"The only real difference in an 02 to 03 diagram is the grey wire for your reverse, and the wire to your speedo that goes to your reverse light and you small cdi harness. Chassis wiring is the same. On my 03 Escape I completly gutted my wiring took all the idiot lights off and all the bs for electric start off.The wires going to my hood are only power and ground for my high beam.
I wired my temp light and rev light into LEDs on my bars. I have no brake lights,oil indecator or premium idicator. My key switch is still wired for premium and kill. I have a motor cycle kill switch for the rev.I use polaris atv bar warmers. Not saying you have to go this far but its very clean setup.
Grey= rev when this wired is grounder momentarly it goes activates rev
Yellow=power
brown=ground
black= kill (when this wire is closed with ground it kills sled)
yel/red=hi beam
green=lo beam
Blk/white to speedo=temp light
w/or to speedo=prem light
pur=low oil light
orange=brake light
pink/blk=prem switch back to cdi
blue }
blue/rd}= to your hand and thumb warmer
or/gray}
w/gray}
When I wire for a seat of bars I jump power to the hi beam so I don't need a hi/lo switch. Cut all the warmer and right side throttle wiring off.
Take the harness tape it and tuke it behind the air box. Then you can splice into the yel wire for your hand warmers. I use the polaris atv warms out of the catolog becuase they have long wires but I've heard good things about RSI. Here are a few pics of my escape and my cat. You can see the two indicators for my temp a rev on my bars. My cat has a small green indicator on the console for rev. If you are running NOS I know i sweet trick with a rocker switch so you can use your reverse button for NOS too."
Not my info, just knew I had seen someone lay out which wires go to what for these Edge sleds when I was researching how to relocate switches from the bars to the console. Here is a link to that thread:
http://www.snowestonline.com/forum/showthread.php?t=236105&highlight=wiring The text from above is Post #3.
I'm not sure which connector you're asking about, the black one (low oil light) or the white one. I'm not certain what the white connector is for as your pic isn't too clear on it, but it looks like a grey wire and a white wire. The white is for temp sensor I believe, grey: reverse (when momentarily grounded). If thats correct, you had no temp indicator, no deto indicator, and no low oil indicator. Didn't think the sled would run like that, but maybe the ECU still saw a signal?
Who ever rebuilds the motor, make sure they tell you why they think it went down. Detonation (pinging, predetonation, spark knock, etc), if not corrected for a decent amount of time, can take out rod bearings. Melted cylinder head O-rings would indicate overheating. A hole in the center of the piston or at the exhuast port would suggest a lean condition (improper jetting, clogged carb, air leak). Make sure you check your water/oil pump belt.