Theo12848

Wheres is the power steeing modual sounds stupid but where is it

Change the radio on my audi a3 2.0 fsi 2004 and got the ignition feed from the park assit and garage door opener fuse as it was not being used and after the power steering wudlbt work. The diagnostics says "gateway - no communication with electrohydraulic control modual (j500) " The next day I took all of the sub frame of and gave the steeing rack connections a clean and did the same with the box under the steering wheel. Then turned the steering from one lock to the other and the powwe steering worked, tured the engine of left it for 5 mins and no power steering. The next day I reversd in full lock restarted the car and had powersteering drove for about 30 mins turned the engine off and back on again it stI'll had power steeing left it off for an hour no power steering.Any one have any ideasDid I blow something when I used that fuseDo I new to calibrate or program the steeringWhen doing the radio change the battery went very lowAny help is really apreciated