Need Help on 2013 GTX 260 Limited IS Wiring Issue

[paulmac201]

I purchased a 2013 GTX 260 Limited IS last fall with 92 hours. I took it out on the lake and within the first hour it lost power. It went into limp mode at first and then went completely dead.

I took it home and started troubleshooting. I then started parts swapping including a new ECM. Still dead.

I started shaking wires going into the ECM a few days later and it lit up. I have isolated the problem to the “B” wiring harness bundle that connects to the ECM. It contains the brown/yellow wire that goes to the starter solenoid. It also contains the black, white/grey and black/yellow wires that go to the DESS. I tried to wire tie the bundle of wires so they can’t move but then I lose all power like it did on the lake. I removed the wire ties and pushed and pulled the wire bundle and the power returned. Moral of the story is I can’t tell exactly which wire is the problem and whether or not the bad wire is in the connector going into the ECM or somewhere down stream.

What should I do? Should I replace the entire wiring harness? Are there diagnostic tests that can be done on the existing wires?

Any and all input is appreciated! I have officially hit a brick wall.

Thanks,

Paul

 

[skiasylum]

You need to isolate the bad wire and then find where it’s corroded or broken. With the ski not working disconnect the wiring bundle from the ECM and the connector of the B wiring harness. Then check continuity with a volt meter of each individual wire. The bad wire/wires will show open. Then you need to open the harness and find the location of the break in the wire and repair it. Easy peasey, lol.