Battery -A-, DISCONNECTING AND CONNECTING: Connecting
WARNING: This page is about a different car, the 2024 Audi SQ8, 2024 Audi Q8, 2023 Audi SQ8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.
-- Disconnect the connector -2- from the Battery Monitoring Control Module -J367- -item 3-.
-- To connect the battery ground cable terminal clamp to the battery negative terminal "-" by hand tighten the nut -1-.
-- Reconnect the connector to the Battery Monitoring Control Module -J367-.
-- Re-energize the 48V system. Refer to 48V SYSTEM, RE-ENERGIZING .
When the Battery -A- is reconnected, the following steps must be performed:
- Activate the one-touch up/down function for the power window regulators. Refer to the appropriate Service Information.
- Check DTC memories of all control modules and delete the displayed entry "Undervoltage" using the Vehicle Diagnostic Tester.
TIP:
After reconnecting the power supply, the ESP warning lamp can only go out after the vehicle has been driven a few meters.
Tightening Specifications
- Refer to OVERVIEW - Battery -A-.