[Solved] Renault Master - Adblue DF049 Adblue dosing module computer brak komunikatu

Hello
I have a problem with Renault Master 2017 2.3 165 HP. Namely, the engine light and the key appear, along with the information "check the exhaust system". After connecting the tester, error DF049 appears - Adblue dosing module computer no message. I checked the cables, but I didn't measure anything because I don't have any information about it in the car data and everything looks OK. I went to the service center and after the diagnostics they told me that I had to start by replacing the module and the cost was PLN 3,000, but that it could be something more. , we will see when they install the new module. I ordered a module with the same numbers, moved it, copied the data from the module and the error still cannot be cleared. Does anyone have any suggestions to solve this problem?

I have a similar problem with RENAULT MASTER 3 2.3DCI 170 HP. After connecting the computer, JalTest shows a fault in the Nox sensor before and after the catalytic converter and an error in the AdBlue heater cable. I have several other Masters and I tested the sensors, but to no avail. After deleting the errors, the first two engine starts without errors, and after the next one again "Check the exhaust system" and the same errors. Do you have a solution to the problem?

Test the AdBlue pump and heater and see if you can hear them working. For me, the reason for the error was the AdBlue pump - after replacing it, everything returned to normal.