Well, maybe/possibly. But the diagnostics produce the blink-code, but there is no sound of a relay being switched, and there is no statement about the system being up to pressure. It's a diagnostic function, rather than a system function.
Rather like activating the various controls in the transmission


85 WR quattro
90 V8 Silver, 91 V8 Black, 93 V8 Lago
93 100e quattro V6. Titan, i think