System overview

The following graphic shows the central locking system network.

The current wiring diagrams for the individual model series can be found in the ISTA diagnosis system (Integrated Service Technical Application).

Fig 1: Footwell Module - Circuit Diagram

Courtesy of BMW OF NORTH AMERICA, INC.

Index	Explanation
1	Footwell module (FRM)
2	Central locking button (component part of hazard warning switch and central locking button operating facility)
3	Car Access System (CAS)
4	Junction Box Electronics (JBE)
5	Front power distribution box
6	Ground lights, front passenger door
7	System lock, front passenger door, with central locking drive
8	Ground lights, on rear passenger side
9	System lock, passenger side rear, with central locking drive
10	Automatic luggage compartment lid actuation (HKL)
11	Rear power distribution box
12	Central locking system actuator, fuel filler flap
13	Tailgate pushbutton on inside tailgate with tailgate button for closing large tailgate and tailgate button for opening tailgate further (only F07)
14	Tailgate lock with central locking drive
15	Drive unit for automatic soft-close function, boot lid
16	Number plate light with rear lid button
17	Deadlocking button at tailgate (for example F07)
18	Interference-suppression filter
19	Center high-mount stop lamp
20	Outer tailgate pushbutton
21	Rear-window button (for e.g. F11)
22	Rear window locking (for e.g. F11)
23	Remote control receiver (for e.g. only F12)
24	Remote control receiver in the aerial diversity (for e.g. not F12)
25	Aerial for remote control service (FBD)
26	Remote control or identification signal
27	System lock, driver's side rear, with central locking drive
28	Ground lights, rear driver's side
29	Tailgate pushbutton, passenger compartment
30	central locking drive storage compartment center console
31	Hotel position switch
32	System lock, driver's door, with central locking drive
33	Ground lights, rear driver's side