Self-Study Programme 17 Octavia convenience electronic system.pdf

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The Decentralized Convenience Electronics
System in the SKODA OCTAVIA
CAN BUS
SP17-1
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Q
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HELP
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V.A.G. 1552
SP17-2
The SKODA OCTAVIA features a decentralized
convenience electronics system, which comprises the following base functions:
–Electric central locking with superlock and interior light control
–
Electric window lifters with roll-back function
–
Electric mirror adjustment.
The following are also integrated optionally
–
Radio remote control
–
Anti-theft alarm including interior monitor.
These convenience functions are interlinked by a CAN bus system which enables all of the sy-
stems to transfer data.
Comprehensive self-diagnosis assists service work.
Important!
Before carrying out any service work on the system, the first action is to start the self-diagnosis.
Model changes may result in modifications to individual functions.
For this reason, always refer to the up-to-date workshop manual.
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Index
Convenience Electronics
The Convenience Electronics System
System Structure in the Vehicle
Functions
The Driver's Door as an Example of the Operating
Principle of the Convenience Electronics
Central Locking
The Driver's Door as an Example of the Function Diagram
of Central Locking
Electric Window Lifters
Interior Light Control
Radio Remote Control
Mirror Adjustment, Mirror Heater
Central Control Unit
Self-Diagnosis
Special Functions
Special Functions in the Event of a Crash
Emergency Operation Functions
System Behaviour in the Sleep Model
Opening Versions of Central Locking
Mechatronics
Door Lock Electronics
Door Lock with Microswitch
The Rotary Tumbler Switch
CAN BUS Dictionary
Test Your Knowledge
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Service
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Service Service
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Service Service
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Refer to the Workshop Manual for notes on
inspection and servicing, setting and repair
instructions.
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Convenience Electronics
The Convenience Electronics System
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SP17-8
The control units of the convenience electronics system
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Convenience electronics central control unit J393
Driver's door control unit J386
Rear left door control unit J388
Passenger's door control unit J387
Rear right door control unit J389
The decentralized convenience electronics system of the OCTAVIA comprises a central control unit
and four door control units.
Each door control unit operates independently (decentralized). The central control unit does not
have any master function.
The control units of the 4 doors and the central control unit are interlinked by a 2-wire dataline
(CAN = Controller Area Network).
The central control unit is at the same time the access point for the diagnostic interface of the
vehicle.
Diagnostics is conducted using the K wire connection of the central control unit.
Information from the doors (switch signals, locking states) are signalled to the other users along the
CAN datalines.
Information from the vehicle (e.g. ignition terminal 15, rear window heater, vehicle speed) is supp-
lied by the central control unit as part of data transfer.
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Convenience Electronics System
Control Components
Decentralized
Centralized
Door control units
D I A G N O ST I C S
Central control unit
– Interior light control
– Tailgate central locking
– Anti-theft alarm with and
without interior monitor
– Monitoring and swit-
ching off power supply of
interior light and lug-
gage compartment light
– Operation of sliding/til-
ting roof
– Central locking and SAFE
state
– Electric window lifters with
roll-back function
– Mirror adjustment
– Mirror heater
Note:
Vehicles equipped with the convenience electronics system on the one hand are not equi-
valent to vehicles fitted only with the central locking system on the other hand.
The highest equipment level is offered by the convenience electronics system with central
locking, electric window lifters and radio remote control.
Models with a lower level of equipment feature central locking with manually operated
windows.
The description of the convenience electronics system in this booklet relates to the high-
est equipment level.
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Convenience Electronics
System Structure in the Vehicle
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F Z
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CAN-H
CAN-H
CAN-L
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CAN-L
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CAN-H
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CAN-H
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CAN-L
CAN-L
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SP17-09
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