Checking emergency exit battery voltage: Audi A8 D4

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

Don't miss

• The test voltage is disconnected after 60 minutes without terminal 15!

📋 Procedure

1. Switch on ignition.
2. Connect hand-held multimeterV.A.G 1526 A to test coupling T2oc (right next to (1)) on emergency exit system control unit J479 using auxiliary cables from measuring equipment setV.A.G 1594/C.
3. Measure the voltage.
4. Switch off ignition.
5. Remove the following fuse for the voltage supply to emergency exit system control unit J479:

6. Start the stopwatch.
7. Check emergency exit battery and replace, if necessary . [Note: The test voltage is disconnected after 60 minutes without terminal 15!]
8. Check emergency exit battery and replace, if necessary .
9. Fit all fuses again.
10. Switch on ignition.
11. Switch off ignition.

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