Safety Warning
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.
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HOMESERVICE MANUALSFORD2018FUSION PLATINUM HYBRIDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (HYBRID)DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONSDTC P0605 (PCM) - INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR
2018 Ford Fusion Platinum Hybrid
DTC P0605 (Pcm) - Internal Control Module Read Only Memory (ROM) Error
2018 Ford Fusion Platinum HybridSECTION DTC P0605 (Pcm) - Internal Control Module Read Only Memory (ROM) Error
P0605 (PCM) - INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR
| Description: | This DTC sets when the PCM ROM has been corrupted. | ||
| Possible Causes: |
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| Diagnostic Aids: | Reprogram or update the calibration. Reprogram the vehicle identification (VID) block. Check for other DTCs or drive symptoms for additional information. Be sure to check for aftermarket performance products before replacing the PCM. If replacement is necessary, refer to 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. | ||
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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.