Checking backrest locking switch unit (microswitches) — AUDI
Checking backrest locking switch unit (microswitches) on Audi: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for AUDI — the factory write-up, straight from real workshop data.
📋 Procedure
Checking backrest locking switch unit (microswitches)
Connector assignment
Fig.
Checking backrest locking switch
Anchor
Checking upright movement limit switch for backrest
Anchor
Special tools and workshop equipment required
Hand-held multimeter
V.A.G 1526E
Auxiliary measuring set
V.A.G 1594C
Connector assignment
1…6
Pin
A
Multi-pin connector, 6-pin, black
B
Retainer
Note
Connector contacts not listed are not used.
J
Multi-pin connector, 6-pin (T6ai), black
1
Driver seat backrest locking switch
F211
(brown/black)
2
Driver seat backrest locking switch
F211
(blue/black)
3
Driver seat backrest locking switch
F211
(green/black)
4
Upright movement limit switch for driver seat backrest
F381
(brown/black)
5
Upright movement limit switch for driver seat backrest
F381
(yellow/black)
J
Multi-pin connector, 6-pin (T6ak), black
1
Front passenger seat backrest locking switch
F212
(brown/black)
2
Front passenger seat backrest locking switch
F212
(blue/black)
3
Front passenger seat backrest locking switch
F212
(green/black)
4
Upright movement limit switch for front passenger seat backrest
F383
(brown/black)
5
Upright movement limit switch for front passenger seat backrest
F383
(yellow/black)
Checking backrest locking switch
Use
hand-held multimeter
V.A.G 1526E
and test leads from
auxiliary measuring set
V.A.G 1594C
to check
driver seat backrest locking switch
F211
and
front passenger seat backrest locking switch
F212
.
Pin 1 + 3
Specification
Driver seat backrest locking switch
F211
/
front passenger seat backrest locking switch
F212
not operated
No continuity (approx. ∞ Ohm)
Driver seat backrest locking switch
F211
/
front passenger seat backrest locking switch
F212
operated
Continuity (approx. 0 Ohm)
Pin 1 + 2
Specification
Driver seat backrest locking switch
F211
/
front passenger seat backrest locking switch
F212
not operated
Continuity (approx. 0 Ohm)
Driver seat backrest locking switch
F211
/
front passenger seat backrest locking switch
F212
operated
No continuity (approx. ∞ Ohm)
Checking upright movement limit switch for backrest
Use
hand-held multimeter
V.A.G 1526E
and test leads from
auxiliary measuring set
V.A.G 1594C
to check
upright movement limit switch for driver seat backrest
F381
and
upright movement limit switch for front passenger seat backrest
F383
.
Pin 4 + 5
Specification
Upright movement limit switch for driver seat backrest
F381
/
upright movement limit switch for front passenger seat backrest
F383
not operated
No continuity (approx. ∞ Ohm)
Upright movement limit switch for driver seat backrest
F381
/
upright movement limit switch for front passenger seat backrest
F383
operated
Continuity (approx. 0 Ohm)
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.