BMW 7 Series: System Overview

Input/output - Outside Mirrors

Fig. 88: Outside Mirrors Input/Output System Diagram

COMPONENTS DESCRIPTION CHART

1. Instrument cluster
2. Footwell module FRM
3. Outside temperature sensor
4. Junction box electronics JB
5. Outside mirror, passenger's side
6. Mirror adjustment switch in driver's door switch cluster SBFA
7. Outside mirror, driver's side

K-CAN2 - Body CAN 2

Instrument cluster (1) records the outside temperature and makes this information available to the vehicle electrical system.

Junction box electronics (4) supply the outside mirror heating. The outside mirrors (5 + 6) can be adjusted with the mirror adjustment switch in the driver's door switch cluster (6).

System Circuit Diagram - Outside Mirror High

Fig. 89: Outside Mirror High System Circuit Diagram

COMPONENTS DESCRIPTION CHART

1. Central gateway module (ZGM)
2. Car Access System (CAS)
3. Outside temperature sensor
4. Junction box electronics (JB)
5. Outside mirror heating, passenger's side
6. Motor for folding mirror function, passenger's side
7. Memory, outside mirror potentiometer, passenger's side
8. Electrochromic outside mirror, passenger's side
9. Actuator motor for passenger's side outside mirror
10. Driver's door switch cluster (SBFA) with mirror selector switch
11. Driver's door switch cluster (SBFA) with mirror adjustment switch
12. Driver's door switch cluster (SBFA)
13. Actuator motor for driver's outside mirror
14. Electrochromic outside mirror, driver's side
15. Memory, outside mirror potentiometer, driver's side
16. Motor for folding mirror function, driver's side
17. Outside mirror heating, driver's side
18. Footwell module (FRM)
19. Instrument cluster
20. Front distribution box

LIN-Bus - Local Interconnect Network bus
KI. 30B - Terminal 30 basic operation
KI. 58g - Terminal 58g
K-CAN2 - Body CAN2
PT-CAN - Powertrain CAN with mirror folding switch

K-CAN2 signals at footwell module

K-CAN SIGNALS CHART

The instrument cluster (19) receives the value corresponding to the outside temperature from the outside temperature sensor (3) and makes it available via the PT-CAN. The footwell module (18) evaluates the KCAN2 signal and initiates activation of the outside mirror heating (5 and 17).

The mirror adjustment motors (9 and 13) are driven by the electronic mirror module. The electronic mirror module receives the request to adjust the outside mirrors via the LIN-bus. The outside mirrors are connected via the LIN-bus. All information such as the memory-position

or mirror functions, e.g. dip outside mirrors, is transferred via the LIN-bus. 8

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