Reasons for the Urea Malfunction Light Illuminating in Weichai China V Vehicles

1 Answers
Aurora
07/30/25 2:04am
Reasons for the Urea Malfunction Light Illuminating in Weichai China V Vehicles: 1. Urea Level Sensor: Inaccurate display. Some users report that while the engine consumes urea and the vehicle maintains power, the urea solution level consistently shows 100%, which indicates this issue. 2. Urea Pump: This cannot be self-diagnosed; a computer scan is required. A frequently encountered fault code is P020D, indicating urea pump pressure is too low. This fault code may signify urea pump damage. 3. Urea Injector: The injector is prone to clogging. However, if the internal solenoid valve is damaged or there is an internal short circuit, sparking can be directly observed when the injector contacts the exhaust pipe.
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