BMW 7 Series: System Overview
Input/Output - Comfort Access
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Fig. 1: Comfort Access Input/Output Diagram
COMPONENTS DESCRIPTION CHART
- CAS 4 Car Access System 4
- Footwell module (FRM)
- Junction box electronics (JB)
- Emergency start coil (transponder coil)
- Central locking button 12 Driver's door lock cylinder
- ID transmitter
- Diversity module
- START-STOP button
- Antenna for Comfort Access
- Outside door handle electronics module
- Lock with door contact
CA - Comfort Access (function)
K-CAN2 - Body CAN2
System Circuit Diagram - Comfort Access
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Fig. 2: Comfort Access System Circuit Diagram
COMPONENTS DESCRIPTION CHART
- Footwell module (FRM)
- Junction box electronics (JB)
- Front distribution box
- Lock door contact, front-passenger side, front
- Outside door handle electronics, front-passenger side, front
- Antenna for Comfort Access, door sill, front-passenger side
- Lock door contact, front-passenger side, rear
- Outside door handle electronics, front-passenger side, rear
- Luggage-compartment distribution box
- Luggage-compartment antenna, front-passenger side
- Central locking button
- Antenna for Comfort Access, bumper
- Trunk lock
- Luggage compartment lighting
- Interior antenna for Comfort Access, parcel shelf
- Luggage-compartment antenna, driver's side
- Rear driver's side outside door handle electronics
- Lock door contact, driver's side, rear
- Antenna for Comfort Access, door sill, driver's side
- Outside door handle electronics, driver's side, front
- Lock door contact, driver's side, front and locking cylinder in driver's
door
- Car Access System 4 (CAS 4) with Comfort Access (CA) function
- Antenna for Comfort Access, interior, front
- Antenna for Comfort Access, interior, rear
K-CAN2 - Body CAN2
READ NEXT:
Function Overview
Comfort Access is divided into the following functions:
Passive Entry
Passive Go
Passive Exit.
ID transmitters are required for Comfort Access to function.
An ID transmitter co
Control Unit
The Car Access System is located above the steering column on the right-hand
side.
For the Comfort Access function, the Car Access System controls the transmitting
antennas for the veh
SEE MORE:
IMPORTANT: Always check that the solenoid valves are clean during removal
and
installation.
Possible malfunctions if valves are contaminated:
Irregular operation
OBD incorrect entry
Poor exhaust gas values
Low engine performance
IMPORTANT: Risk of damage!
Do not clean solenoid valves with co
Lane Departure Warning
The lane departure warning causes the steering wheel to vibrate to warn the
driver that the vehicle is threatening
to leave the current lane without driver intending it to do so. The prerequisite
for this function to work is the
presence of road or lane markings that can be