I have a 1999 volvo s 80 t6. My cruise control button will turn on the system ( "Cruise" lights up on the dash) but when I push the button to engage nothing happens. I know it could just be the brake pedal switch but I have lifted on the pedal with no result. I am wondering if my abs problem is related (I have removed the exciter ring on the front left hub as it was broken-- also possible that the abs module isn't working properly (I bought the car with the abs light already on)). Are there any typical weaknesses with this cruise control system I should focus on.
Most likely the clock spring is not the problem because when u push the button the dash light cruise comes on.wich means that you do not have an open circuit.with a light tester check to see if you are getting power to the cruise control servo.if you are then replace it.if no power you will need a new cruise control stick on the steering column.
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Re: cruise control won't engage
There is one weakness, the rotating clock spring contact that connects the airbag and other controls from the steering wheel to the steering column harness, it may have an open, if u have a wiring harness diagram you can test the switch a the column connector to see if it sends the cruise signal to engage, if not then the switch or rotating contact are defective in most cases.
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i've been told it's speed sensors. I have the same on my 1999, but my light flashes when i try to engage. And 1 out of 10 times, it engages and I can cruise. Just not worth it to me to fix. Ford never claimed there was a problem.
The cruise-controls have 2-buttons that must be activated before it gets the car going when you remove your foot off the gas-pedal.
The cruise button is essentailly a switch that turns 'on' the cruise servo-motor that tells the sytems that you wants to use it, so it gets ready.
There are other three switches on the right-side of the steering wheel namely: resume accel; cancel; set decel.
To get your car to cruise: you must steady your speed and foot on the gas-pedal. You cannot just press the switches and expect the car to cruise. It takes about two-to-three seconds for the system to respond to a set cruising speed.
How to do it: accelerate to a speed of about 30-mph. Press the 'cruise' button on the dash first. Next you press 'set decel' button. This will turn 'on' the cruise control light on the instrument panel. Then wait a second or three and you would feel the cruise engagement. Any touch on the brake pedal will slow down the car and turns the cruise off. The 'cancel' button turns off the cruise light on the instrument panel.
If you hit the brake-pedal at any time for any reason, and you would like to continue cruising again, simply press the 'resume accel' button.
The cruise system works in conjunction with the braking system of the car. So all major parts of the braking system must be in good condition, otherwise the cruise system could shut off itself.
That toggle switch is for the security system. That year miata never came with any switches for the soft top of any kind. Most likely that is an aftermarket alarm system. Most factory alarm systems do not come with a toggle switch.