Self Study Program 990403 – The 2012 Audi A7 Onboard Power Supply and Networking

VAG SSP 990403. This Self-Study Program provides you with an in depth guide to the onboard power supply system and networking functions of the 2012 A7.

Four-zone air conditioning, head-up display, Bang & Olufsen Advanced Sound System, navigation, WLAN hotspot, massage seats, LED headlights, Night Vision Assist, Audi pre sense, Keyless Go, Audi drive select, Audi active lane assist, reversing camera — all of these convenience features and safety functions would not be possible without the use of increasingly efficient electronics.

To ensure the perfect operation of these electronic components it is necessary to have a stable and reliable onboard power supply, as well as high speed data bus networks.

To achieve this, the 2012 Audi A7 comes equipped with:

  • An aluminum main battery lead
  • Energy recuperation for the alternator system
  • FlexRay bus system
  • LED headlights


  • Introduction
  • Power Supply
    • Jump Start Terminals
    • Battery
    • Main Battery Cable
    • Power Supply Overview
    • Fuses and Relays
  • Networking
    • Control Module Locations
    • Topology
    • 2012 A7 Bus Systems
    • CAN Isolating Connector
    • CAN Adaptor VAG 1598/38
    • FlexRay
  • Control Modules
    • Data Bus On Board Diagnostic Interface J533
    • Battery Monitoring Control Module J367
    • Alternator C
    • Vehicle Electrical System Control Module J519
  • Exterior Lighting
    • Light Switch E1
    • Headlights
    • Side Marker Lights
    • Tail Lights
  • Service
    • ESD Protection During Electronic Repairs
  • Self-Study Programs for the 2012 Audi A7
  • Knowledge Assessment

The Self-Study Program provides introductory information regarding the design and function of new models, automotive components, or technologies.
The Self-Study Program is not a Repair Manual!
All values given are intended as a guideline only.
For maintenance and repair work, always refer to current technical literature.

Language: English
Format: PDF
Pages: 44

Self Study Program 990403 – The 2012 Audi A7 Onboard Power Supply and Networking PDF free online