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Urea Level Sensor Repair Guide

2023-12-12

1. Sensor Troubleshooting

The following faults can occur with the urea level sensor:

1. Loss of signal: If the "SCR system failure" or "emission system failure" warning light is displayed on the vehicle, this may mean that the signal from the urea level sensor has been lost.

2. Excessive cleaning: Excessive cleaning will make the sensor lose sensitivity, resulting in false alarms or undetectable.

3. Electrical failure: The coil, capacitor or other electrical components of the sensor may be damaged or short-circuited.

In view of the above problems, the following solutions can be adopted:

1. Check the connection of the sensor and the wire to make sure they are not loose.

2. Check whether the sensor is damaged or corroded, and clean or replace it.

3. Try to use methanol to deeply clean the sensor, but be careful to avoid excessive cleaning to avoid damage.

4. If none of the above methods work, the sensor may need to be replaced.

2. cleaning and maintenance

The urea level sensor needs to be cleaned and maintained regularly to ensure its proper operation. The following are recommendations for cleaning maintenance:

1. Clean the sensor at least once a year to prevent dust or water accumulation.

2. Use mild detergent or clean water to clean the sensor housing, do not use strong acid or alkaline detergent to avoid corrosion or damage.

3. If the sensor enters water, clean and maintain it immediately to avoid corrosion and electrical failure.

4. During cleaning and maintenance, be careful not to apply excessive force on the sensor to avoid damage to its structure.

In short, the urea level sensor is an important part of the vehicle emission system and needs to be cleaned and maintained regularly to ensure its normal operation. If the sensor fails, it needs to be gradually checked and repaired to restore its function.

The Importance of Urea Level Sensor

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