P0620

2017-10-10

Description:

  • The fault code P0620 indicates that there is a malfunction in the generator control circuit. This may cause the vehicle's battery to drain, resulting in a no-start condition.

Possible Symptoms:

  • Vehicle may not start or may be difficult to start

  • Battery warning light may be illuminated

  • Battery may drain quickly

  • Electrical system may not function properly

Possible Causes:

  • Faulty generator

  • Faulty voltage regulator

  • Open or short in the generator control circuit

  • Failed engine control module (ECM)

Related Parts:

  • Generator Circuit: Generator provides the electricity to start a car's alternator. This car's generator has an issue that may make it hard to start the car

Possible Solutions:

  • Replace the faulty generator

  • Replace the faulty voltage regulator

  • Check and repair any open or short in the generator control circuit

  • Replace the engine control module (ECM) if necessary

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