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 for diesel exhaust fluid line under pressure error
- Electrical Cause
- No
- Mechanical Cause
- Yes
- Control Module Cavity
- Not applicable
- Monitor Description
- If modelled pressure falls below 4.5 bar the system is purged and pressure is built up again. If this occurs during a drive cycle the error is set
- Prioritized List of Possible Causes
- The powertrain control module has determined failures where some circuit quantity, reported via serial data, is above a specified range
- DEF injector dosing too high. Diesel Exhaust Fluid injection pump delivers too much DEF
- Diesel exhaust fluid line leakage
- Diesel exhaust fluid line air bubbles
- Diesel exhaust fluid tank module circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion