On my 2000 Audi A6 Avant 1.9L TDI I got the engine code P1904, what is the meaning?

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Carguy1 · Answer 1 · 2019-04-10T15:32:24+0000

Hi there,

This code indicates an issue with the engine coolant hydraulic blower motor solenoid. Here is some info for you.

P1904 AUDI - Engine Coolant Hydraulic Blower Motor Solenoid Open Circuit/Short To Ground
Read more: https://www.autocodes.com/p1904_audi.html