New Holland 19748 – New Holland Dosing Control Unit Dcu: Too high urea temperature in pump module or leakage test failed

The fault code indicates that the urea temperature in the pump module is too high or that a leakage test has failed, triggering an emergency shut off. This is related to the temperature sensor of the pump module detecting an out-of-range condition.

1. 1

   The temperature sensor of the pump module

2. 2

   The pump module for signs of overheating or damage

3. 3

   The integrity of the urea system for leaks

1. 1

   Inspect the temperature sensor of the pump module

   Check for physical damage or improper installation.

2. 2

   Verify the operation of the temperature sensor of the pump module

   Use a diagnostic tool to confirm the sensor's readings match expected values.

3. 3

   Check the pump module for overheating or damage

   Look for signs of excessive heat or physical damage that could cause the temperature to rise.

4. 4

   Inspect the urea system for leaks

   Perform a visual inspection of the urea lines and connections for any signs of leakage.