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Home >> Ford >> 2009 >> Mustang Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P0605: - Internal Control Module Read Only Memory (ROM) Error
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DTC P0605: - Internal Control Module Read Only Memory (ROM) Error

DTC P0605: - INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR

Description:  The powertrain control module (PCM) ROM has been corrupted.
Possible Causes: 
  • An attempt was made to change the calibration
  • Module programming error
  • Aftermarket performance products
  • PCM
Diagnostic Aids:  Reprogram the vehicle identification VID block (use as built data). Check for other DTCs or drive symptoms for further action. Make sure to check for aftermarket performance products before installing a new powertrain control module (PCM). If it is necessary to install a new PCM, reprogram the FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) .
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.