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Author Topic: Cruise Control Stuck (On)  (Read 4381 times)

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efrbc1

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Cruise Control Stuck (On)
« on: April 13, 2014, 05:02:25 PM »

Bike is an '05 SEEG.  Bought it in '07 so the bulk of the mileage (50K) is mine.  No problems prior.

Interesting if not exciting thing happened yesterday while riding on I26.  Had the cruise set at about 75 and went to pass a slower truck.  Bumped the front brake to disengage and accelerated to pass.  After the pass was compete, the bike continued to accelerate!!!  Tried the front brake, rear brake and the clutch and the cruise would not disengage.  Turned the cruise off at the switch on the dash and it still continued to accelerate.  Holy $#I! time now.  Cleared traffic and bumped the kill switch which thankfully worked and got over on the breakdown lane.

Looked for anything obvious (hung up throttle cable, etc) and found nothing.  Started the bike and it instantly started revving up so I hit the Kill again.  Pulled the side cover and pulled the Maxi-Fuse for about 5 minutes.  Started again and all was well.

Stopped at the nearest HD dealer and they had never heard of anything like that happening before.  Hooked it up and the only code was something on the TSSM module which they thought may be due to the load equalizer I have.  Tech did a "test" of the cruise and noted that "something" was not working right but could not elaborate.  Disconnected the cable from the cruise and I finished my trip without incident.

Bike has about 50K.  Only mods are 575 cams and a SERT - both done 5 years ago.  I do have LED turn signals so I have a load equalizer along with the HD taillight module that allows the rear turn signals to operate as run-brake-turn.

This was not fun and I do not recommend this for anyone to try.  Has anyone had this happen or heard of it happening?  I need to get this fixed so I'm looking for suggestions for how.  Could the TSSM or the load equalizer have an impact on this?  Not even sure if the cruise control module can be tested so I hate to just throw parts at it and not know if its fixed.  Any help is greatly appreciated.

Thanks,

Chris
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ultrafxr

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Re: Cruise Control Stuck (On)
« Reply #1 on: April 13, 2014, 07:22:11 PM »

Had a similar but not identical problem on my '99 ultra.  With cruise engaged I would sometimes get sudden unintended acceleration - BUT I was always able to disengage the cruise and stop the acceleration.  I had numerous problems with the cruise on that bike - dropping out, wouldn't engage and the acceleration problem.  I think the cruise motor was replaced several times and the cruise control switch also but nothing ever remedied the problems for long.  Good luck and I hope they get it figured out for you.
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Twolanerider

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Re: Cruise Control Stuck (On)
« Reply #2 on: April 13, 2014, 09:44:38 PM »

When the throttle is stuck and you manually decelerate at the throttle grip?  Even if it's hard can you twist it back and slow the engine down?  If so replace the stepper cable.

With two exceptions the only times I've had bikes with a throttle that didn't slow down after cruise engagement it's been the stepper cable.  Have replaced maybe a half dozen of those cables over the years.  That's the cable that goes from the cruise module to the throttle body.

The other two included one bad cruise control module and one dirty and malfunctioning engagement switch.
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efrbc1

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Re: Cruise Control Stuck (On)
« Reply #3 on: April 13, 2014, 09:57:14 PM »

Turning the throttle back was the one thing I did not try.  Lots of things happening fast so after the first three failed I hit the kill switch.  My question would be that since it was still "stuck" after shutting it off and the only thing that cleared it was pulling the Maxi-Fuse would that not lead to the CC module itself?  If the cable was bad/stuck, pulling the fuse should not have cleared it.

Just trying to think this through and replace what is needed to fix it.
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Twolanerider

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Re: Cruise Control Stuck (On)
« Reply #4 on: April 13, 2014, 10:30:46 PM »

Turning the throttle back was the one thing I did not try.  Lots of things happening fast so after the first three failed I hit the kill switch.  My question would be that since it was still "stuck" after shutting it off and the only thing that cleared it was pulling the Maxi-Fuse would that not lead to the CC module itself?  If the cable was bad/stuck, pulling the fuse should not have cleared it.

Just trying to think this through and replace what is needed to fix it.

It would seem as you describe.  But it's not an absolute.  Think of it this way:

The problem with these is almost always the cable gut sticking in the cable housing.  That's why manually returning the throttle will pull it back.  Doing so usually pushes the cruise cable back also.

But if it can still move at all if you leave it set for a bit the spring tension from the bellcrank on the throttle body will eventually pull it back also.  So the time taken to remove the side cover and pull the maxi fuse and wait a bit and then check things out might also have been the time needed for the cable to get pulled back to normal.

Here's another way to check things out.  Set the cruise control while riding on level ground but leading to an uphill grade.  Watch as the cruise system adds more throttle pressure to maintain speed up the grade.  That's all normal.

Then pay attention going back down the grade and back to level ground.  If your speed is higher than it was when the cruise was originally set your cable is sticking.  You'll know this because it was advanced to maintain speed going up the grade but then couldn't return after that advanced throttle position was no longer needed.  Manually twisting the grip will usually pull the cable back where you want.  This will also usually disengage the cruise in the process if you move the cable very far.

Keep one last thing in mind.  There aren't many parts to this system.  If you're just not sure do things in this order.  Pop open the handlebar clamp and spray the switch with electrical contact cleaner than blow everything out well with a little compressed air.  Do that first because it's pretty easy and absolutely free to try. 

After that try replacing the cruise cable.  It's a little more work to change (though not too bad) and is relatively inexpensive (around $35 the last time I bought one).  So it's a cheap enough piece to try as a likely second guess.

After those two things it gets harder (replacing the switch and pulling its wires through the bars) or considerably more expensive (new cruise head).  So start with easy and cheap and work your way up. 

Good luck :2vrolijk_21: .
« Last Edit: April 13, 2014, 10:33:14 PM by Twolanerider »
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Cvostu

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Re: Cruise Control Stuck (On)
« Reply #5 on: April 14, 2014, 07:05:58 AM »

Could it possibly be the cable with the roll off switch?   I remember I had a problem on my 04 Seeg and that it would not slow down after being engaged.  But I was able to shut it down by the brake or the dash switch.   Might want to look at that.  Stuart.
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efrbc1

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Re: Cruise Control Stuck (On)
« Reply #6 on: April 14, 2014, 08:25:49 AM »

Going to check everything.  Mine was different than yours as none of the "electronic" shut offs worked.  Going to follow Twolane's suggestions first to see if I can find anything obvious.  Hoping that if its the cable I can feel a bind or restriction.  His explanation makes sense in that it seemed that it was a mechanical (cable) issue rather than electrical.  Stay tuned......

Chris
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grc

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Re: Cruise Control Stuck (On)
« Reply #7 on: April 14, 2014, 08:58:48 AM »


Another vote for the stepper cable or cruise control module as noted by Twolane.  Your description points to a mechanical problem, not electrical.

Jerry
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efrbc1

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Re: Cruise Control Stuck (On)
« Reply #8 on: April 24, 2014, 07:33:03 PM »

Pulled the cable to replace it today.  Very "sticky" and would not slide through the housing without hanging up.  Looks like that was the problem so hopeful I won't have to deal with that again.  Still need to set the cable lash and a test ride.  Ordered a new cable for my RK also.  Thanks to all for the help.

Chris
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Twolanerider

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Re: Cruise Control Stuck (On)
« Reply #9 on: April 24, 2014, 11:56:05 PM »

Pulled the cable to replace it today.  Very "sticky" and would not slide through the housing without hanging up.  Looks like that was the problem so hopeful I won't have to deal with that again.  Still need to set the cable lash and a test ride.  Ordered a new cable for my RK also.  Thanks to all for the help.

Chris

Have you got the instructions for setting the lash?  They're posted here on the site somewhere.  WillieG knows where, but somewhere.  Ah, what the hell, just in case you need them already had them stored at the computer I'm on so it was an easy fetch.
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efrbc1

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Re: Cruise Control Stuck (On)
« Reply #10 on: April 25, 2014, 09:58:18 AM »

Thanks - I have them, just ran out of time to get it done.  Typical HD project - three hours to R&R everything just to change the cable which took 15 minutes!!!!

Chris
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