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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P0605: Internal Control Module Read Only Memory (ROM) Error
2005 Ford GTSECTION DTC P0605: Internal Control Module Read Only Memory (ROM) Error
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.
P0605 - INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR
| Description: | The powertrain control module (PCM) ROM has been corrupted. | ||
| Possible Causes: |
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| Diagnostic Aids: | Reprogram the vehicle identification (VID) block (use as built data). Check for other DTCs or drive symptoms for further action. Check for aftermarket performance products before installing a new PCM. If it is necessary to install a new PCM, refer to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) , Programming the (VID) Block for a Replacement PCM. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Refer to the Description, Possible Causes and Diagnostic Aids for the DTC in table. | ||
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.