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 MANUALSAUDI2009A6 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 13 (3.0L - ENGINE CONTROLS - FUEL INJECTION & IGNITION, ENGINE CODE(S): AVK, BGN)28 IGNITION/GLOW PLUG SYSTEMIGNITION SYSTEM, CHECKINGMOTRONIC ENGINE CONTROL MODULE (ECM) POWER SUPPLY RELAY -J271-, CHECKINGCHECKING POWER SUPPLY
2009 Audi A6 Base
Checking power supply
2009 Audi A6 BaseSECTION Checking power supply
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- Connect multimeter as follows to measure voltage.
| Relay carrier in electronics box, plenum chamber, position 2 Terminal |
Measure to |
| 1 | Engine ground |
| 2 | Engine ground |
- Specified value: approx. battery voltage
If specified value is not attained:
- Check wiring connections.
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
RENDER: 1.0x
NO RELATED
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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.