Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble understanding the signal that turns off the cruise control. It's like when you press a button on a remote and nothing happens.
The P0566 code is triggered when the Engine Control Module (ECM) detects an issue with the signal that is supposed to turn off the cruise control system.
The P0566 code indicates that the ECM has identified a malfunction in the cruise control off signal circuit. This could be due to a fault in the switch, wiring, or the ECM itself. The cruise control system relies on various inputs to engage and disengage, and a fault in any of these components can lead to this code being set.
• Cruise control not turning off
• Check Engine Light illuminated
• Cruise control system not responding
• Faulty cruise control switch
• Damaged wiring or connectors
• Malfunctioning ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Check for any other stored codes and address them first.
• Inspect the cruise control switch for damage or wear.
• Examine the wiring and connectors for corrosion or damage.
• Replace the faulty cruise control switch.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect the cruise control system.
• Keep wiring and connectors clean and dry.
• Use the cruise control system as per the manufacturer's instructions.
Sensor Issue
• Avoid using cruise control until the issue is resolved.
• Consult a professional mechanic for an accurate diagnosis.
Check with your vehicle's manufacturer for specific warranty coverage related to the cruise control system.
This code has been commonly reported in vehicles with electronic cruise control systems, especially as they age.
Low – This issue does not affect the drivability of the vehicle but should be addressed to ensure proper cruise control functionality.
Driving with a malfunctioning cruise control system can lead to unexpected acceleration or deceleration, which may compromise safety.
• Vehicle should be in a safe, stationary position.
• Ensure the ignition is in the 'on' position without starting the engine.
The cruise control switch is typically located on the steering wheel or steering column.
Q: Can I drive my car with the P0566 code?
A: Yes, but it's best to avoid using cruise control until the issue is fixed.
Q: Will fixing the P0566 code turn off the Check Engine Light?
A: Yes, resolving the issue should clear the code and turn off the light.
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