Vehicle Speed Signal, Checking, From 07.93
WARNING: This page is about a different car, the 2024 Audi S6 and 2024 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Vehicles
The vehicle speed signal is supplied by the speedometer.
If Servotronic voltage supply, Servotronic Valve and vehicle speed display are OK:
-- Check wiring between auxiliary relay panel 1 socket 4 and speedometer according to wiring diagram.
If the wiring is OK:
-- Replace Servotronic control module -J236-.