Removing and installing seat occupied recognition control unit J706 — VW
Removing and installing seat occupied recognition control unit J706 on VW: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📋 Procedure
Removing and installing
seat occupied recognition control unit
J706
Special tools and workshop equipment required
Torque wrench
V.A.G 1783
WARNING
Observe safety instructions for pyrotechnic components
Chapter
.
Before handling pyrotechnic components (e.g. separating the electrical connector), the person handling them must ensure that he/she is
“electrically discharged”
. To do this, briefly touch, for example, the door striker plate.
Remove front seat
Chapter
.
Secure seat to seat repair stand
Chapter
.
Note
The components illustrated may differ in shape and appearance from those shown here. The assembly and function are identical.
Release and separate electrical connector
4
on
seat occupied recognition control unit
J706
1
.
Remove bolt
3
.
Remove
seat occupied recognition control unit
J706
1
from bracket
2
in
direction of arrow
.
Installing
WARNING
Observe safety instructions for pyrotechnic components
Chapter
.
Before handling pyrotechnic components (e.g. connecting the electrical connector), the person handling them must ensure that he/she is
“electrically discharged”
. To do this, briefly touch, for example, the door striker plate.
Install in reverse order, but note the following:
Note
Ensure that the electrical connectors are pushed fully onto stop and engage audibly.
Ensure that no wires are trapped.
If the
seat occupied recognition control unit
J706
has been renewed, basic setting/coding must be carried out in
“Guided fault finding”
Vehicle diagnostic tester
.
WARNING
Battery must be connected with ignition switched on. If pyrotechnic components (e.g. airbag, seat belt tensioners) are repaired incorrectly, undesired triggering may occur after the battery is connected. Ensure that nobody is in vehicle when connecting battery.
Connect battery earth cable with ignition switched on
Electrical system
Rep. gr.
27
Battery; Connecting and disconnecting battery
.
WARNING
If the ignition has not yet been switched on after the battery has been reconnected
“warning lamps in dash panel insert are off”
, the ignition (key or button) must be switched on only while sitting on the driver seat and with the seat set to rearmost position.
Note
If
airbag warning lamp
K75
indicates a fault following installation, event memory must be read, deleted and read again
Vehicle diagnostic tester
.
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.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.