P0612 OBD II Trouble Code Fuel Injector Control Module Relay Control

How to easily diagnose, repair, and info on causes of a P0612 trouble code that indicates a detected failure of the fuel injector control module relay.

Symptoms of P0612 OBD II Trouble Code

  • Engine drivability issues
  • Reduced engine performance
  • Diminished fuel efficiency
  • Other stored codes

Common Causes of P0612 OBD II Trouble Code

  • Faulty PCM
  • PCM programming error
  • Defective PCM power supply relay
  • Open or shorted circuit or connectors in the CAN harness
  • Failed PCM power source
  • Insufficient control module ground

Severity of P0612 OBD II Trouble Code

Internal control module codes must always be taken seriously. A stored code P0612 could result in a variety of drivability concerns, including a no-start condition.