Does ECM control cruise control?
The cruise control system automatically controls the vehicle speed. The cruise control system is controlled by the engine control module (ECM).
What are the conditions required to enable cruise control?
All cruise control systems must be capable of being turned off both explicitly and automatically when the driver depresses the brake, and often also the clutch. Cruise control often includes a memory feature to resume the set speed after braking, and a coast feature to reduce the set speed without braking.
Does the throttle position sensor affect cruise control?
If the throttle position sensor and its other sensor partners do their job correctly, your car accelerates, cruises, or coasts smoothly and efficiently, as you expect, while maintaining optimal fuel economy. In most cases, the Check Engine Light is illuminated if a TPS failure is detected.
What to look for in a cruise control system?
Do a visual check of all wiring relating to the cruise control system. Use your inspection mirror to see places you can’t see otherwise. Look for melted insulation, broken wires, burned wires and twisted wires without a wire connector.
What to do if your Cruise Control is out of adjustment?
If these are out of adjustment, the voltage cannot get to the components down stream with enough power to operate the cruise control. These can be adjusted to the right setting by using your service manual for the correct position. For vacuum-operated systems, you will need to perform different steps than those used for an electronic set-up.
Where is the fuse box on a cruise control?
Locate the fuse box under the driver’s console. It has a plastic cover that can be removed . Check the inside diagram to determine which fuse you need to check. Probe both sides of the fuse. If one or neither lights the test light, the fuse is defected and replace.