Ford Focus Engine Control Computer

Replacement Parts

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Nimble, stylish and mannerly, your Ford Focus provides great value in a fun-to-drive package. Make sure your smart little car doesn't suffer from a brain drain caused by a faulty computer. Install a new Ford Focus engine control module from AutoZone and get back to smart driving.

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  • Part Number: 78-1341F
  • Notes: All Calibrations with Module ID #AS4A-12B684-DB. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Additional vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues. Unit may require additional programming either ON or OFF the vehicle. PATS Module Requires Programming after ECM Install.
  • Part Number: 78-9182F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required. PATS Module Requires Programming after ECM Install. With Module #VH1-S4614. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-9165F
  • Notes: Flash programming included in price. With module #PBO-250. Customer-specific parameters such as courtesy light timing, etc may need to be reset after ECM is re-installed. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required.
  • Part Number: 78-9146F
  • Notes: Flash programming included in price. All calibrations with module ID #8S4A-12B684-AA, AB, AC, CA. Customer-specific parameters such as courtesy light timing, etc may need to be reset after ECM is re-installed. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required.
  • Part Number: 78-9183F
  • Notes: Flash programming included in price. With module #VH1-S4615. PATS Module Requires Programming after ECM Install. Customer-specific parameters such as courtesy light timing, etc. May need to be reset after ECM is re-installed. Flash units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Additional vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues.
  • Part Number: 78-8540F
  • Notes: Flash programming included in price. With module #LP2-321. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Additional vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues.
  • Part Number: 78-9175F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required. With Module #VH1-S4601. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-1201F
  • Notes: All Calibrations with Module ID #AS4A-12B684-DA. Unit may require additional programming either ON or OFF the vehicle. Units must be flashed ON the vehicle. Vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues.
  • Part Number: 78-9180F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required. PATS Module Requires Programming after ECM Install. With Module #VH1-S4611. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-9164F
  • Notes: Flash programming included in price. With module #PBO-241. PATS Module Requires Programming after ECM Install. Customer-specific parameters such as courtesy light timing, etc. May need to be reset after ECM is re-installed. Flash units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Additional vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues.
  • Part Number: 78-1159F
  • Notes: All Calibrations with Module ID #AS4A-12B684-CA. Unit may require additional programming either ON or OFF the vehicle. Units must be flashed ON the vehicle. Vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues.
  • Part Number: 78-9166F
  • Notes: Flash programming included in price. With module #PBO-251. Customer-specific parameters such as courtesy light timing, etc may need to be reset after ECM is re-installed. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required.
  •  | Page 1 of 3 |  

Your ECM for Ford Focus controls key components in your car's engine like fuel mixture, ignition timing and emissions performance. AutoZone's Focus engine control computer has a positive impact on your car's fuel economy, proper shifting and smooth ride. Don't put up with problems associated with a ruined ECC. Come into an AutoZone near you where our staff is ready with expert advice and friendly service. We offer free battery charging, engine diagnostic testing and Same Day Store Pickup (in most cases) when you order online.

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