Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: paul G on August 06, 2013, 12:50:55 PM

Title: CB550 K31977 WIRING
Post by: paul G on August 06, 2013, 12:50:55 PM
Hi,
          Just managed to get the power back to the project and started sorting the wiring out.
Quick question when I turn the ignition on, the front parking light and the rear light come ON is this normal on the model and year !!

Regards,
Title: Re: CB550 K31977 WIRING
Post by: Bryanj on August 06, 2013, 01:14:48 PM
not unless the light switch is on or you have turned the key and extra click in which case the lights come on to park with ignition off
Title: Re: CB550 K31977 WIRING
Post by: paul G on August 06, 2013, 05:36:16 PM
It comes on as soon as the ignition is turned on irrespective of the light switch being ON.

thanks
Title: Re: CB550 K31977 WIRING
Post by: busa on August 06, 2013, 05:43:25 PM
Is the wiring for park light.  brown!!!!!!!!  also is the ignition 5 pin plug or loose wires
Title: Re: CB550 K31977 WIRING
Post by: Bryanj on August 06, 2013, 08:07:31 PM
If it comes on with the ignition you need to test the ignition switch electrical with reference to wiring diagram, or you have wires connected wrong in headlamp shell/ connector box
Title: Re: CB550 K31977 WIRING
Post by: paul G on August 07, 2013, 10:56:48 PM
Busa
 the wire is brown and the wiring is on a plug the switch does have a steering lock position.
Not sure if this is the right one
Title: Re: CB550 K31977 WIRING
Post by: busa on August 07, 2013, 11:19:23 PM
there should be a brown wire on the back of headlight.  on the park light    that goes into a single brown wire that comes into headlight bucket from the main loom.

brown  wire  is park light

brown/blue  is indicator buzzer  if you have one

brown/white  is  clock lights

all these are ones that are from the main loom  for headlight bucket  and idiot lights etc
Title: Re: CB550 K31977 WIRING
Post by: paul G on August 08, 2013, 08:29:00 AM
Busa,

             That is what I have got. but as soon as the ignition is switched on the lights come on.
Title: Re: CB550 K31977 WIRING
Post by: tom400f on August 08, 2013, 08:31:57 AM
Random thought - is your wiring a spec for one of those countries where it's mandatory for your lights to be on, you know, some scandinavian place or the like?
Title: Re: CB550 K31977 WIRING
Post by: LesterPiglet on August 08, 2013, 11:34:10 AM
Diagrams are all the same, we just don't use some connections in the UK.
Is this a replacement ignition switch by any chance?
Title: Re: CB550 K31977 WIRING
Post by: paul G on August 08, 2013, 12:23:13 PM
The ignition switch has a steering lock on it as well.
I think I am going to try the switch from my 400 4 and see if the problem still persists.

Regards,
Title: Re: CB550 K31977 WIRING
Post by: busa on August 08, 2013, 06:31:14 PM
my ignition is a replacement  from Silvers  with steering lock on it  and it works fine.  my wiring harness and all electrics  are from Canada.   the wiring is still the same    except they use running lights on the indicators  ( they stay lit)   everything else is the same.

mind you this was the second switch from silvers   the first one was faulty.
Title: Re: CB550 K31977 WIRING
Post by: paul G on August 09, 2013, 08:18:14 AM
It seems as though I have acquired a US spec wiring loom (**** EbaY)
The US one has running lights ON as soon as the ignition is turned on, front running light, rear light and all clock lights are ON.
Can this be changed to the UK spec !!!
Going to try and find a US wiring diagram and compare them.
Any help appreciated.

Regards,
Title: Re: CB550 K31977 WIRING
Post by: Bryanj on August 09, 2013, 09:55:08 AM
Paul, the loom is the same it's the switches that are different. You need to use a multimeter on the ignition and r/h switches to check out what is happening. When I get home on the 19th I will look at all my wiring diagrams and see if I can find the appropriate one(s) for you
Title: Re: CB550 K31977 WIRING
Post by: paul G on August 09, 2013, 01:18:31 PM
Thanks
Title: Re: CB550 K31977 WIRING
Post by: mickwinf on August 09, 2013, 05:16:22 PM
I am pretty sure if you fit uk handlebar switches it will sort it as the us version don't have an off position.
Title: Re: CB550 K31977 WIRING
Post by: busa on August 09, 2013, 11:32:45 PM
Paul.

the wires for running lights  in headlight bucket  are orange/white  and blue/white   just disconnect from indicators.   that should just leave  orange  one   and blue one    one is the left  the other is the right.  cant remember  which is which  also  there is no off switch for headlight on the bars.  just hi/low.   for MOT  purpose  don't make any difference.   just that we don't have indicators lit   only flash.
Title: Re: CB550 K31977 WIRING
Post by: paul G on August 15, 2013, 10:08:58 PM
I have found the culprit. In the headlamp bucket there is a brown/blue wire this is connected to the black 12v supply. This needs disconnecting and connecting to the feed from the switch. Thanks for your help everyone.