Cruise Control Not Working

[dingy]

87 venture royale. Cruise shows no error codes when powered on. Get a green lite after self test but will not set. Have checked the usual suspects but found nothing amiss. Actuater holds vaccum and vaccum motor spins freely. Checked the control unit plugs as shown in manuel but get no power sweep when moving the set/decel switch. Manuel states the control unit is bad if this happens. Any ideas? If unit is indeed bad is there a way to repair it or get another one somewhere? I also just started getting an E4 code on CLASS today. Any help on either of these problems would be great.

 

Do you have the 4 light cluster for the cruise at the ignition switch bezel? Just so I am sure which system you have. I think all MKII's had this though.

 

The control unit is behind headlight on upper right side, about the size of a pack of cigarettes. Black, 11 wires going into it. make sure this connector is clean.

 

You also need to make sure clutch side switch is not actuated, this is located on clutch reservoir. Brake switches are easy to check, brake light lit if they are problem usually.

 

Could be the engage switch needs cleaned. You can do an ohm meter check on the cable coming from the right side handle bar switch. The connector is behind head light unit. Below is a link to cleaning switch if it comes to that. Another problem is that the cruise cable from the actuator to the junction box has to much slack in it, should only be 1/16" at actuator total free play.

 

http://www.venturerider.org/forum/showthread.php?t=42433

 

Here is a link to schematic for 1st gens. 1st one is full schematic. 2nd one is schematic without connectors shown, much easier to follow.

 

http://www.venturerider.org/wiring/86-87%20Yamaha%20Venture%20DS%20Wiring%20Diagram%20Rev%20D.pdf

 

http://www.venturerider.org/wiring/86-89%20Yamaha%20Venture%20Simplified%20Circuit%20Diagram%20Rev%20D.pdf

 

Link to fixing E4 error.

 

http://www.venturerider.org/forum/showthread.php?t=493

 

Gary

[jeeper0202]

check and make sure that the plug to the relay did not vibrate out .. that is what happend to mine.. was not pluged all the way in till it clicked in place .. and that was 3 years ago

Last season the cruise control worked great.

Today was the first time out this year, And the cruise didn't want to work.

When I left this morning the cruise did work going in to town. We left on our STAR chapter ride, and the cruise would turn on but the set button would not work. After about 75 miles we stopped, and when we started again the cruise worked until the first time I disengaged it, the RES light came on came on as it should, but then nothing. Hit the RES button nothing, hit the SET button nothing. I shut the cruise control off and turned it back on and and the on light comes on, but SET button doesn't work.

Though out the day it worked about 4 times with me messing with it, trying to figure it out while on a 400 mile ride.

Everything else is working perfectly.

When I got home this evening I checked brake switches, clutch switch, and wiring. Went for a ride to see if anything helped, and no go. Got home from the test ride, and decided to check the switches on control switches on the handle bars. Took those apart and cleaned and checked the contacts in them. Everything looked good there. Haven't a chance to try it again. But I don't think that was the problem either.

 

Over the winter I changed the motor oil & oil in the final drive, replace the rear tire, put chrome side covers on, serviced air filters, put billet air filter covers on, put chrome clutch & brake levers on.

 

Any ideas on what & where to check next.

Help is always appreciated.

 

Thanks,

Ron