The Elite 2500 connects through a 26-pin and a 34-pin connector. This diagram maps every wire of the 26-pin plug on the premium universal wire-in harness, so you can terminate the flying leads to the right sensors and outputs.
You'll need it when wiring a universal install with the 8 ft premium harness or the 9.8 ft version, including the Elite 2500 harness kit, or when tracing a fault later.
What to check: that you're looking at the diagram for the 26-pin plug and not the 34-pin plug, that the harness is the premium version rather than the short harness, and that each wire's label matches before you cut. Confirm pin assignments in ESP match what you wired, and check continuity with a meter before first power-up.
The Elite 2500 overview has more detail on the ECU itself.
Need this diagram? Ask us and we'll send it over with advice for your build.
