OBD-II Generic Error Code P0566: How to Fix It

Q: What does OBD-II error code P0566 mean?

P0566 means the engine control module detected a problem with the 'cruise control off' signal circuit, indicating a faulty switch, wiring issue, or module problem.

Q: Can I drive with error code P0566?

Yes, you can drive, but the cruise control will not work. It's generally safe, but get it fixed for convenience.

Q: How do I clear error code P0566?

Use an OBD2 scanner to clear the code after fixing the underlying issue. Simply disconnecting the battery may also clear it temporarily.

Q: How much does it cost to fix P0566?

Replacing a cruise control switch costs $20-$50 for the part, plus labor if you pay a mechanic. DIY can save the labor cost.

Q: What tools do I need to fix P0566?

You will need an OBD2 scanner, multimeter, basic socket set, and screwdrivers. A fuse puller is also helpful.

Abstract

Error code P0566 indicates that the powertrain control module (PCM) has detected an open or short circuit in the cruise control off switch circuit. This can prevent your cruise control from engaging or cause it to disengage unexpectedly. Follow the steps below to diagnose and fix the issue.