P0578

2017-10-10

Description:

  • The fault code P0578 indicates that there is an issue with the cruise control multi-function input A circuit. This may cause the cruise control system to stop functioning properly.

Possible Symptoms:

  • Non

  • functioning cruise control system

  • Illuminated cruise control light on the dashboard

  • Illuminated check engine light

  • Inability to set or maintain a constant speed while driving

Possible Causes:

  • Faulty cruise control multi

  • function switch

  • Damaged or faulty wiring in the cruise control system

  • Loose or corroded connections in the cruise control system

  • Failed brake pedal position switch

Related Parts:

  • Cruise Control Circuit: Cruise control automatically controls the speed of a car by maintaining a steady speed as set by the driver. Problems lead to car not able to cruise at a constant speed

Possible Solutions:

  • Replace the faulty cruise control multi

  • function switch

  • Inspect and repair any damaged or faulty wiring in the cruise control system

  • Clean or tighten any loose or corroded connections in the cruise control system

  • Replace the failed brake pedal position switch if necessary

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