A4 avant b8.5 2015

[Bryan Mcclean]

My A4 avant has a strange fault .   when I accelerate, the N280 Aircon valve goes to zero, then returns to original value when accelerator is eased off.     On VCDS the shutdown code is always 12.  this means it is being told by the engine ECU to shut down.  Can anyone tell me how to code this out to stop this shutting down on acceleration.......

 

 

cheers

Bryan

[Steve Q]

Could it be a fault with the AC Module?