Cruise Control Dont Work
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Join Date: Aug 2007
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The clock spring referred to in other posts is the contact mechanism behind the horn button that takes the signals from the button on the steering wheel into the computer.
Here are three relevant schematics
There are 2 brake activated switches. One is used for turning on the stop lamps, and is also monitored by the computer to kill the cruse. The second is a backup switch, that opens when brake pressure is present. BTW - that second switch is the one that is affected by the Ford recall.
The warning lamp circuit will also disable CC. This can be turned on by the parking brake, low fluid level, or low vacuum. You can rule all of those out by checking to see if the brake light comes on when the park brake is on (to make sure the bulb works) and goes out when the brake is off. If it doesn't, your problem is probably there.
Here are three relevant schematics
There are 2 brake activated switches. One is used for turning on the stop lamps, and is also monitored by the computer to kill the cruse. The second is a backup switch, that opens when brake pressure is present. BTW - that second switch is the one that is affected by the Ford recall.
The warning lamp circuit will also disable CC. This can be turned on by the parking brake, low fluid level, or low vacuum. You can rule all of those out by checking to see if the brake light comes on when the park brake is on (to make sure the bulb works) and goes out when the brake is off. If it doesn't, your problem is probably there.
#10
Stupid question but have you checked your fuses? I also have a CC problem. Mine works fine until I turn on the blinker and it shuts off like I hit the brake. I believe my problem is from the multifunction switch. Sometimes when I turn on the blinker the light on the dash doesn't blink and the front light doesn't blink either but the rear does. And sometimes when I turn it on the dash light blinks and front and rear blink like normal. That is the reason I am going with multiswitch...Comments?
#11
neal I think yours is a short, when you apply the brakes the CC shuts off well the blinker uses the same light as the brake light so if you are getting feed back the brake sensor that shuts the cc off could be getting energized by the blinker light causing it to turn off
As for my take on the scatgos problem, check your brake sensor that it is working properly and if you have manual make sure your clutch position sensor is working properly.
As for my take on the scatgos problem, check your brake sensor that it is working properly and if you have manual make sure your clutch position sensor is working properly.
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Originally Posted by Neal 97 250
Stupid question but have you checked your fuses? I also have a CC problem. Mine works fine until I turn on the blinker and it shuts off like I hit the brake. I believe my problem is from the multifunction switch. Sometimes when I turn on the blinker the light on the dash doesn't blink and the front light doesn't blink either but the rear does. And sometimes when I turn it on the dash light blinks and front and rear blink like normal. That is the reason I am going with multiswitch...Comments?