P0623

2017-10-10

Description:

  • The fault code P0623 indicates that there is an issue with the generator lamp control circuit. This may cause various issues in the electrical system of the vehicle and may result in the battery not charging properly.

Possible Symptoms:

  • Illuminated battery warning light

  • Reduced electrical power to the vehicle

  • Dead battery

  • Malfunctioning electrical system.

Possible Causes:

  • Faulty generator lamp control circuit

  • Failed alternator

  • Loose or corroded electrical connections

  • Failed engine control module (ECM)

Related Parts:

  • Generator Lamp: Bulb on the Instument Panel that denotes a fault in the generator system. This car's bulb doesn't work

Possible Solutions:

  • Replace the faulty generator lamp control circuit

  • Check and replace the failed alternator

  • Tighten or clean any loose or corroded electrical connections

  • Replace the engine control module (ECM) if necessary

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