1 Series E87 118d (M47T2) 5-door
•
Reset contact, front
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Reset contact, rear
The junction box electronics unit controls the following actuators:
•
Wiper relay for wiper stage 1 and 2
•
Wiper relay for rear window
•
Windscreen washer pump relay for headlamp wipe/wash unit
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Central locking system
The junction box electronics (JBE) is the executing control unit for the central locking system. The junction box
electronics assume the task of actuating all central-locking system drives. The following control combinations
are possible:
•
Selective unlocking
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Deadlock release
•
Locking
•
Unlocking and deadlock release
•
Deadlocking
The boot lid lock is activated via its own output stage.
[for more information, please refer to SI Technology 61 01 04 072]
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Climate control
The junction box electronics (JBE) detect the following signals and makes them available to other bus
subscribers:
•
Sensor for automatic air recirculation mode
•
Refrigerant pressure sensor
•
Rear stratification control
The junction box electronics unit controls the following actuators:
•
Auxiliary water pump
•
Control valve for air-conditioning system or magnetic coupling
•
Water valve (depends on engine equipment)
[for more information, please refer to SI Technology 64 01 04 090]
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Seat heating
A seat heating module or the more advanced driver's seat module can be fitted for the seat heating. A seat
module is always fitted with seat memory.
The junction box electronics unit (JBE) sends a request to check whether a seat module has been fitted. If the
junction box electronics unit does not receive a confirmation, the JBE will take over control of the seat heating.
The junction box electronics generate a pulse-width-modulated signal. This signal is used to control the seat
heating module.
If a seat module has been fitted, the seat heating is controlled directly by it.
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Mirror heating and heated washer jets
The junction box electronics (JBE) control the following actuators:
•
Basic variant of mirror heating
•
SBT Junction box E70, E71, E81, E82, E87, E90, E91, E92, E93
BMW AG - TIS
18.01.2013 18:38
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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