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
SEE MORE:
Horn
System wiring diagram
Horns
Horn, left
Horn, right
Relay in the Body Domain Controller
Body Domain Controller (BDC)
Steering column switch cluster (SZL)
Signal path of horn:
When the horn is pressed the signal is received by the steering column
switch cluster (SZL).
The SZL sends the in
Operating temperature
The positions of the rotary valve at engine operating temperature are shown
by area C of the circuit
diagram.
Operating temperature, Bx8TU engine
The graphic shows control with the engine at operating temperature. The
position of the rotary valve
means that the cross-sections of the respective c
