P0604

2017-10-10

Description:

  • “The fault code P0604 indicates that there is an internal error in the engine control module (ECM) that is causing the RAM to malfunction. This can result in a variety of issues with the vehicle's performance.”

Possible Symptoms:

  • Check engine light is illuminated

  • Reduced engine power or acceleration

  • Engine misfires or stalling

  • Rough idle or poor drivability

Possible Causes:

  • Damaged or faulty internal components of the ECM

  • Malfunctioning sensors or actuators that are connected to the ECM

  • Electrical short circuits or other wiring problems

  • Low battery voltage or other power supply issues

Related Parts:

  • Engine Control Module (ECM): ECM is the part of the car computer that controls the engine system and performance. Problems lead to poor fuel economy, engine stalling & unwanted engine vibrations

Possible Solutions:

  • Replace the ECM if necessary

  • Check and repair any damaged sensors or actuators connected to the ECM

  • Inspect and repair any wiring issues or electrical short circuits

  • Address any low battery voltage or other power supply issues

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