P0577

2017-10-10

Description:

  • The fault code P0577 signifies that the cruise control system is stuck on, which can cause the vehicle to continue maintaining its set speed, regardless of whether or not the driver steps on the brakes or accelerator pedals.

Possible Symptoms:

  • Cruise control system stays on even when brakes are applied

  • Inability to disengage cruise control system

  • Illuminated cruise control light

  • Inability to set or adjust cruise control speed

Possible Causes:

  • Faulty brake light switch

  • Malfunctioning cruise control switch

  • Open or shorted electrical circuit

  • Failed cruise control module

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 brake light switch

  • Replace the cruise control switch

  • Check and repair any damaged wiring or connections in the circuit

  • Replace the cruise control module, if necessary

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