Description
Cummins Celect Plus bench harness for N14 Plus and M11 Plus ECMs. Connects to your bench calibration base on one end and directly to the Celect Plus ECM on the other, for bench testing, ECM programming, and diagnostics off the truck.
Also known as an ECM jumper harness or bypass breakout cable, sometimes searched as “Selectplus” bench harness or bench cable. Used to verify communication, read fault codes, and bench test a Celect Plus ECM with a no-start or no-communication condition.
When do I need a bench harness for my Celect Plus ECM?
A bench harness is useful when a Celect Plus engine shows signs of an ECM issue: a crank-but-no-start condition, no communication with your scan tool, intermittent or random shutdowns, hard starting when hot, or erratic idle. Connecting the ECM on the bench lets you power it up, verify communication, and test the module off the truck to confirm whether the ECM itself is the problem before reinstalling it.
Does this bench harness work for Celect and Celect Plus?
This harness is made for the Cummins Celect Plus ECM (N14 Plus and M11 Plus). The original Celect uses a different ECM connection, so it needs a different harness — we offer a separate Celect bench harness for that. If you are not sure which system your engine uses, contact us before ordering.
At American Diesel, we offer you OEM Harnesses online for diesel engines and provide a variety of Cummins Harnesses for sale from a different brand that includes Cummins



















