Cruise control

[boman]

Thanks again for all help. Most appreciated.
Now I have done the above tests.
Up to step 81 everything works as expected.
Step 82 gives ON all the time when testing for front and rear brake, clutch lever and throttle.
Step 83 gives OFF and then ON when pressing either front or rear break lever (works as expected).

Am I correct that this means that either the trottle or clutch lever. Is there a way to test those individually?

 

[gv550]

OK. The diagnostics can isolate any circuit if it fails to ON, but not if they fail to OFF.
So you need to inspect and test each circuit manually, I'd start with the throttle switch.
The switch has two wires, coloured light green with blue tracer, and yellow with white tracer, and will end in a quick connector joining with the main harness, likely under the upper right body panel. I haven't needed to service this myself so I'm not sure where it is.
Unplug the connector and use an ohmmeter or test light at the terminals and watch for the circuit to open and close while rotating the throttle backward.
If the switch or wire was damaged when the bike was serviced, this should be visible by lifting the fuel tank and following the wire to the switch located at the bottom of the throttle body.

 

[richarddacat]

I would bet on the clutch switch.

 

[gv550]

It may well be the clutch switch, I suggested starting with the throttle switch only because the throttle body would have been removed at the 40k service (if in fact the valve clearance was checked). The tech would have no reason to tamper with the clutch and brake switches.
Boman, just a reminder that even tho the brake switches passed test 83 does not eliminate them as suspect. There are 2 switches inside each brake switch housing and 83 tests only one of them. The cruise cancel switch (in both housings) activates before the light switch so it is important to make sure the rear switch is properly adjusted.

 

[MIMSEY]

On my 2014 Vstrom I had a faulty clutch switch too, out in the middle of no where, Vstrom wont start with out it loll.

 

[boman]

OK. The diagnostics can isolate any circuit if it fails to ON, but not if they fail to OFF.
So you need to inspect and test each circuit manually, I'd start with the throttle switch.
The switch has two wires, coloured light green with blue tracer, and yellow with white tracer, and will end in a quick connector joining with the main harness, likely under the upper right body panel. I haven't needed to service this myself so I'm not sure where it is.
Unplug the connector and use an ohmmeter or test light at the terminals and watch for the circuit to open and close while rotating the throttle backward.
If the switch or wire was damaged when the bike was serviced, this should be visible by lifting the fuel tank and following the wire to the switch located at the bottom of the throttle body.

Hi again. I will leave my S-10 to the repair shop on tuesday this week together with the information about how to check the throttle function as described above. I will report back how things are going....

 

[gv550]

If the throttle switch checks out OK, then the clutch wires are solid brown and yellow with black tracer.
The front brake wires are yellow with black tracer and yellow with white tracer.

 

[boman]

I spoke to the repair shop this afternoon. They couldn't find where the throttle switch cable ends up in the harness. Is there anyone in this group that knows?

 

[Jeff Milleman]

looks like 2 go to the ECU and 2 go to the joint coupler... The ecu are white/orange ..

 

[gv550]

Boman, it's been a month. Do you have an update on your cruise control issue? Curious minds like to know.

 

[boman]

Hi. Unfortunatelly the problem isn't solved yet. The bike has been in the repair shop for a period but they are not able to fix it. Yesterday I called the Yamaha dealer (unfortunatelly the shop is quite a distance from where I live) and asked for a time at their repair shop. They where very busy but I can probably get a time later on. The problem is that I have to take vacation from my work to get there. Keep you informed.

 

[Squibb]

Wow - those guys need the proverbial rocket. IIRC, they created the issue after a 40k service.

It shouldn't be difficult to check all the areas involved. ABS sensors & wiring/brake light switches F&R/rear brake pedal adjustment/throttle roll off switch/clutch switch.

It may just be the dual switching aspect that Yamaha uses that fools the unwary investigator. Taking say the brake light switches, the dual action means there are 2 circuits involved, one talking to the brake light, one to the CC. So seeing the switch working the brake light does not mean the switch is good to signal the CC. GV550 covers the throttle switch, which seems the strongest candidate at 40k - it needn't be electronic; even maladjustment of the cables could cause the roll-off switch to stop your CC. This should all be bread & butter stuff to any experienced Yamaha tech as similar systems are used across several models. They also have access to tech support from HQ.

 

[silverthunder]

Goodmorning everyone! I have a similar but different problem. the bike has covered about 40k kilometers, I have to do the planned service shortly here. every now and then if I try to activate the cruise control the yellow light flashes and if I try to set the speed it doesn't. just turn it off and on again and everything's okay. any suggestions?

 

[joebenslc]

Goodmorning everyone! I have a similar but different problem. the bike has covered about 40k kilometers, I have to do the planned service shortly here. every now and then if I try to activate the cruise control the yellow light flashes and if I try to set the speed it doesn't. just turn it off and on again and everything's okay. any suggestions?

I had the same problem on my 16. It would just flash when I activated the cruise control. Sometimes stopping, turning off the bike and restarting it would fix it. I removed the front speed sensor and cleaned it with brake cleaner and haven' t had the issue any more.

 

[silverthunder]

Thanx a lot, I’ll try it


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[gv550]

Goodmorning everyone! I have a similar but different problem. the bike has covered about 40k kilometers, I have to do the planned service shortly here. every now and then if I try to activate the cruise control the yellow light flashes and if I try to set the speed it doesn't. just turn it off and on again and everything's okay. any suggestions?

What year is your bike?
Have you checked for stored error codes?

 

[silverthunder]

2015.
No, I didn’t
Thanx for your suggestion. I’ll do it

 

[silverthunder]

Now I did. Could you explain?

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[gv550]

Step 9 is fuel system voltage, anything over 12.0 is normal.
Step 61 is the stored fault code(s), you have none.
Does your Check Engine light sometimes come on?
Check the throttle bodies are balanced, and look for a cracked hose or loose fitting on the left throttle body hose going to the intake air pressure sensor. A vacuum leak here will result in the cruise light flashing.

 

[silverthunder]

Thanx. Never came on Engine Light. Next 40k km service I’ll ask to check hose