Pro · Four-system diagnostics
FOXWELL Multi-System Scanner
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on AmazonEasy 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 found a problem with the buttons or switches that control the cruise control. It's like when your TV remote doesn't work right because some buttons are not doing what they should.
The engine control module (ECM) detects a mismatch between the signals from the cruise control multi-function inputs.
The P0585 code is triggered when the ECM receives conflicting or out-of-range signals from the cruise control multi-function switches. These switches are responsible for various cruise control operations, such as setting speed, accelerating, decelerating, and canceling cruise control. The ECM expects these inputs to correlate correctly, and any discrepancy will set this code.
• Cruise control not working
• Cruise control disengages unexpectedly
• Check engine light illuminated
• Faulty cruise control switch
• Wiring issues or poor connections
• Faulty ECM
ECM: Engine Control Module, the computer that manages engine functions.
Cruise Control: A system that automatically controls the speed of a vehicle.
• Check for any other related codes.
• Inspect the cruise control switches for damage.
• Test the wiring and connections for continuity.
• 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 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect cruise control switches for wear.
• Ensure wiring is not exposed to moisture.
• Perform routine vehicle diagnostics.
Sensor Issue
• Avoid using cruise control until the issue is resolved.
• Consult a professional mechanic for diagnosis.
Check with your vehicle manufacturer for warranty coverage on electrical components.
This code has been reported in vehicles with high mileage, often due to wear and tear on the cruise control switches.
Moderate – While it doesn't affect the basic operation of the vehicle, it should be addressed to ensure cruise control functionality.
Driving with a malfunctioning cruise control system can lead to unexpected vehicle behavior. Use caution and seek repairs promptly.
• Vehicle in motion
• Cruise control engaged
The cruise control switches are typically located on the steering wheel or steering column.
Q: Can I still drive my car with this code?
A: Yes, but you should avoid using cruise control until the issue is fixed.
Q: Will this code cause my car to fail emissions testing?
A: No, this code is related to the cruise control system and not emissions.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on Amazon
Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.