This particular board is from a poverty pack VN. Calais and Statesman have an LCD odometer, so may have a different board. It basicly takes the pulse from the speed sensor, and divides the count by 5 before sending it to the ECU. If you run a VN computer without it, you'l get fault codes and stalling on deceleration.. Hey guys just putting up a sort of thread for wiring diagrams for VN commodores (most should be the same for the VP) from the workshop manual book i have that has helped me out with the wiring for my VH V6 conversion. i hope that the iinfo i put up will be of some help for you other guys out there needing to find wiring info on the VN as i had some trouble from time to time looking on google.
Holden VN Commodore V8 Electronic Control Module Wiring Diagram 2 pages PDF 71% (7). Stereo Wiring Diagrams Stereowiringdiagram.info is the premier website for wiring diagrams and information related to car stereos! We have extensive documents available that cover a wide range of common automakers, making it easy for you to find exactly what you need.