Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2012A3 (8PA) L4-2.0L TURBO (CCTA)REPAIR AND DIAGNOSISSTARTING AND CHARGINGPOWER AND GROUND DISTRIBUTIONRELAYS AND MODULES - POWER AND GROUND DISTRIBUTIONPOWER DISTRIBUTION MODULESERVICE AND REPAIRVEHICLE ELECTRICAL SYSTEM CONTROL MODULE, FROM 06.2008
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)
Vehicle Electrical System Control Module, From 06.2008
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)SECTION Vehicle Electrical System Control Module, From 06.2008
Vehicle Electrical System Control Module, from 06.2008
Removing
- If the control module was replaced, select the Replace function for the respective control module in Guided Fault Finding or Guided Functions.
- Switch off ignition and remove ignition key.
- Remove the 5-plug relay carrier. Refer to => [ 5-Plug Relay Carrier, from 06.2008 ] 5-Plug Relay Carrier, From 06.2008.
- Disconnect electrical connectors - 2 through 4 -.
- To disconnect electrical connector, press catch - 1 -, turn retaining bracket in - direction of arrow - and remove connector.
- Release retaining springs - arrows - and remove vehicle electrical system control module (J519) - 1 - from the base mount.
Installing
Install in reverse order of removal, observing the following:
If the vehicle electrical system control module was replaced, then is must be re-coded.
- Select the function or path
- Follow the instructions on the Vehicle Diagnosis Tester display.
- Install the 5-plug relay carrier. Refer to => [ 5-Plug Relay Carrier, from 06.2008 ] 5-Plug Relay Carrier, From 06.2008.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.