DTC 15.5 on Audi TT MK1 [Archive] - Audi Forums

: DTC 15.5 on Audi TT MK1

04-01-2010, 11:24 PM
I've got Check Engine light on my 2001 Audi TT. I've used climatronic to retrieve the code of malfunction (chose 1C), and it showed up 15.5.

15.5 Air Flow Flap, static block, see *15.5 (see below)
*15.5 Motor is cycled; software attempts to eliminate block

What the heck does this mean and what could be the problem?

Check Engine light turns off overnight, but than goes back on after an hour or so of drive.