BMW 5 Series: Control units on the PT-CAN2
Electronic transmission control (EGS)
Electronic transmission control (EGS)
Gear selector switch (GWS)
Gear selector switch (GWS)
The gear selector switch (GWS) is used for selecting a drive position.
The bus connection is via the PT-CAN2 and additionally via a local CAN to the
electronic transmission
control (EGS) unit.
Power Control Unit (PCU)
Power Control Unit (PCU)
The Power Control Unit is required:
- For charging the auxiliary battery.
- For supplying the vehicle electrical system from the auxiliary battery.
The Power Control Unit (PCU) contains a DC/DC converter with a power of 500
W.
The preconditions for the direction of the energy management are calculated from
the use of the
vehicle. The auxiliary battery is charged by the PCU when the engine is running.
During the phases
in which the combustion engine is not running, e.g. automatic engine start/stop
function, the PCU
supplies energy from the auxiliary battery to the vehicle electrical system.
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Advanced Crash Safety Module (ACSM)
Advanced Crash Safety Module (ACSM)
The function of the Advanced Crash Safety Module (ACSM) is to evaluate all
sensor signals in order
to identify a crash situati
The control units on the local CAN are not displayed in the bus overview by
the BMW diagnosis
system ISTA. Diagnosis takes place via the corresponding primary control unit.
Radar sensor (primary)
Ra
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Switching on
Press the button on the steering
wheel.
Steering wheel symbol lights up
gray.
The system is on standby and does not
manipulate steering.
System activates automatically as soon as all
function conditions are fulfilled.
Steering wheel symbol lights up
green.
The system is active.
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