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Offline Phil

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Delay in headlights turning off.
« on: June 08, 2018, 09:43:33 AM »
I have notice lately that when I turn the engine off, using the ignition key, the headlights stay on for between 6 and 15 seconds.   They eventually turn off at the same time the the screen returns to its neutral position.  I am not particularly bother by this as there doesn't seem to be any adverse effect on the battery and the bike starts first time every time.  But why has it started to happen and will it lead to further problems.   The guys in the shop all scratched their heads in wonderment with no answer.   I am having an basic annual service on 12th but I would love to give the service guys a hint as to what might cause the lights to stay on.   Any ideas. 

I'm off to France for a couple of weeks on 19th and I don't want any issues while I'm away. 

Phil

Offline Coconut

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Re: Delay in headlights turning off.
« Reply #1 on: June 08, 2018, 06:57:44 PM »
Hi Phil,

I've checked my own Bike, and my Headlight switches OFF as soon as the key is turned OFF.

I've just been having a look at the Wiring Diagram to see if I can figure out what is going on  :084:

Power to the Headlights is from the Ignition Switch - White wire with a Blue stripe
to a Multi-Pin connector ( the one under the left Speaker by the looks of it )
where it changes to a Red wire with a Blue stripe.

The Red wire with Blue stripe is connected to one side of the Headlamp Relay Coil.
( The other side of the coil goes to the ECU ).

The Relay Contact wires are coloured Purple for the Input from Fuse No.1 ( Rear Fusebox )
and Blue for the Output to the Headlamp Switch.

When the Ignition is switched ON, the Relay Coil should energise and "make" the Relay Contacts,
which in turn should switch either Main or Dipped Beam ON, depending on the Headlamp Switch Position.

When the Ignition is switched OFF, power to the Relay should be cut,
and the Headlamps should switch OFF straight away.

So, Where is the Power coming from to keep the Headlamps ON when the Ignition is first turned OFF ?

A possibility is broken wiring within the base of the Ignition switch - which has been seen before,
and that one of the other Powered wires is shorting across to it.

The other wires at the Ignition Switch are :

Brown, changing to White with a Blue stripe at the same Multi-Pin connector mentioned above,
which is powered by Fuse No.5 of the Rear Fuse Box ( Ignition & Instruments ).

White with a Blue stripe, changing to Orange at the Multi-Pin connector,
which is powered by Fuse No.6 of the Rear Fuse Box ( Tail Light, Brake Light & Horn ).

White with a Green stripe, changing to Orange with a Green stripe,
which feeds the front & rear "position ( Side ) lights, Rear Brake Light Relay & Switch, and Horn switch.

Yellow, changing to Green at the Multi-Pin connector, which is part of the Immobiliser circuit.

WHAT TO DO !  :

Confirm the Headlights work by starting the engine !

Switch off and take out the Headlight Fuse - Rear Fusebox, Fuse No.1
Turn the Ignition ON and start the engine again.

See if the Headlights are ON - if they are then there is definitely a short circuit somewhere -
and probably at the base of the Ignition switch.

At this point you could try moving the handlebars from side to side,
which moves the wiring harness slightly, to see if the Headlights flicker on / off etc -
If they do it is another sure sign of a wiring fault in the base of the Ignition switch.

You can also try gently moving / flexing the wiring loom to see if it has any effect.

It's difficult to see where the wires exit the Ignition switch,
but this Topic has some more information and Photographs : "Stalling"


You could find out which wire is Shorting to it by leaving the Headlight Fuse out,
and pulling the other Fuses mentioned above in turn, until the Headlight goes out.

If a Short circuit is identified, then either a new Ignition Switch is needed,
depending on your Warranty status and / or Goodwill from Triumph, or a repair to the Wiring.

Here's a Topic on repairing the wiring :  Ignition Switch DIY Repair

If there is NO short circuit identified then I will join the guys in your local bike shop -
scratching my head too !

Let me know if I can help further  :169:

Cheers  :821:



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Offline jaapvanthoff

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Re: Delay in headlights turning off.
« Reply #2 on: June 08, 2018, 08:06:50 PM »
Gents, I just checked my head light behaviour for you.
I have bought the bike new, zo nobody has done some changes:

If the engine runs and I use the red nob on my right handlebar, it takes 5 s to turn of the head leads.
If the engine turns and I use my key, there is no delay in “getting black light”

This is from day one.
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ex: BMW R1200RT :-))
Some Saabs, Daimler serie 3

Offline Coconut

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Re: Delay in headlights turning off.
« Reply #3 on: June 08, 2018, 08:14:30 PM »
jaapvanthoff,

Thanks for trying to help - Yes - My Trophy does exactly the same  :028:

The probem that Phil has, is that his Headlights do NOT switch OFF immediately
when the Ignition Switch is turned OFF - and it seems that they should do !


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Online earthman

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Re: Delay in headlights turning off.
« Reply #4 on: June 08, 2018, 08:56:50 PM »
Didn't another member experience this problem, well the lights just didn't switch off period if I remember rightly? I'm thinking that it were the relay that were at fault??

Offline Coconut

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Re: Delay in headlights turning off.
« Reply #5 on: June 08, 2018, 09:07:39 PM »
A good point - I wanted to eliminate the possibility of a Wiring fault at the Ignition switch,
as that is the worse case scenario - especially with a planned trip coming up !  :159:

It "could" just be the Relay sticking, which would be an easy fix, but I suspect not,
as Phil reports the Lights go out at the same time as the Screen Powers down etc,
which would probably co-incide withe ECU connection to the Negative side of the Relay
switching off, de-energising it and breaking the Contacts. 

I'm sure we'lll know more when Phil reports back  :084:   :028:






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