What can cause your cruise control not to work?
Four Reasons the Cruise Control In Your Vehicle Stopped Working
- Bad Speed Sensor.
- Bad Brake Pedal Switch.
- A Blown Fuse.
- Damaged Cruise Control Cable or Vacuum Actuator. Unlike today’s cutting-edge drive-by-wire and adaptive cruise control technology, the cruise control system in many vehicles is largely mechanical.
Why does my cruise control only work sometimes?
Most of the time this is caused by a bad brake switch. If the switch is shorting out, then it will cause the computer to think that the brakes are being applied, which turns off the cruise control. If the switch is fine, then it may have a bad speed sensor or the cruise control switch itself is bad.
How do I know if my cruise control module is bad?
Symptoms of a Bad or Failing Cruise Control Vacuum Bleed Switch
- Cruise control does not disengage when pedal is pressed.
- Cruise control disengages on its own intermittently.
- Hissing noise coming from under the dash.
How do you test a cruise control module?
A quick way to diagnose this is to try holding the brake pedal up with the top of your left foot at the same time as you are engaging the cruise control while on a test drive. If the cruise control tries to set, then the brake switch will most likely need to be adjusted.
Does the throttle position sensor affect cruise control?
The cruise control system controls the speed of the car by adjusting the throttle position, so it needs sensors to tell it the speed and throttle position. It also needs to monitor the controls so it can tell what the desired speed is and when to disengage.
What happens when cruise control goes bad?
If the fuse of your cruise control is bad, the cruise control won’t work. If the speed sensor or speedometer isn’t working, the cruise control won’t work either, since this feature is partially responsible for making the cruise control function properly.
Is it expensive to fix cruise control?
If the problem you’re facing is with your cruise control switch, then you’re looking at probably between $150 and $350 to get it repaired including the cost of parts and labour.