Indicators

[Daleboy]

Hi I have a gl1800 2002 this morning I put the indicator on to turn right and both indicators came on I turned on the left indicator same thing happened when I put hazards on they flash once and then goes off everything else works any information be great thanks dale uk

[Techdude2000]

Hi I have a gl1800 2002 this morning I put the indicator on to turn right and both indicators came on I turned on the left indicator same thing happened when I put hazards on they flash once and then goes off everything else works any information be great thanks dale uk

You have a bad connection in the 14 pin gray connector under the seat to the rear of the relay bank. It’s the green wire that is the ground for the rear lighting. Bypassing the connector with a soldered in jumper is the only permanent fix for it. There’s also a 12 pin connector, that’s not the correct one that will cause this issue.

[Daleboy]

Thank you hope it works dale uk hi so I cut the green wire at both ends and then connect them with a jumper wire

[Daleboy]

Hi have you a picture of the connector cheers dale

[Techdude2000]

Hi have you a picture of the connector cheers dale

Yes

[Daleboy]

Hi mate did what you said still the same also no brake light any information cheers dale

[Techdude2000]

Hi mate did what you said still the same also no brake light any information cheers dale

Ok, if you have the correct connector and the jumper didn’t fix it, that means the ground wire has broken between G1 under the gas tank and the connector. Double check the pin count on that connector. If it’s the 14 pin, then you will have to either pull the gas tank and run a new wire to G1 from the connector or leave the gas tank in place and run a new wire from the connector over to the right side of the rear engine mount and attach it to the grounding plate where the battery is grounded. This is at the area where the reverse actuator cables are attached to the reverse mechanism. Before doing either, try a temporary jumper from your new jumper to the battery negative post and test the lights again.

[Daleboy]

Hi have you got a picture and what panels do I need to take off to get to the grounding plate cheers dale ps when I put the brakes on there's a clicking sound coming out of the relay box

[Techdude2000]

Hi have you got a picture and what panels do I need to take off to get to the grounding plate cheers dale ps when I put the brakes on there's a clicking sound coming out of the relay box

Pull the right side engine cover off, it’s the one above the driver foot peg. The plate will be at the top left/rear of the opening. You will see the large battery ground cable bolted to it. The clicking should be the brake light relay. Make sure your battery is fully charged, it doesn’t take long to drain it with the key on and the engine not running.

[Daleboy]

Hi I have done what you said ran wire from bike earth connected it to jumper wire still the same is there anywhere else I can try cheers dale

[Techdude2000]

Hi I have done what you said ran wire from bike earth connected it to jumper wire still the same is there anywhere else I can try cheers dale

Ok, so did the new ground fix the indicators or change their brightness? Do you have any extra wiring connected to the rear or front turn signals? Look at my earlier picture and find the little box in the picture labeled turn signal diode. Unplug it and try the turn signals again.

[Daleboy]

Hi indicators the same ran wire from frame to jumper wire just unplugged diode still the same mate

[Daleboy]

Is there anything in the front of the bike it could be cheers

[Techdude2000]

Is there anything in the front of the bike it could be cheers

Ok, does it have any trailer wiring?

[Daleboy]

Hi no it doesn't anymore help

[Techdude2000]

Hi no it doesn't anymore help

Ok, I’m officially stumped. The wiring passes through connectors under the right side fairing pocket, in the white frame up front. A short in there could tie both sides together. I’ve never seen the turn signal switch cause anything like this.

[Daleboy]

I just borrowed a volt meter I'm going to check all the earth wires behind the relay panel so I get back to you later I tested all the earth wires behind relay box there all working

[Daleboy]

Hi got working indicators now must of been loose wire at front of bike still no brake light

[North Western]

Morning Daleboy

I recently had extremely bizarre behaviour with brake lights / tail lights and indicators.
It came down to bad earth wire in the grey 14 pin connector as indicated by Techdude2000, AND ....the connectors to the lamp holders in the rear light clusters were all giving poor connections and high resistance.
Separating the contacts and using contact cleaner, then reconnecting and disconnecting a few times to make good connections worked.

Good luck
Don

[Daleboy]

Morning Don the problem is in the front of bike I managed to get the indicators working then put the front back on and indicators went back to both flashing when I indicated left or right I was wondering if I ran a new earth to the indicators would that sort the problem thanks dale

[North Western]

Morning again Dale

It wouldn't hurt to run a temporary earth to see if it fixes the problem.
My problem was high resistance and bad earths on the rear light clusters and that impacted the front indicators as well.

Good luck with it

Don