The P0576: Cruise Control Input Circuit Low refers to a problem where the cruise control system detects a low voltage in the input circuit. This could result from a faulty input circuit, low voltage supply, or wiring issues, causing the cruise control system to malfunction.
P0576 – Quick Overview
Code | Information |
---|---|
Meaning | P0576: Cruise Control Input Circuit Low |
Is it serious? | No, but it can cause improper function or disable the cruise control system. |
Possible causes | – Faulty cruise control input circuit – Low voltage in circuit – Wiring issue |
How to diagnose? | – Test cruise control input circuit for voltage – Inspect wiring and connectors – Test cruise control module |
P0576 Meaning
The P0576 code indicates that the cruise control system has detected a low voltage in the input circuit. This could be due to a fault in the circuit, a low voltage supply, or damaged wiring. The cruise control system may not operate properly if this issue is not resolved.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to check if other related codes are present that could help with diagnosis. | OBD-II Scanner |
Test the Cruise Control Input Circuit | Use a multimeter to test the voltage in the cruise control input circuit to ensure it meets the required range. | Multimeter |
Inspect Wiring and Connectors | Inspect the wiring and connectors related to the cruise control input circuit for damage or corrosion. | Flashlight, Multimeter |
Test the Cruise Control Module | Verify that the cruise control module is properly processing input signals and functioning correctly. | Diagnostic Tool, Multimeter |
Clear the Code and Test | After repairs, clear the code using an OBD-II scanner and test the cruise control system. | OBD-II Scanner, Vehicle Manual |
Free PDF: How to choose OBD2 scanner

I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.
✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners
PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide.
Just tell me where to send it.

Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)