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Desperate for Electrical Help Ignition Fuse Keeps Blowing(long read)

ground block issue?
 

Have you tried to isolate the bad circuit with a multimeter? Tedious, but there are only so many test points. Plus if you have a problem that is caused by heat or movement you will still be able to pick up an odd reading if set to Volts or Ohms rather than just continuity,
 
I know this post was from a Nytro, but I stumbled across it and thought it may be worth investigating. Probably not applicable to our Vipers, but didn't want to skip over it in the slight chance that it might apply...

Dimebag said:
Keep in mind that if the ignition fuse suddenly blows, its because the warmers are shorted out to the handlebars..
Click to expand...
 
Over the years doing automotive electrical in the dealer we put in a circuit breaker (or jumper wire if needed) in place of the fuse and watched for smoke.
Leads you right to the source :rofl:

If full coverage just put in jumper and go for a ride, it will take care of itself. :sled2::sled1:
 
03RX1-ER-LE said:
Over the years doing automotive electrical in the dealer we put in a circuit breaker (or jumper wire if needed) in place of the fuse and watched for smoke.
Leads you right to the source :rofl:

If full coverage just put in jumper and go for a ride, it will take care of itself. :sled2::sled1:
Click to expand...
I already tried a 40Amp fuse when it was popping them and no smoke.
 
cannondale27 said:
I already tried a 40Amp fuse when it was popping them and no smoke.
Click to expand...
Fuse opens to quick to see the magic smoke. Heavy quick resetting CB will keep power flowing a tad longer to watch for the magic smoke to show. If that does not work then jumper wire across terminals.
 
03RX1-ER-LE said:
Fuse opens to quick to see the magic smoke. Heavy quick resetting CB will keep power flowing a tad longer to watch for the magic smoke to show. If that does not work then jumper wire across terminals.
Click to expand...
Will be carrying a big paper clip next time I get the nerve up to ride it!
 
cannondale27 said:
Will be carrying a big paper clip next time I get the nerve up to ride it!
Click to expand...
Just make sure your insurance up to date in case you end up with a barbecue.
Also if you have add-ons let your agent know so they are covered. I am insured with Foremost and they have a $1500 in extras coverage for my non-factory equipment.
 
03RX1-ER-LE said:
Just make sure your insurance up to date in case you end up with a barbecue.
Also if you have add-ons let your agent know so they are covered. I am insured with Foremost and they have a $1500 in extras coverage for my non-factory equipment.
Click to expand...
I will find the source just no time now.
 
03RX1-ER-LE said:
Just make sure your insurance up to date in case you end up with a barbecue.
Also if you have add-ons let your agent know so they are covered. I am insured with Foremost and they have a $1500 in extras coverage for my non-factory equipment.
Click to expand...

that's some GREAT advise.
I just lost my viper to a fire.
I had over 6000 invested in aftermarket parts, but could only show receipts for 4500. regardless of the receipt value I was only allotted $1000 for accessories. I took a major azz pounding, but lesson learned. I no longer have as much interest in mods.
 
RTX said:
that's some GREAT advise.
I just lost my viper to a fire.
I had over 6000 invested in aftermarket parts, but could only show receipts for 4500. regardless of the receipt value I was only allotted $1000 for accessories. I took a major azz pounding, but lesson learned. I no longer have as much interest in mods.
Click to expand...
Mine is not leaving shop till I find short. Terrified of fire on any sled.
 
Last edited:
Unfortunately because your issue is not currently presenting a problem your best bet is to purchase new harnesses and replace them. You can then take apart the old harnesses very carefully during the off season and locate the issue. The tool in the video would only be useful if you remove the harness or disconnect the harness from the terminations completely. I do believe if you had a component that has gone bad the 40 amp fuse would have rendered the devise useless and your sled would not run. The ING fuse is only 15 amps and is only used for control. You have done a complete visual and functional test on all of your systems and all of them seem OK.
Your issue smells like a harness issue, more than likely going to ground on the chaise caused by insulation failure.

"Got it home and dragged it off trailer with my little Tractor. Got it in shop. Repeated same thing as above same results blow fuse. Took hood off and did not touch anything. Installed fuse and my extension wire so I can run sled with hood off. Fired right up. Now what?"

You may have already found the bad harness. Reassemble and try it again, and stop using 40 amp fuses, your looking for a problem not trying to create one. Use 15 amp only.

"The role of a fuse is not to protect the equipment from damage. It's to ensure that in the event of a fault, the wiring doesn't overheat and cause a fire. The fuse needs to be rated slightly higher than the maximum operating current of the protected device, so that the fuse won't blow when the equipment is used."

Using a 40 amp fuse or jumper to find the issue is very dangerous. The wire used in your harnesses is not rated for the current supplied via a jumper or 40 amp fuse. The battery fuse supplying the fuse block on your Sr Viper is only rated at 30 amps. The fact you are popping a 40 amp in the ING location is very concerning.
 
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