07 ST 1300 Wiring issue

MysterYus

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Sep 25, 2021
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16
Location
ASIA
Hi, i was cleaning up the places under the headlight cowl (Front cowl), and i saw this 2 wire that are not connected to anything. A18A49BD-9E5B-4A80-9C55-A6B9050EB9D1.jpeg

Stupid me, touched the two wires while the ignition is on and i heard a “pop” sound. now the bike doesnt crank :(

The speedo seems to be affectes, When i turn on the ignition, there are no fi light etc. the whole cluster doesnt work.

Only the clock is shown, light etc are working.

How do i go about fixing this?

Thanks in advance.
 

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What colour are the wires. If they are not an accessory that was added to the bike, they could be the wires for the ambient air temperature sensor depending on the colours. It is on the same circuit as the instrument cluster.

I would assume that the pop sound was from a fuse blowing, probably the accessory fuse. Check the fuses to find out which one blew, that will also tell you what circuit the wires are in.
 
I'm not sure what those two wires would be for without looking closer.

Luckily this happened when you were cleaning and not while out driving!
 
Andrew Shadow said:
I would assume that the pop sound was from a fuse blowing, probably the accessory fuse. Check the fuses to find out which one blew, that will also tell you what circuit the wires are in.
Click to expand...

100% agree. That's the best place to start.
Be sure to isolate the ends before replacing the fuse so you don't accidentally pop the same fuse again.
 
Andrew Shadow said:
What colour are the wires. If they are not an accessory that was added to the bike, they could be the wires for the ambient air temperature sensor depending on the colours. It is on the same circuit as the instrument cluster.

I would assume that the pop sound was from a fuse blowing, probably the accessory fuse. Check the fuses to find out which one blew, that will also tell you what circuit the wires are in.
Click to expand...

I dont think it belongs to an accessory as there are no accessories attached to the bike except for fog light (which is working fine).

What i observed now is that there seems to be no electrical power to the windshield adjustor. No sound when pressed up and down as well as the speedometer panel (except for having of orange backlight and clock).The cluster of light (fi light,abs light etc) also have no lights at all when ignition on. Other electrical components such as brake light, fog light, signal light is fine.

For the fuses, where are they located? i can only see the one under my seat.

Obo said:
I'm not sure what those two wires would be for without looking closer.

Luckily this happened when you were cleaning and not while out driving!
Click to expand...

The wires are black. the tip of it is gold in colour. 2 metal prog(?) shaped like thing. the tip has metal feel to it. They are short too.

Damn. all i wanted was to clean my bike but seems like that gotta wait :(
 
Both wires being black, and having power (thus popping a fuse somewhere) leads me to believe they are not part of the OEM wiring.
OEM wiring should be colored and in some sort of connector.
 
Is that the belly pan in grey and the gap in fairing (white) where the tip-over bar cover is located ?

I don't think there are a pair of wires that end up in that neck of the woods. There are a couple of sensors, but they tend to be single wires and use the engine for earth.

My guess is that a previous owner has fitted riding lights or a super loud horn down there and has taken them off before selling, leaving the connecting wires dangling.

Fuse box is behind the side panel on the left hand side of the bike. There are two of them.
One of the fues boxes has a smaller one piggy backed to it across the top - like this one from an A9 model.
Top of the picture the black strip - it has a liftable cover on it and is almost impossible to see. Mine has a spare and a 'live' fuse.

Turn off ignition. Take each fuse out one at a time, inspect, replace (if it is not blown).


ST1300A9 Fuse Box Front.jpg
 
jfheath said:
Is that the belly pan in grey and the gap in fairing (white) where the tip-over bar cover is located ?

I don't think there are a pair of wires that end up in that neck of the woods. There are a couple of sensors, but they tend to be single wires and use the engine for earth.

My guess is that a previous owner has fitted riding lights or a super loud horn down there and has taken them off before selling, leaving the connecting wires dangling.

Fuse box is behind the side panel on the left hand side of the bike. There are two of them.
One of the fues boxes has a smaller one piggy backed to it across the top - like this one from an A9 model.
Top of the picture the black strip - it has a liftable cover on it and is almost impossible to see. Mine has a spare and a 'live' fuse.

Turn off ignition. Take each fuse out one at a time, inspect, replace (if it is not blown).


ST1300A9 Fuse Box Front.jpg
Click to expand...
The wire is located at the front. Have to take out the windshield covers to see it. It was at first left dangling on it own. Due to my lack of knowledge, I thought that was meant to connect to something but eventually upon touching it, pop sound was heard.

Ill take a look at the fuse box. I dont have a fuse in hand, by default, are there spare fuse already in the box?
 
Phewwwww. yall are right, it is indeed blowned fuse. not one, but 2!

Seems like the meter and the FI/fuel fuses were blown.

Luckily, there are spare available on the bike. Changed it and YES! its running again.

However, my windshield buttons doesnt seem to do anything to the windshield. what should i look for now. its now all the way up and damn, i need dem winds.
 
There is a windshield down travel limit switch mounted on the bottom of the right hand windshield rail. It is connected with two black wires. Not sure if it has spade connectors or is hard wired.
 
decided to change all the fuses in hopes it could revive my windshield adjustor but to no avail. The button just does not work.

Its as if there is no electrical connection.

Paul said:
There is a windshield down travel limit switch mounted on the bottom of the right hand windshield rail. It is connected with two black wires. Not sure if it has spade connectors or is hard wired.
Click to expand...

Whereas for the wire, i did snoop around of available videos and wires for the windshield, everything thats there should be there.

The “extra” wire the one i have is a bundled wire thats splits into 2 metal tip which i dont know the purpose of it. what i know is that its somehow connected on the other end which resulted in blowing the FI and Meter fuse (initial issue)
 
Tape each of the two wires separately, not together; either one could be hot relative to the bike's frame, too.
 
Before going after the windshield and motor parts, I might disassemble the Grey thumb button which raises and lowestory. Maybe wires or switch is corroded? Clean and lube?
Look for the Articles for this, there are likely a couple little parts that want to spring out and escape from their lifetime of captivity.
Don't let them.
But, wait... was the windshield raising and lowering BEFORE the fuses died?
There may be more to the story.
 
Sadlsor said:
Before going after the windshield and motor parts, I might disassemble the Grey thumb button which raises and lowestory. Maybe wires or switch is corroded? Clean and lube?
Look for the Articles for this, there are likely a couple little parts that want to spring out and escape from their lifetime of captivity.
Don't let them.
But, wait... was the windshield raising and lowering BEFORE the fuses died?
There may be more to the story.
Click to expand...

Ill check out on the switch on the left side on the handle bar.

The windshield is working the day before. i rarely used it though so most of the time its at its fixed position (lowest). just that the day before, i left it all the way up in prep to wash my bike the day after. Never played with the button anymore after.

Hence im not sure if the failure occurred before or after the blow. i only noticed it after the fuse blow when checking for other electricals that was affected.
 
There are two big multi pin connectors behind the headlight, one is a 23 pin connector, (left side, I think) and the other is a 12 pin (right side). Check for signs of overheating and/or corrosion. You might have opened up a bad connection to ground poking around on the bike. This is a frequent problem area.
 
Paul said:
There is a windshield down travel limit switch mounted on the bottom of the right hand windshield rail. It is connected with two black wires. Not sure if it has spade connectors or is hard wired.
Click to expand...

As Paul has said, the two windshield limit switches each utilize a Black conductor as well as a Red Conductor. All four conductors terminate in a 4-pole connector at one end, and the limit switches at the other end. Both limit switches reside beneath the front cowling, on the throttle side (if memory serves).

Here's a link to the windshield circuit diagram, as well as a link to the wiring diagram for the Honda ST1300. Both of these diagrams can be downloaded...
Windscreen Circuit PDF
Wiring Schematic Non-ABS PDF
 
ill attempt to "debug" the circuit using the diagram @Anna'sDad . Thanks for the info :)

Here is a lil summary of the background and my current observation:
  1. Bike was not used for 10 days.
  2. After 10 days, HISS light wasn't blinking but cranked fine. No issues here. Did ride around for a good 1 hour or so. Everything seems fine. No issues observed.
  3. Parked the bike (windshield up). For the next day as mentioned.
  4. The next day, cleaned the bike, touched a wire, Fuse blown.
    1. Speedo doesn't work and FI doesn't pump fuel. Change the fuse (2 fuses), works fine again.​
  5. The next day, opened up the inner cowl, lubed up the rails.
    1. Waited +-30min, wanted to give it a try so i started the engine, bike doesn't crank.​
  6. The bike speedo is empty - Black panel and light flickers (telltale of dead battery).
    1. Jump started it, it works fine after BUT below is new issues i found:​
  7. Current observations:
    1. Kill switch cluster issue.
      1. When bike is on, i cannot kill the bike using the kill switch. (buzzing sound is heard from the battery area).
      2. With ignition on and kill switch off, the bike doesn't start - working as intended; turn it on and it can crank. Weird!
      3. Personal conclusion? Not switch issue. Seems like circuitry issue
    2. Left cluster issue.
      1. Accessory controlled from this switch is working (Signal lights etc.).
      2. Indicator light on my fog light switch doesn't have the light anymore. Fog light is working though.
      3. Windscreen button still not responding (as if no electric power)
Some part of me is saying that there is lack of "electric current" running on my bike which results in certain mechanism to not work due to lack of power. The voltage when ignition on (without cranking) lies around 11.3v. When running its running around 12.3v (higher when i throttle the bike).

Update: front brake (when pressed) does not trigger the brake light too.

I rechecked all the fuse and they are not blown. What trickle my mind is why is the kill switch button not working (it just cuts off the connection to the ignition right? without voltage, it should kill the bike ignition).

Ill check the basics first before going deeper. Anything i should be looking for? Could it be grounding issue?
 
Last edited:
My observation is your battery voltage is around 1.5vDC low.
Bad battery?
That's one theory, but electrics is not my strong suit.
Using up petrol is my skill.
And reading.
 
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