If the engine MIL shows during the driving cycle: the malfunction has re-occurred
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s)
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NOTE: This clears the fault storage from P2BAE/P2BAF