More electrical gremlins - falling out of love


Information and questions on GL1500 Goldwings (1988-2000)
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crimbo79
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More electrical gremlins - falling out of love

Postby crimbo79 » Thu Jun 04, 2015 12:50 pm



After having to make up a bypass from the brake switch to the lights a couple of weeks ago after the bodged wiring on my 1500 failed I now have more electrical gremlins.

I was out on her today and journey "a to b" fine no problems, journey "b to c" no problems then about to head off from point "c" and she wouldn't start.

I have a neutral light, cruise light goes out when the kill switch is flicked but pushing the starter button does nothing, no clicks from the solenoid/relays, no effect on the display or lights absolutely nothing. I took the starter button out to see I'd it needed a clean and I noticed mine only has one pair of connections unlike the 2 in all the images.

I have checked all the fuses.

I'm really starting to fall out of love with this poor wing that has been butchered by POs, they have even gone as far as changing all the connections on starter relay a and splicing in an inline fuse holder to bypass what looks like a previous short at the original fuse melting the plastics around the fuse and connector block.

Is it likely to be relay "a" as power is going in but there is no click when the starter is pushed?



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virgilmobile
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Re: More electrical gremlins - falling out of love

Postby virgilmobile » Thu Jun 04, 2015 7:58 pm

With your test probe,see if there's volts on the solenoid "A"coil. For it to click one wire must go to 12 volts and the other zero volts..What do they do.
Here's a schematic of the general possible wiring.
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virgilmobile
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Re: More electrical gremlins - falling out of love

Postby virgilmobile » Thu Jun 04, 2015 8:03 pm

This also brings up a question..Does your bike have reverse?If it does,operate the handle a few times and retry to crank it...There's a switch that can stop it from cranking attached to the reverse lever.

crimbo79
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Fri Jun 05, 2015 2:41 am

Hey thanks for the input, I have 12v going into relay "a" and zero on the other side but that's about it.

The reverse micro switch seems to be working as when you turn the lever the neutral light goes out and the light comes back on when you replace the lever.

I'm unsure about whether the reverse light on the dash should light up if you put it in reverse without the engine running on my 1990 as mine doesn't but I it does light up with the others when you first turn the key.

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virgilmobile
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Re: More electrical gremlins - falling out of love

Postby virgilmobile » Fri Jun 05, 2015 9:01 am

Starter relay A..Is there volts on the small wire (yellow/red) when you push the start button?

crimbo79
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Fri Jun 05, 2015 12:59 pm

Just on the way back to her now to do some more checks.

Will check the red/yellow wire to the relay as you said then if it's not getting any power to the relay through there I will crack open the handlebar controls to see if any power is even getting to the switch. My biggest fear is that when I turn the key, if no power is getting to the starter switch where to look next. I'm not the greatest at following wiring due to being colour blind and team that up with the sheer amount of wiring on a goldwing and if I had hair I I would be pulling it out.

crimbo79
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Fri Jun 05, 2015 1:07 pm

I have ordered relay a and b (Aprox £130) just incase but no one had them in stock in the UK that I could find so I had to order them in from CMSNL in the Netherlands so that will take a few days. I also ordered the positive wiring to the battery as mine seems to be extremely short.

As a side note the wiring that connects to relay A near the fuse, is that connected directly to the main loom/harness as I don't think it's the standard connections on my wiring as it looks like someone has crimped on spade connectors.

crimbo79
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Fri Jun 05, 2015 1:26 pm

Just carried out the checks.

I get 12 volts to the start/reverse switch on turning the key, 12volts at the switch end of the red/yellow wire upon pushing the switch and by the time it gets to the relay end it has dropped to 0.4 of a volt which says to me it has a short, could I run another wire to the relay from the switch as a bypass or could it be another simple fix such as a loose connector somewhere?

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virgilmobile
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Re: More electrical gremlins - falling out of love

Postby virgilmobile » Fri Jun 05, 2015 3:44 pm

The power going into the start button.Does it stay at 12 volts or drop to 0.4 volts.
There isn't a short,there's lack of a good connection.Power that feeds the start button comes from a relay.It can be swapped with another to test it.Double check the schematic but I think its relay#6.

crimbo79
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Fri Jun 05, 2015 4:07 pm

It's a steady solid 12volts in to the switch through the black/green wire when the ignition is live and the when the switch is pushed and the connection is made there is 12volts to the red/yellow wire coming out of the switch.

But like I said where the red/yellow wire connects to relay A it has dropped to .4volts

The schematics I have show relay 6 for 88-89 and relay 8 for 90 and later models but they also both show 4 wires going into the starter/reverse switch but mine only has 2, a red/yellow and a black/green. There are no blue/white or brown/white wires.

Thanks for your advice, it's greatly appreciated

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virgilmobile
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83 GL1100 I
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84 GL 1200 I

Re: More electrical gremlins - falling out of love

Postby virgilmobile » Fri Jun 05, 2015 6:03 pm

Ok.for my clarity please...coming out of your "push to start" button...red/yellow(yellow /red)...It holds steady at the switch but drops to 0.4 volts by the time it gets to the starter solenoid...Correct.????.
If so,just to test this,hook a wire to bypass this one wire....Attach it near the push to start button and close to the connection of the same color code on the start relay A.
If it does then crank,you have 2 options...locate where the wire has been partially cut or bypass it...

crimbo79
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Sat Jun 06, 2015 3:33 am

That's exactly what I thought I would have to do (I mentioned it a couple of posts back)

It's exactly what I had to do with my brake switches a few weeks back so I am definitely thinking my main harness is starting to disintegrate.

Thanks for coming to the same conclusion for the repair as me, it makes sure I'm not going mad and missing something simple.

This forum is invaluable for us in the UK for hints, tips and

crimbo79
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Sat Jun 06, 2015 3:36 am

Hints, tips and general knowledge about Wings as 99% of workshops over here have knowledge and experience with Wings of zero or less.

crimbo79
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Sat Jun 06, 2015 7:18 am

Crisis over.

1 length of wire, a couple of connectors and 30mins later I have a running wing for a total repair cost of about £1.

It must be a broken/braking wire in the main wiring harness as making up a bypass has cured the non start issue.

Thanks Virgin for your pointers they helped hugely.

Now just to cancel the parts order from CMSNL before its sent.

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redial
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Re: More electrical gremlins - falling out of love

Postby redial » Sat Jun 06, 2015 9:12 am

With Virgil, I think it might have been a couple of weeks since he was last called a Virgin :twisted:

Good to see that you have your problem correctly diagnosed, and working, even if it may be slightly temporary. It sounds like you have a mess to overcome, but all lovers are the same, I have heard, you have to be patient. They will love you back when you need to get "down and dirty" :roll:
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

crimbo79
Posts: 62
Joined: Mon Feb 16, 2015 2:43 pm
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1982 GL500 Silverwing (café style)
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Re: More electrical gremlins - falling out of love

Postby crimbo79 » Sat Jun 06, 2015 1:46 pm

Haha that's my phones predictive text for you, I must remember to read what it has written before I click submit.

She is definitely in need of some love starting with a replacement main harness.




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