P0576
Cruise Control Input Circuit Low
Cruise control
Generic OBD-II
Low
What it means
P0576 means the cruise control module is reading an abnormally low voltage on its input circuit — the line that carries commands from the cruise control switch. The likely result is that cruise control won't engage or hold a speed. It's a comfort-feature fault and doesn't affect normal driving.
Low
Can I keep driving? Safe to drive — only cruise control is affected; normal driving, braking, and acceleration are unchanged.
Common symptoms
What you'll notice
- Check-engine light on
- Cruise control won't engage
- Unable to set or hold a set speed
- Cruise control indicator light stays off or behaves oddly
Common causes
Most likely first
- Faulty cruise control switchLikely
- Short to ground in the cruise control input wiringCommon
- Blown fuse or poor connection in the cruise control circuitCommon
- Failed cruise control moduleLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check the cruise control switch signal with a meter — a low input often means a switch or a wire shorted to ground.
- Inspect the cruise control fuse and connectors, and repair any loose or corroded connections.
- Check the input wiring for shorts to ground between the switch and the module.
- If the switch and wiring are good, test the cruise control module. Clear the code and re-test.
FAQ
Quick answers
Is it safe to drive with P0576?+
Yes. The fault is limited to the cruise control input, so the car drives normally. You just may not be able to use cruise control until it's repaired.
Can I just clear P0576?+
You can, but it will return once the module again reads a low input voltage. Repair the switch or wiring to clear it for good.
Related codes
Often seen with P0576
Read & clear P0576 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX