Cable for Porsche System Tester 2 / PST2/ KTS 500

[JayG]

where did you get a PST2 from?

[Madmax08154711]

Originally Posted by JayG

where did you get a PST2 from?

see my first post: from ebay

[Madmax08154711]

This is what I found, but I still need the pinout for Bosch cabel 1 684 462 386 or the Porsche cabel 000 721 958 85

[hemonu]

Originally Posted by Madmax08154711

This is what I found, but I still need the pinout for Bosch cabel 1 684 462 386 or the Porsche cabel 000 721 958 85

I got a PST-2 with the upper cables and an ODB2 breakout box. No description, so similar problem as you. I found another thread on rennlist.org and have the wiring diagramm for 2000 and 2001 model.

Lower part of your diagramm is the old round 19 pin service connector. I can map that connector to a 16 pin ODB2 as follows

14: TN/ rev counter is pin 9 on odb2
7: L line is pin 15 on odb2
10: GND is pin 4 and 5 on odb2. Has to be connected to both
13: switched +12V is pin 1 on odb2. You can use pin 16 alternatively
15: not used
19: knocking pulse is pin 11 on odb2. Not connected in 2001 model

8: thats the k line, which is the main communication line for the tester. If you connect it to pin 7 on odb2 you can communicate with dme and immobilizer. If you connect to pin 3 you can communicate to all other ECUs. According to the rennlist thread you have to connect to both. Thats makes sense and shouldn't be a problem, but I still have to test!

Good luck

Update: I just tested it. With k line connected to both pin 7 and pin 3 of odb2 i could activate my cruise control including the light in the instrument cluster. Seems to be correct :-)

[Madmax08154711]

In addtition i found the following.



1999 Porsche Boxster OBDii connector pinout
Pin # OBD-II Purpose Porsche Specific Wire Color Notes
1 - power black/red max 5 Amps
2 - - -
3 - K line #2 orange/blue
4 chassis ground - -
5 sensor 0 volts - brown/blue do not use as a ground
6 - - -
7 ISO 9141-2 K line - orange/black
8 - - -
9 - TN signal violet/green tach wire, 12v square wave
10 - - -
11 - - blue/black
12 - sensor voltage red/yellow/black 5v sensor power
13 - - -
14 - - -
15 ISO 9141-2 L line - red/yellow
16 unswitched power - red/black max 5 Amps

So the question is was about the OBD2 Pin 12 (sensor voltage)

[hemonu]

Originally Posted by Madmax08154711

In addtition i found the following.



1999 Porsche Boxster OBDii connector pinout
Pin # OBD-II Purpose Porsche Specific Wire Color Notes
1 - power black/red max 5 Amps
2 - - -
3 - K line #2 orange/blue
4 chassis ground - -
5 sensor 0 volts - brown/blue do not use as a ground
6 - - -
7 ISO 9141-2 K line - orange/black
8 - - -
9 - TN signal violet/green tach wire, 12v square wave
10 - - -
11 - - blue/black
12 - sensor voltage red/yellow/black 5v sensor power
13 - - -
14 - - -
15 ISO 9141-2 L line - red/yellow
16 unswitched power - red/black max 5 Amps

So the question is was about the OBD2 Pin 12 (sensor voltage)

pin 12 is not connected in the Boxster 00/01 wiring diagramms and I left it open.

[Madmax08154711]

Originally Posted by hemonu

pin 12 is not connected in the Boxster 00/01 wiring diagramms and I left it open.

That is what I found