Community Forums

Doc S · 07-02-2012, 08:33 AM

I'm having a problem with the cruise control on my 2011 freightliner chassis under an Integra motor home. When you tap the break the cruise control will not shut off ! You have to shut it of with the on/off switch ! This is pretty "scary" when you hit the break and the unit keeps pulling !

Is there a fuse somewhere for this I might check ? Anyone else had this problem ?

Thanks in advance,
Doc S

njs42 · 07-02-2012, 08:39 AM

I'm not a mechanic.

No response yet so I'll just mention that in the past I have read on IRV2 that there is a switch on the brake pedal (shaft) that inactivates the cruise control (sounds quite logical). The adjustment of this switch has been identified as a source (potential) of a number of problems. Perhaps your switch(assuming you have one) is dislodged out of alignment or does not have electrical power.

You might want to look there until someone who has a more definative and informed answer.

rgvtexan · 07-02-2012, 09:49 AM

Do your brake lights work? If not, pursue that elect circuit.

mccsix · 07-02-2012, 02:37 PM

Jacob at 800-945-4787 should have the answer, but suspect that njs42 has the right approach.

wa8yxm · 07-02-2012, 03:07 PM

While I do not know your specific system. MOST Cruise control systems read the voltage across the brake light switch

They look for 12v on the hot side (indicating a good fuse) and zero on the lamp side (Indicating switch open)

If your brake light switch is NOT CLOSING.. that's your answer.

If it is (That is if brake lights work normally) the answer is much more expensive.

Fred Cooper · 07-31-2012, 10:12 PM

One member here has posted that he cured a problem with his cruise control by removing the corrosion from the two brake switches located on the bottom of the air brake treadle (access from under the motorhome).

Fred

Glfpilot · 08-14-2012, 04:35 PM

I am also having a cruise control problem. Have a Gulf Stream home on Freightliner chassis and have no power to my cruise control. The cruise control light does not come on and the CC switch does not engage. The MH is a FRED and I would like to know if anyone can tell me where the CC fuse might be located.
Thanks, Glfpilot.

Skip426 · 08-22-2012, 11:30 PM

Quote:

Originally Posted by Fred Cooper

One member here has posted that he cured a problem with his cruise control by removing the corrosion from the two brake switches located on the bottom of the air brake treadle (access from under the motorhome).

Fred

Fred, you have a long memory, but my problem was with cruise control no-op in the rain. And the clean up has been working 100% .

Doc S. you need to know if your brake lights are working, first. If they are working then I think you'll have to get the Engine Control Module scaned to see if that module is getting the signal.
Do you have a Smart Wheel ?

powerboatr · 08-23-2012, 11:56 AM

our f/l chassis you had to depress the pedal enough to actually engage the brakes, the rv techs adjusted something under neath where the brake light and air pressure switches are located, so i was told

but you still must press the pedal vice nudging it
which is weird imo, on mine i can feel the brake pedal just engage the pressure valve then the cruise will dis-engage

i too use the switch to dis-engage unless its a reactive maneuver
which is very unlike our auto, there you just kick/tap the pedal and it dis-engages

Doc S · 08-24-2012, 06:09 AM

Thank you to all who have replied to my post. Ended up at the Freightliner dealer and they finally traced it to a bad computer in the dash. Replaced it and all is good.