R3 cruise control

You May have an earth problem either in your Cruise Control (most likely) or your connection from the brake circuit is not correct. Have you converted your lights to LED?
Had Your Battery out recently?
Upset any Wiring?
You say you have great vacuum, but if the diaphragm inside the cruise control system has a hole in it (From age and usage) it will not hold speed, when speed diminishes past the set tolerance the cruise control will disengage.

Check your earth connection first, follow the cable to the cruise control unit to ensure all is good. Do the same check on your positive connection too - put a new fuse in it (even if it hasn't blown (Eliminates Possibilities).

Instruction Manual Below.

View attachment CCS100_IM.pdf

Thanks mittzy

Thanks for the help. I checked the ground early on, it didn't appear to be tight, but after tightening still had the same problem. Also pulled the fuse, it looked good so I just put it back in. My servo unit looks new both inside and out, I don't think dirt, dust, water, could be an issue. Like I said red light in the servo and green light on dash switch but it doesn't engage. The unit shouldn't completely turn off when I hit the brake light so in must be a earth/ground issue or in the brake light connection????? I'm just guessing, I don't have test equipment or know how to test. Thanks Mittzy

i don't know about the cruise you are talking about so i don't know if this info will help. any way if the control is tied into the speedo you may be losing vehicle speed info. you might want to buy a vacuum checker to check vacuum source,tanks and you should be able to activate the throttle.
herman

HELBOY said:

Thanks for the help. I checked the ground early on, it didn't appear to be tight, but after tightening still had the same problem. Also pulled the fuse, it looked good so I just put it back in. My servo unit looks new both inside and out, I don't think dirt, dust, water, could be an issue. Like I said red light in the servo and green light on dash switch but it doesn't engage. The unit shouldn't completely turn off when I hit the brake light so in must be a earth/ground issue or in the brake light connection????? I'm just guessing, I don't have test equipment or know how to test. Thanks Mittzy

Click to expand...

Ok, take your vacuum hose off from the engine end. suck (with your mouth) until it is really hard to suck anymore, them put your tongue over the end of the tube - should hold the vacuum, if it doesn't you may have a diaphragm problem. I don't know if there is a diagnosis mode on that model.

The diagnostic LED

There is an LED inside the main CCS-100 unit housing next to the set of jumpers. (On my unit the LED is red.) It has two key diagnostic features.

First, you can use it to tell if your buttons are working - that is, the On, Off, Set, and Resume buttons on the control pad. Once you turn on your bike and press the "On" button on the cruise control switch pad, the main unit is energized. Now press the Set button and watch the LED inside the main unit. If it turns on and then off, your Set button is working. Do the same for the Resume button. Then press the Off button and try the others - they should not cause the LED to light, because the whole unit is now off.

Second - and this is the big one - you can tell if your signal from the ignition coil / tachometer tap is working. Start the bike, press the "On" button to enable cruise, and watch the LED. It should be flashing on and off at a steady pace - about once a second or so. If it's not on at all (when not pressing any control pad buttons) then your engine-speed pickup isn't working. The LED should flash at a rate proportional to the engine speed: rev the engine and you'll see the light blink faster. If it does, you have a good connection to your tach, coil, or whatever you're using for the engine speed.

You could try and disconnect the wire that picks up the brake light signal (This will confirm or dismiss the brake connection. If taking it for a ride to test (not recommended) make sure you can shut her down with the kill switch just in case it goes full throttle (be in top gear).
Short of being in front of it to check things myself- it is hard to diagnose these problems.
Again to me it sounds like a faulty control panel (Not designed to be in the weather) or a bad connection.

Thanks I give it a try. Helboy

Helboy cruise control

That was very helpful. Plenty of vacuum, can't be the issue. The LED performs every function you suggested including the increased blinking when throttle advanced. This Audiovox ccs-100 passes all tests. Except it does not engage and , when brake is applied the dash switch indicates it has turned itself off. I tried just cutting the purple wire to the brake light but the unit would not function, nothing, no dash green light, no red LED. Must be something in the tail light wiring???? I installed this cruise control almost 5 years ago and it works great. Used this cruise control every time I rode. When I rode for the first time this Spring it failed to function..... ??????? Thanks for the help.

Cruise problem ccs-100

I'm giving up. perhaps I should just buy a new unit and install it.. Should I try to replace it the same vacuum unit Audiovox ccs-100 or am I able to use a true electronic cruis on my R3??? Any suggestions???

Watcher bought a cruise control from some company in OZ for his R3T.

Thanks. You have cruise on your bike? The ccs-100 vacuum unit worked great for four years so if I could find one that would be ok. Is there difficultly with the electronic install?? If the electronic is easy I might put one on my HD.

Cruise control

I have been thinking about getting one for a while now.
If I do get one it will be electronic.
Rostra 250-1223 Universal Cruise Control System