S4 Sedan L5-2226cc 2.22L DOHC Turbo (AAN) (1992)
/Page-894001.png)
Data Link Connector: Description and Operation
Exciter Wire Signal
The Exciter Wire Signal is connected to pin 13 of the Motronic control module, the signal is directional IN only (PIN 13 - INPUT ONLY).
The exciter wire signal is used for activation of rapid data download (Diagnostic Trouble code extraction) via the white data link connector (L-wire).
Signal Failure
^
When there is a break in the signal wiring (L-wire), the following text appears on the V.A.G. 1551: "control module does not answer".
