What Causes the Cruise Control System Fault Warning?
1 Answers
Here are the reasons for the cruise control system fault warning in cars: 1. Brake light issues: If the brake light switch cannot be detected, the cruise control will not cancel even when the brake pedal is pressed. In some cruise systems, the system will be disabled when the brake light is burned out. If the owner replaces the brake light bulb, switching from a halogen bulb to an LED bulb, the CCM may interpret the lower energy consumption of the LED as a burned-out brake light, preventing the cruise system from activating. 2. Fuse and relay problems: In certain models, fuses and relays are used to protect the cruise control actuator circuit. If these components fail, the system will not function. 3. Wiring harness issues: In many models, the cruise control switch is installed on the steering wheel. If the wiring harness connected to the switch malfunctions, the cruise system cannot be controlled.