PCM pin for Tacho

[Laychut]

Hi, I have a genIII 5.7 out of a 2005 VZ Calais. So for I have not been able to identify a wire in the harness for the tacho. I have been told that I should be able to use the No:10 pin on the green Connector (C2) that was used for the Anti lock braking.

Can anyone verify this is correct or suggest the correct pin?

The only wire that I have not been able to identify is a the No:65 pin on the green connector (C2). Does any one know what this pin is for?

Cheers,
Laychut

[Evolution]

Pin 10 on the C2 connector should be right and it should be a Brown wire, but the C2 connector should be red and the C1 connector should be blue.

Someone correct me if I'm wrong.

[Taz]

512 Kb LS1-B PCMs use Blue / Red (C1 / C2) connectors ... 1Mb LS1-B PCMs use Blue / Green (C1 / C2) connectors. A 2005 model will be a 1Mb PCM ... don't have access to Holden wiring schematics.


Regards,
Taz