Control Units; Onboard Supply Control Unit J519 - Skoda Octavia II 2004 Workshop Manual

Octavia II 2004 ➤ , Octavia II 2010 ➤
Electrical system - Edition 12.2013
2

Control units

⇒ "2.1 Onboard supply control unit J519 ", page 186
⇒ "2.2 Central control unit for convenience system J393 ",
page 189
⇒ "2.3 Data bus diagnostic interface Gateway J533 ",
page 191
2.1 Onboard supply control unit - J519-
General description
The vehicle voltage control unit - J519- communicates with other
control units via the data buses CAN bus, its own data buses LIN
bus and data interface GATEWAY.
As of MY 2009 (Facelift), this control unit also regulates the con‐
venience functions of the vehicle (for vehicles up to MY 2008, the
convenience functions were regulated via the Convenience sys‐
tem central control unit - J393- , which is no longer fitted as of MY
2009).
If the vehicle voltage control unit - J519- is replaced, the new
control unit must be coded
After the replacement (depending on equipment) the functions of
the control unit such as "remote control for central locking", "anti-
theft warning system", etc. must be adapted see
Other information:
• ⇒ Self-study programme No. 54 ; Škoda Octavia; Electrical
Components
• ⇒ Self-study programme No. 66 ; Škoda Superb II: Vehicle
introduction part. ll (as of MY 2009, the vehicle voltage control
unit is similar as for Superb ll)
• ⇒ Vehicle diagnostic tester
• ⇒ Current flow diagrams, Electrical fault finding and Fitting lo‐
cations
⇒ "2.1.1 Removing and installing the vehicle voltage control unit
J519 ", page 186
⇒ "2.1.2 Coding the vehicle voltage control unit J519 ",
page 187
⇒ "2.1.3 Adapting the functions of the vehicle voltage control unit
J519 ", page 188
⇒ "2.1.4 Actuator diagnosis of the vehicle voltage control unit J519
", page 189
Fault recognition and fault display
The onboard supply control unit - J519- is equipped with self-di‐
agnosis, which facilitates fault finding.
For fault finding use the ⇒ Vehicle diagnostic tester in the function
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"Targeted fault finding".
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
2.1.1 Removing and installing the vehicle volt‐
age control unit - J519-
Removing
– Disconnect battery earth strap
– Remove lower part of the dash panel insert on the driver's side
⇒ Body; Rep. gr. 70 Work.
186
Rep. gr.97 - Wiring
⇒ page 187 .
⇒ page 188
⇒ page 2 .
.