Xenon
11-07-2010, 03:15 PM
Hi,
Last week, while driving in very warm weather conditions with a red AYC-light suddenly the TCL light came on. Just a couple of seconds later the engine light came on too. Next day, only the AYC popped up again. Since the AYC light only shows up in very warm weather conditions, I figured out it was time to change the AYC fluid, which I did today. I've also performed the air bleeding job and went for a test drive. Now I have an immediate TCL, followed by an AYC and engine light within seconds...
AYC DTC pops up with code 77 :book: , which is TCL vacuum or Ventilation Solenoid Valve system. Someone already mastered this issue before? Can anybody give me a hint what to check first? :seeking:
Last week, while driving in very warm weather conditions with a red AYC-light suddenly the TCL light came on. Just a couple of seconds later the engine light came on too. Next day, only the AYC popped up again. Since the AYC light only shows up in very warm weather conditions, I figured out it was time to change the AYC fluid, which I did today. I've also performed the air bleeding job and went for a test drive. Now I have an immediate TCL, followed by an AYC and engine light within seconds...
AYC DTC pops up with code 77 :book: , which is TCL vacuum or Ventilation Solenoid Valve system. Someone already mastered this issue before? Can anybody give me a hint what to check first? :seeking: