Flashing cruise light

[gv550]

Another 2 days of riding, rain and miserably cold here in Ontario, but I did get 700 kms in and the cruise worked perfectly and no fault code. I'm confident the new front brake switch assembly has fixed my flashing cruise light problem.
My Super Tenere is now tucked away and in storage until April, Kawasaki is loaded and we're headed to Florida in the morning, for 5 months. I will enjoy the winter knowing S10 is fixed and ready to ride when we get home in the spring.
For anyone else experiencing a flashing amber cruise light, and cruise won't set, I recommend the first thing to do would be check for fault codes. If code 90 is stored ( brake switch failure) I'd say the odds are good that you really do need a new brake switch. In my case it was the front brake light switch that failed but the same code would be set if the rear switch had high resistance.
A couple things add confusion to this failure and its resolution, it was the cruise control that failed and set a fault code but there was nothing wrong with any of the switches involved with the cruise, a failed light switch was the culprit. And the light switches operate opposite to normal, they are both normally closed and hold a relay powered whenever the key is on. Activating either brake opens the switch to release the relay which then turns on the brake light. The onboard diagnostics has procedures to check every switch on the bike, and all the cruise and brake light switches passed the tests, even though one light switch had too much resistance to perform properly.
Thanks to Mebgardner and Crew Chief and others for the help and suggestions, this place rocks! ::015::

 

[bob dirt]

Glad yours is fixed. I've been following all the cruise control problems here. It's a good way to learn.

 

[mebgardner]

Another 2 days of riding, rain and miserably cold here in Ontario, but I did get 700 kms in and the cruise worked perfectly and no fault code. I'm confident the new front brake switch assembly has fixed my flashing cruise light problem.
My Super Tenere is now tucked away and in storage until April, Kawasaki is loaded and we're headed to Florida in the morning, for 5 months. I will enjoy the winter knowing S10 is fixed and ready to ride when we get home in the spring.
For anyone else experiencing a flashing amber cruise light, and cruise won't set, I recommend the first thing to do would be check for fault codes. If code 90 is stored ( brake switch failure) I'd say the odds are good that you really do need a new brake switch. In my case it was the front brake light switch that failed but the same code would be set if the rear switch had high resistance.
A couple things add confusion to this failure and its resolution, it was the cruise control that failed and set a fault code but there was nothing wrong with any of the switches involved with the cruise, a failed light switch was the culprit. And the light switches operate opposite to normal, they are both normally closed and hold a relay powered whenever the key is on. Activating either brake opens the switch to release the relay which then turns on the brake light. The onboard diagnostics has procedures to check every switch on the bike, and all the cruise and brake light switches passed the tests, even though one light switch had too much resistance to perform properly.
Thanks to Mebgardner and Crew Chief and others for the help and suggestions, this place rocks! ::015::

::012::

 

[Crew Chief]

I'm glad we're seeing some success. Enjoy your winter.

 

[Joseph Shaw]

And the light switches operate opposite to normal, they are both normally closed and hold a relay powered whenever the key is on. Activating either brake opens the switch to release the relay which then turns on the brake light. The onboard diagnostics has procedures to check every switch on the bike, and all the cruise and brake light switches passed the tests, even though one light switch had too much resistance to perform properly.
::015::

Do you know if there are written instructions on testing the resistance of these switches? I am having this exact issue on my 2019 ES and can cause the blinking light with either front or rear brake. I have also noticed that my brake light sticks on when this occurs. Thanks!

 

[gv550]

No instruction from Yamaha, only what others and myself learned when diagnosing 3-4 bikes with failed cruise. In my case the front brake light switch had 9 ohms resistance when closed and the new switch had zero resistance, and this fixed my problem. I've logged over 100k since then and cruise is still working fine.
If your brake light is staying on (mine wasn't) the first thing to check is the adjustment of the rear brake switch.

 

[Joseph Shaw]

No instruction from Yamaha, only what others and myself learned when diagnosing 3-4 bikes with failed cruise. In my case the front brake light switch had 9 ohms resistance when closed and the new switch had zero resistance, and this fixed my problem. I've logged over 100k since then and cruise is still working fine.
If your brake light is staying on (mine wasn't) the first thing to check is the adjustment of the rear brake switch.

Thanks! I will check that out........could it also be the adjustment of the front brake switch....it seemed to do it with either brake. I was testing it on the center stand in my garage.

 

[gv550]

There is no way to adjust the front switch. You should be able to hear two clicks when slowly pulling and releasing the front brake lever. The front switches are encapsulated into one housing, and not serviceable, have to buy the complete unit with harness.

 

[gv550]

Another thing to check is that your rear brake pedal returns all the way up. The pivot bolt needs to be cleaned and lubed regularity, and while you are at it do the shifter lever as well.

 

[Kruzzin5]

Another thing to check is that your rear brake pedal returns all the way up. The pivot bolt needs to be cleaned and lubed regularity, and while you are at it do the shifter lever as well.

Just finished reading this thread. Excellent diagnostics on your part! This will help so many in the future.

 

[elricfate]

Another thing to check is that your rear brake pedal returns all the way up. The pivot bolt needs to be cleaned and lubed regularity, and while you are at it do the shifter lever as well.

Oh good call. I just had a random CC flashing issue and turning it off and back on again resolved it. But I use my rear brake a LOT more than my front brake (linked or not) - I bet the pivot is dry.