BMW 5 Series: Control units on the PT-CAN2
Electronic transmission control (EGS)
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Electronic transmission control (EGS)
Gear selector switch (GWS)
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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)
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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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Control units on the FlexRay
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
Control units on the local CAN
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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Using the voice activation
system
Activating the voice activation
system
1. Press the button on the
steering
wheel.
2. Wait for the signal.
3. Say the command.
The symbol on the Control Display
indicates
that the voice activation system is
active.
No other commands may be available. In this
case, operate the function via iDri
Using the voice activation
system of the smartphone
A smartphone connected to the vehicle can be
used via voice activation.
Activate voice command response on the smartphone
for this purpose.
1. Press and hold the button on the
steering wheel for approx. 3 seconds.
Voice command response is activated on the
smartphone.
2. Release the button.
If a
