Cruise Control Switch 'A' Circuit Low
Cruise control system has detected a problem with the switch circuit.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer sees that the cruise control switch isn’t sending the right signal when you try to use it, which could be due to a wiring issue or a bad switch itself.
What the computer is actually seeing
The cruise control module expects a specific voltage signal (usually around 5 volts) from the switch. If the voltage is lower than expected, it triggers the P0568 code.
What a healthy reading looks like
The expected voltage from the cruise control switch circuit should be around 0.5 to 4.5 volts with the switch in various positions; lower than 0.5 volts indicates a fault.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the wiring and connectors at the cruise control switch for damage or corrosion. Repair if found.
- 22. Measure the voltage at the cruise control switch connector with the ignition on and the switch in use. Expected range is 0.5 to 4.5 volts.
- 33. If voltage is lower than 0.5 volts, inspect the wiring for shorts or breaks. Repair as needed and retest.
- 44. If wiring is good and voltage is correct, replace the cruise control switch and recheck for codes.
Common causes
- Faulty cruise control switch
- Wiring issues such as shorts or breaks
- Corroded connectors
- Faulty cruise control module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It’s usually drivable, but you won't have cruise control functionality until it's fixed.
Will this code come back after clearing it?
If the underlying issue isn't resolved, it likely will return after some driving.
Why does this code sometimes pair with other cruise control codes?
They indicate related faults in the cruise control system circuit or components.
Working a real vehicle right now?
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