I don´t get any fault with the vcds, but when I stop it does not work as it did before. I have changed the pump and it still does not work. I´m scared because your mission is to cool the turbo when stopping. Any ideas? Thanks. Sorry for my English
I have done test with the vcds and it does it well as if it works correctly, but it does not work or give error code. thanks
No, when I do the output test for the pump I hear only the relay, but the pump does not work. The vcds does not detect that it does not work and does not fail, but it does not workSo when you did the output test for the coolant pump from the Ecu did you hear or feel the pump working. The pump only uses a ground and power through a relay controlled by Ecu. You did not state what car you are working on but you need to find the wiring diagrams for it and see how the coolant punp is wired and what fuses & relays etc are used in the circuit.