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Pin 1 is switched 12v power
Pin 3 is the 2nd K-line that's connected to the ABS, Airbag, PSM, alarm, etc.
Pin 7 is the 1st K-line that's connected to the DME (via the alarm CU)
Pin 11 is the "Knock yes/no" output from the DME 5.2
I added in the OBDII standard Bus pins. The wiring diagram doesn't show anything connected to 2/10 or 6/14. So now it will take someone to drop the OBDII connector and see if there are any wires attached to 2/10 or 6/14.
I added in the OBDII standard Bus pins. The wiring diagram doesn't show anything connected to 2/10 or 6/14. So now it will take someone to drop the OBDII connector and see if there are any wires attached to 2/10 or 6/14.
Ok, I'm diving in to it this afternoon.
Joe, what was the source for the connector picture you posted? I've seen the one Ahsai posted not that one.
Google/Images
OBDII pinouts - that came out with the industry standardized pinouts
then did a search on porsche OBDII pinouts - that came up with the second image with the Bus connectors
I really don't know if the 2/10 or 6/14 wires exist. Haven't been there. Let us know what you see.
Yes, post #5 applies to you so you have pin 11 (option M339 = C40).
Originally Posted by Slakker
Ok, awesome. I guess the only question is whether CAN high/low is 2/10 or 6/14.
Originally Posted by DBJoe996
Google/Images
OBDII pinouts - that came out with the industry standardized pinouts
then did a search on porsche OBDII pinouts - that came up with the second image with the Bus connectors
I really don't know if the 2/10 or 6/14 wires exist. Haven't been there. Let us know what you see.
No, there is no CAN bus access on our OBDII diagnostic port. The CAN bus is between the tiptronic, PSM, and DME and it's not exposed to the OBDII diagnostic port.
Temporarily installing/testing my VBox Video Lite in my DD. What was supposed to be my first race weekend this weekend is now a 3day DE since they still don't have the welded roll cage finished in my track car.
It can only access the ECU through the CAN BUS. I was hoping the OBDII port would be an easy place to tie in. I've got an OBDII splitter that I'm tapping into for power and was hoping CAN as well. Doesn't look like it will work though. Is there any other place that is "easy access" that I can get to the CAN?
Here's the pictures of my OBDII port on my '99 C2.
09-20-2016, 12:36 AM
'99 OBDII Pinouts
