OBD2 pins / testing problem

3723 Views 5 Replies 4 Participants Last post by PROXUS, Dec 11, 2005

PROXUS

Discussion Starter · Dec 10, 2005

I have VAG HEX-USB with latest 510beta. I'm trying to connect (on desk) RNS-E to VAG via OBD2 connector but I have some problems.
I found pins description and Dirk & Craig confirmed that only K-Line & POWER is necessary to code RNS-E.

My connected wires are:
pin 5 - GND
pin 16 - 12V+
pin 7 - K-line

but it doesn't work :evil: I tested this wil power supply and in car cigaret lighter, same thing - LED is off.
I tought that my VAG cable is faulty but when I connect it direct into car OBD - everything is fine.

Do you have any ideas

This is General pin description:

Pin 2 - J1850 Bus+
Pin 4 - Chassis Ground
Pin 5 - Signal Ground
Pin 6 - CAN High (J-2284)
Pin 7 - ISO 9141-2 K Line
Pin 10 - J1850 Bus
Pin 14 - CAN Low (J-2284)
Pin 15 - ISO 9141-2 L Line
Pin 16 - Battery Power :?:

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AudiA4B6US

· #4 · Dec 11, 2005

Here's what I'm using to bench test with VAG-COM:

pin 1 - 12V+
pin 4 - GND
pin 5 - GND
pin 7 - k-Line
pin 14 - L-Line (or k2)
pin 16 - 12V+

I can connect to my RNS-E using the k or the L line but to connet to the phone interface I have to have the RNS-E connected to L and the phone interface connected to k.

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