Hi I have a audi A3 . And I have fault code in the canbuss conection. I get fault code dtc 00470.
I have found 1 wire in diffrent modul climatonic J255 , Conversion electronics J393,
And Radio. I can understand that I have fault in J255 - J393 because they use the same canbuss But the radio use another canbuss.
I have check conection between all the Modul and I have no broken conection for the convention canbuss. When I check the canbuss level I have for canbuss low 0.9 v.
And for the canbuss high I have 4 V. The same att the radio unit . And the hazard varning switch ligt come on. I have no battery drain.
And I don't now witch resistans I shod have because it's many diffrent Modul is conected to the canbuss for the convenience buss. Did some one have a fault like this before. The radio come on and off. I belve it is because faulty canbuss. Ordinary resistans shod bee 120/2 = 60 ohm. I don't now what I shod bee because it's more than two Modul conect to the canbuss
I have found 1 wire in diffrent modul climatonic J255 , Conversion electronics J393,
And Radio. I can understand that I have fault in J255 - J393 because they use the same canbuss But the radio use another canbuss.
I have check conection between all the Modul and I have no broken conection for the convention canbuss. When I check the canbuss level I have for canbuss low 0.9 v.
And for the canbuss high I have 4 V. The same att the radio unit . And the hazard varning switch ligt come on. I have no battery drain.
And I don't now witch resistans I shod have because it's many diffrent Modul is conected to the canbuss for the convenience buss. Did some one have a fault like this before. The radio come on and off. I belve it is because faulty canbuss. Ordinary resistans shod bee 120/2 = 60 ohm. I don't now what I shod bee because it's more than two Modul conect to the canbuss