What happens when a cruise control module is engaged?
After the cruise control engage criteria has been met and the cruise control ON and Set/Coast have been commanded, the cruise control module sends a signal to the PCM that the cruise control is engaged. The PCM sends a class 2 message to the BCM that the cruise control is engaged.
What does it mean to have cruise control?
Cruise control is a system to maintain vehicle speed without direct driver input. When you want to engage cruise control, you first turn the system “On” with a button or switch. However, this alone does not start the cruise control.
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.
What does the are / a on the cruise control switch do?
When pressing the R/A (resume/accelerate) on the control switch, ignition positive voltage is applied to the resume/accelerate switch signal terminal of the cruise control module. The cruise control module receives a vehicle speed signal input from the powertrain control module (PCM).
Cruise control is a system to maintain vehicle speed without direct driver input. When you want to engage cruise control, you first turn the system “On” with a button or switch. However, this alone does not start the 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.
Why does my cruise control drop out of engagement?
Does your cruise control fall out of engagement partway up steep hills? Actually, it will normally drop out if the engine has to work too hard, mainly because after a while there isn’t enough vacuum left to pull in the servo after sustained near-wide-open-throttle. You’ll just have to put your foot into it.
What happens when your cruise control goes to 70?
The kids in the back seat have stopped threatening to throw up, too. Then you look in your mirror 20 miles later and see the lights. Red and blue flashing lights. You’re doing over 85 mph and, odds are, Smokey isn’t going to believe you have the cruise set to 70. Time to find out why your cruise control has a mind of its own.