How do you troubleshoot a cruise control switch?
The troubleshooting process is normally done by using a scan tool. However, if one is not available, check the following in the given sequence: The cruise control set switch and the connections to it. The cruise control resume switch and the connections to it. The brake light switch and the connections to it.
What causes the cruise control to be deactivated?
This in turn will activate the ESC light and deactivate the cruise control. A scan to see the error codes that have been set will reveal the cause of the problem. A problem with the throttle body or gas pedal, or the connections to them, will often cause this kind of issue.
Can a faulty brake light cause cruise control to shut down?
In this case, the faulty brake light switch will cause the ESC light to illuminate which in turn will cause an error code to be set. The code will cause the cruise control to shut down. This is a design safety feature. A scan will show the code stop confirm that the switch is the cause of the problem.
Is it safe to use a cruise control?
Tests conducted on drivers that use cruise controls confirm that the reduced levels of driving stress result in a more alert, and therefore a safer driver. The cruise control system is user friendly, safe and easy to operate.
How often does the cruise control go off?
While that is happening, the cruise control on/off doesn’t work or respond. After the minute is up, the indication goes off and then the cruise control will work. This happens about 25% of the time that I try to use cruise control. Any idea what could be causing this?
Why is my cruise control not working on my car?
If the switch is fine, then it may have a bad speed sensor or the cruise control switch itself is bad. One of the easiest tests I do is simply have someone drive behind me and see if the brake lights are coming on without touching the pedal.
Can a brake light disengage cruise control?
Brake Light Switch – As cruise control is automatically cancelled by depressing the brake, some vehicles may disengage cruise control if it cannot detect the brake light switch. Brake Lights – In some systems, cruise control is disabled when a brake light is blown.
How does an adaptive cruise control system work?
Adaptive cruise control systems, sometimes called “smart” cruise, use radar or laser detection to maintain safe distances from vehicles ahead. Some adaptive cruise control systems merely reduce engine speed to maintain distance, but some of the newest adaptive cruise control systems can also engage the brakes to slow or stop the vehicle.