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82 XS400R Seca headlight cut out problem


nedj10
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Hey everyone

the headlight on my xs400 seca went out last week driving down the road and I cannot figure out why, I currently have the bucket off and the wires all splaid out I have checked every connection I can think of, I have multi metered the light socket wires and see voltage and a good ground, but no head light, I also checked the headlight switch and jumpering it gave no joy either. If I wire the light straight to the battery both filments will light up if I put positive to each on respectly.

Any ideas would be super appreciated.

thanks

Ned Williams

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  • Moderator

Hey everyone

the headlight on my xs400 seca went out last week driving down the road and I cannot figure out why, I currently have the bucket off and the wires all splaid out I have checked every connection I can think of, I have multi metered the light socket wires and see voltage and a good ground, but no head light, I also checked the headlight switch and jumpering it gave no joy either. If I wire the light straight to the battery both filments will light up if I put positive to each on respectly.

Any ideas would be super appreciated.

thanks

Ned Williams

I would suspect the headlamp relay

drewps

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You have voltage and a ground...what about the lamp itself?

[edit]

Sorry, just saw that both filaments light up. Is yours one of those (like mine) that only lights up when the bike is running?

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  • 2 weeks later...

The light comes on when the key is switched to the on position.

Where is the headlight relay located? I havn't seen any relay's in the headlight bucket?

thanks

Ned

You have voltage and a ground...what about the lamp itself?

[edit]

Sorry, just saw that both filaments light up. Is yours one of those (like mine) that only lights up when the bike is running?

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The light comes on when the key is switched to the on position.

Where is the headlight relay located? I havn't seen any relay's in the headlight bucket?

thanks

Ned

i think it is under the tank not too clued up on the us versions!

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  • 3 weeks later...

i think it is under the tank not too clued up on the us versions!

After digging through schematics I found (3) relays on the seca 1 identifies itself as a flasher relay and the other two are just listed as "relay" both appear to situated just under the seat and are 2 square relays with 4 wires coming out of them. judging by the direction of the wires I think the right side one has wires pointing towards the headlight.

So now a simple question how do you test them? at 70 bucks a pop for a new one I would like to make sure its the broken part before ordering them?

thanks!

Ned Williams

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After digging through schematics I found (3) relays on the seca 1 identifies itself as a flasher relay and the other two are just listed as "relay" both appear to situated just under the seat and are 2 square relays with 4 wires coming out of them. judging by the direction of the wires I think the right side one has wires pointing towards the headlight.

So now a simple question how do you test them? at 70 bucks a pop for a new one I would like to make sure its the broken part before ordering them?

thanks!

Ned Williams

apply voltage and you should hear a click as the bus bar go across the terminals inside the unit. try and get a code off it as relays are really common and cheap.

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