My A6 has stopped connecing to VCDS, I get the message 'not connected to car'. The same cable and laptop connect to the S2 no problem. Today I've tried tracing the wires from the 2x2 plugs back to the ECU.
Black plug
Brown wire - Connects to brown wire on ECU pins 18 & 19
Red/white wire - Connects to red/white wire on ECU pin 43
Also get 12v across these when ignition is on
White plug
Green wire - Connects to Green/Black wire on ECU pin 42
White wire - Should connect to pin 27 on ECU. See pic below. Also connects to the pin shown in bottom RH corner of fusebox.
I have nothing in pin 27
The Haynes manual confirms that the K & L lines should be pins 27 & 42, even if the wire colours are different. My white wire on the 2x2 plug does not connect to anything on the ECU and I'm presuming this is the problem but where should it go??
Anybody got any other ECU schematics for the AEL?
Black plug
Brown wire - Connects to brown wire on ECU pins 18 & 19
Red/white wire - Connects to red/white wire on ECU pin 43
Also get 12v across these when ignition is on
White plug
Green wire - Connects to Green/Black wire on ECU pin 42
White wire - Should connect to pin 27 on ECU. See pic below. Also connects to the pin shown in bottom RH corner of fusebox.
I have nothing in pin 27
The Haynes manual confirms that the K & L lines should be pins 27 & 42, even if the wire colours are different. My white wire on the 2x2 plug does not connect to anything on the ECU and I'm presuming this is the problem but where should it go??
Anybody got any other ECU schematics for the AEL?
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