Electrical help....

[defysgravity]

....gauges worked fine before the motor removal. Now there is nothing coming on. Checked and re-checked all connections, dielectric greased all of them. Sled runs great, put on 40 miles yesterday but no power to dash or brake light....
Any ideas on where I should start testing first....?

 

[LUBA]

voltage regulator and chasis relay.

 

[BIGGDAWG]

the chassis relay controls the lights but it is turned on by the ecu after the sled is running.

to test it the chassis relay is the one above the stator on the frame brace taped to the harness.

the White/blue wire is grounded by the ecu to turn the relay on

red wires are power in from regulator

Red/white wires are power out to the gauges and lights

check to see if you have power to the red wires with it running if so check for ground on the white blue wire by putting your test light on the red power wire and the white/blue wire if it lights you have ground and your relay is bad if not the ecu isn't grounding or a broken wire.

hope this helps

 

[defysgravity]

Thanks Luba....what I was thinking so that affirms it. And I guess I'll pull the plug to the hood and see if there's juice to that point.
There's no in line fuse hiding anywhere on the 9 is there????

 

[LUBA]

No fuse.

 

[defysgravity]

New chassis relay...maybe i got a bad one from napa. Will test.

 

[LUBA]

I thought the Napa relays wouldn't work? Try a Polaris one.

 

[MacDawg productions]

Napas are much better quality than polaris, and a fraction of the cost. Better yet, check out Lordco, they have Hellas for $6 bucks!!!

 

[defysgravity]

Well crap.....good power in, nothing on the white/blue. Sucks cause it worked when rolled into the shop....Did I say how much I hate elecrical puzzles...

 

[r.c.rob]

Napa relay fried me ecu.

Whatever you do dont use the napa relay AR274 that is sugested on this form is will fry your ecu. That b.s. cost me $350 and dident fix any thing.
The person that said that relay is cheeper and better needs to put one on there sled. Because I Know they havent tried it yet. A$$ hole.

 

[turbo RMK]

could also be the capacitor just replaced mine lights would get dimmer when reved up

 

[defysgravity]

Sled runs great...if ecu was toast then sled shouldn't run, right?
She was at the dealer and plugged into the digital wrench and tested for exhaust probe issues and codes...nothing. Maybe I went overboard with dielectric grease and it's grounding somewhere....

 

[benamen]

Here is a post with a similar problem.

http://www.snowestonline.com/forum/showthread.php?t=182561

 

[LUBA]

I just had an ecu where the sled would run fine just would not shut off- I swapped it with a known good ecu and sled now will shut down and run normal-weird.

 

[LUBA]

Whatever you do dont use the napa relay AR274 that is sugested on this form is will fry your ecu. That b.s. cost me $350 and dident fix any thing.
The person that said that relay is cheeper and better needs to put one on there sled. Because I Know they havent tried it yet. A$$ hole.

I have heard of a few people on here having problems when they went to replace that relay with a different brand. I have heard people say it works great with the Napa one-I wouldn't chance it. Run the OEM one.

 

[defysgravity]

Yeah, no kidding....have 5700 miles on the oem and showing 82 Ohms when tested.
Tried the jumper trick like on the other thread but no luck...
Guess I'll pull the tank and start from scratch and check Ohms as I go.

 

[r.c.rob]

Sled runs great...if ecu was toast then sled shouldn't run, right?
She was at the dealer and plugged into the digital wrench and tested for exhaust probe issues and codes...nothing. Maybe I went overboard with dielectric grease and it's grounding somewhere....

Right. If ecu is bad it will not run over 1/4 throtle then starts bogging and back fireing.
But it starts fine. Like its in start up mode or fale safe mode.

You can never have too much deilectric grease unless its running out the bottom of the sled.
Rob

 

[ghostwhite]

I know when I was messing with my handle-bar wiring, I had a couple still disconnected when I started it up the first time. When I was messing with something one of those wires grounded out and all the lights shut off. I would recheck some of your other wires, not just the ones with the lights and relays.