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 MANUALSFORD2019ESCAPE SEL, 1.5L ENG VIN D, FWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) - DTC P0607 - P2091DTC P064E - INTERNAL CONTROL MODULE O2 SENSOR PROCESSOR PERFORMANCE (BANK 2)
2019 Ford Escape SEL, 1.5L Eng VIN D, FWD
DTC P064E - Internal Control Module O2 Sensor Processor Performance (Bank 2)
2019 Ford Escape SEL, 1.5L Eng VIN D, FWDSECTION DTC P064E - Internal Control Module O2 Sensor Processor Performance (Bank 2)
DTC DESCRIPTION P064E - INTERNAL CONTROL MODULE O2 SENSOR PROCESSOR PERFORMANCE (BANK 2)
| Description: The PCM monitors the application specific integrated circuit that controls and monitors the universal heated oxygen sensor bank 2, sensor 1 (HO2S21). This DTC sets when the PCM detects an internal circuit or communication concern. | |||
Possible Causes:
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| Diagnostic Aids:
Check for other DTCs and diagnose those first. Check for intermittent universal HO2S wiring concerns. Check the universal HO2S wiring between the PCM and the sensor for damage. Check for aftermarket performance products. Reprogram or update the calibration. Clear the DTCs, repeat the self-test. If the DTC is retrieved again, install a new PCM. Refer to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . |
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| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DZ . | ||
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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.