Audi A4 1.6 year 2000 dash pinout problem

[Jashmine1983]

Hi to all!
I've tried to connect the dash from audi a4 1.6 year 2000, on bank but I could not connect to it on k-line.
Pinout that I have used:
On blue conector: pin 23 batt+, pin 1 ign +, pin 9 & 24 GND.
On green conector: pin 25 kline. I also tried pin 28 for kline, but no connection.
I think is a dash problem... Or me doing wrong pinout.
374401
374403
374402

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[Jashmine1983]

I only want to know if my pinout is good....

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[hansdevogel89]

pinout is correct, green pin 28 k-line
you sure you have obd connector correctly wired up (12v etc..)

[Jashmine1983]

Yes.... Mounted on car still no diag even I have connection on pin 28 from OBD connector. Gues is something wrong with instrument cluster.

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[Jashmine1983]

I've tried to connect to ecu on bank but still can't diag.
I've used the pinout from attached picture. Ecu is SIMOS 3.4A.
I don't understand what is wrong with car? Why can't I diag It through OBD or on bank?

374809

[dragon100]

Hi, is the magneti marelli odo jaeger ? Check solder joints near plug, rework, and try again. Try to disconnect the plug from the odometer and K connect the lines to the line W (look at pinout) and then try connect to the ecu if yes then odo is wrong.

[hansdevogel89]

strange, but if cluster and ecu dont work neither in car or on bench i would suspect your interface or driver issue??

indeed try to bridge w-line

[Jashmine1983]

But why I can't conect to ecu directly using k-line, on bank?

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[Jashmine1983]

I found the problem..... my VCDS cable was bad.... K-line transistor burned.
Thanks all!