FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Lock Cylinder Switch: Description and Operation



GF82.20-P-4105-02GH Rotary Tumbler Microswitches, Function

The contact in the left rear rotary tumbler microswitch (S87/2), the right rear rotary tumbler microswitch (S87/3), the right front door rotary tumbler microswitch (S87/6), the left front door rotary tumbler microswitch (S87/7) or the rear door rotary tumbler microswitch (S88/1) is closed when the respective door is closed (rotary tumbler snapped in place). The status of the switch contact is read by the All Activity Module (AAM) (N10).

The central locking microswitches, which are also installed in the rotary tumbler, indicate whether a door is locked or unlocked. These microswitches are no longer used as of 31.08.02.