P0585: Cruise Control Multi-Function Input A / B Correlation

MediumPowertrainCruise Control

What does P0585 mean?

P0585 is a diagnostic trouble code indicating "Cruise Control Multi-Function Input A / B Correlation". This code relates to your vehicle's cruise control and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Symptoms you may notice

  • Check engine light (MIL) illuminated on dashboard
  • Possible issues with cruise control operation
  • Vehicle may enter reduced power mode (limp mode)

Estimated repair cost

Typical range in Australia (parts + labour)

$100 – $600 AUD

Common causes

  • Faulty cruise control component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

This code sits in a driver assistance system such as parking sensors, cruise control, tyre pressure monitoring or a camera. The car drives normally, but the assistance may be off or, worse, half working. Do not rely on it until it has been diagnosed.

Get a diagnosis for YOUR car

Code P0585 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

P0584Cruise Control Vacuum Control Circuit High
P0583Cruise Control Vacuum Control Circuit Low
P0582Cruise Control Vacuum Control Circuit /Open
P0581Cruise Control Multi-Function Input A Circuit High