Cruise Control Decrease Distance Signal

Common symptoms

What you'll notice

• Check and replace the cruise control module if faulty
• Inspect and repair any damaged wiring or connections related to the cruise control system
• Verify and correct any issues with the speed sensors or wheel speed sensors
• Inspect and potentially replace the cruise control switch or buttons

Common causes

Most likely first

1. Faulty cruise control module: The cruise control module may be malfunctioning, causing the decrease distance signal to not be properly transmitted to the vehicle.
2. Defective distance sensor: A faulty distance sensor can lead to erroneous signals being sent to the cruise control system, resulting in the decrease distance signal issue.
3. Wiring issues: Damaged or loose wiring connections between the cruise control module and the distance sensor can disrupt the signal transmission and cause the problem.
4. Faulty brake light switch: A malfunctioning brake light switch can interfere with the cruise control system's ability to receive the decrease distance signal when the brakes are engaged.
5. Problematic throttle actuator: A faulty throttle actuator may fail to respond correctly to the decrease distance signal, leading to difficulties in maintaining the desired distance while using cruise control.

How to diagnose & fix

Work through it in order

1. Cruise control fails to engage or maintain speed
2. Increase in fuel consumption
3. Engine hesitation or stumbling
4. Difficulty accelerating or loss of power
5. Illumination of the Check Engine Light