P0504

2017-10-10

Description:

  • The fault code P0504 indicates that there is a correlation error between the A and B circuits of the brake switch. This may cause issues with the brake lights and may affect the operation of the brake system.

Possible Symptoms:

  • Inoperative brake lights

  • Illuminated brake warning light on the dashboard

  • Issues with the operation of the brake system

Possible Causes:

  • Faulty brake switch

  • Wiring or connection issues in the brake switch circuit

  • Failed brake control module

Related Parts:

  • Brake Switch Circuit: Brake switch is responsible for engaging and disengaging the brakes on the tires when brakes are applied. Problems lead to inefficient braking

Possible Solutions:

  • Replace the faulty brake switch

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

  • Replace the brake control module if necessary

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