What the diagram is for
A pinout tells you what each pin does. The universal wiring diagram shows how everything connects together: power feeds, relays, grounds, sensors and outputs around the Elite VMS or VMS T. It is the reference you want when you are building a loom from scratch or checking someone else's work.
When you need it
- Wiring a VMS or VMS T with a universal harness rather than a plug-in.
- Adding sensors or outputs that were not in the original install.
- Tracking down a power, ground or relay fault.
What to check
- Power and ground paths, and that relays are fed and switched as shown.
- Every connection against the VMS pinout before you power the ECU.
- Harness colors against the semi-terminated harness diagram if you are using one.
Start with the VMS overview if this ECU is new to you.
Need this diagram? Ask us and we'll send it over with advice for your build.
