Clipped the following from the documentation listed here on the site:
Fault code 17105 / P0721
Display on -VAS 5051-
17105 / P0721
Gearbox output speed sender -
G195-
Implausible signal
Possible cause of fault
How to rectify fault
♦ Open circuit or short to earth or – Read measured value block
positive in wiring to component
001: With hydraulic control
“Type E17” ⇒ page 98 , with
hydraulic control “Type E18/2”
⇒ page 112
– Check wiring and connector ac‐
cording to current flow diagram.
Also check connector for con‐
tact corrosion or moisture
♦ Gearbox output speed sender - – Perform electrical check, test
G195- defective
step No. 19 ⇒ page 136
♦ Screening for gearbox output
speed sender -G195- defective
♦ Engine speed signal or gearbox – Rectify fault as described for
speed signal incorrect
fault code 17100 / P0716
⇒ page 41
♦ ATF level not OK
– Check ATF level ⇒ Automatic
gearbox 01V, front-wheel drive
and four-wheel drive; Rep. Gr.
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2010 B8 S5 Sportback quattro 3.0 Supercharged in Sprint Blue (current girlfriend)
2000 D2 A8L quattro 4.2 in Audi silver (my ex-girlfriend)
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