HomeCardone 78-8543F Engine Control Module
Part #: 78-8543F

Cardone 78-8543F Engine Control Module

Engine Control Module
4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Engine Control Module
Fitment: Ford and Mercury, Contour and Mystique
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Reliable Engine Control Module for Ford Contour and Mercury Mystique

The Cardone Engine Control Module (ECM) part number 78-8543F is designed specifically for Ford and Mercury vehicles, including the Contour and Mystique models. This ECM ensures proper engine management and optimal vehicle performance by controlling critical engine functions.

  • Compatible with Ford Contour and Mercury Mystique models
  • Part number 78-8543F for precise fit and function
  • Part of Cardone's Engine Control Module product line
  • Supports engine management and powertrain control
  • Includes important programming and reset considerations

About the Cardone Engine Control Module Product Line

The Cardone Engine Control Module product line focuses on delivering reliable and compatible ECM units for various vehicle makes and models. These modules are engineered to meet or exceed OEM specifications, ensuring seamless integration with your vehicle's existing systems. The 78-8543F ECM is part of this line, providing a direct replacement solution for select Ford and Mercury vehicles.

Detailed Product Description

This Cardone ECM (part number 78-8543F) is designed to replace the original engine control module in Ford Contour and Mercury Mystique vehicles. It manages engine functions such as fuel injection, ignition timing, and emissions control. Proper ECM operation is critical for maintaining engine efficiency and drivability. The module requires specific programming steps, including VIN programming for Chrysler PCM units with a "v" suffix and potential passive anti-theft system (P.A.T.S.) resets for Ford vehicles. Not all Ford models require a P.A.T.S. reset, so verifying your vehicle's system is essential before installation.

Common Issues Addressed by This ECM

  • Engine misfires or poor performance due to faulty ECM
  • Check engine light triggered by ECM errors
  • Vehicle starting problems related to powertrain control
  • Inconsistent fuel economy or emissions issues
  • Communication errors with vehicle security systems

Installation Notes and Tips

  • Verify the part number 78-8543F matches your vehicle's requirements
  • Check if VIN programming is necessary, especially for Chrysler PCM units with a "v" suffix
  • Confirm whether your Ford or Mercury vehicle requires a passive anti-theft system reset
  • Use a compatible diagnostic tool, such as a Tech 2 scanner, for programming and resetting procedures
  • Ensure the original ECM is the cause of the issue before replacement

Quality Assurance and Warranty

Cardone Engine Control Modules are tested to meet OEM standards for durability and performance. While specific warranty details are not provided here, Cardone typically offers coverage against defects in materials and workmanship. Proper installation and programming are essential to maintain warranty validity and ensure optimal operation.

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2000FordContour2.0LL4N/AAll Calibrations with Module ID LP2-352; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Correct VIN and OE Number required when ordering; Engine Control Module
2000MercuryMystique2.0LL4N/AAll Calibrations with Module ID LP2-352; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Correct VIN and OE Number required when ordering; Engine Control Module
1999FordContour2.0LL4N/AAll Calibrations with Module ID LP2-352; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Correct VIN and OE Number required when ordering; Engine Control Module
1999MercuryMystique2.0LL4N/AAll Calibrations with Module ID LP2-352; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Correct VIN and OE Number required when ordering; Engine Control Module

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

XS2A12A650ABAXS2A12A650AFAXS2A12A650AFBXS2A12A650AGAXS2A12A650AGBXS2A12A650AHAXS2A12A650MAXS2A12A650MBXS2A12A650MCXS2A12A650MDXS2A12A650MEXS2A12A650NAXS2A12A650NBXS2A12A650NCXS2A12A650NDXS2A12A650NEXS2A12A650TAXS2A12A650TBXS2A12A650ZAXS2Z12A650ABAXS2Z12A650AFAXS2Z12A650AFBXS2Z12A650AGAXS2Z12A650AGBXS2Z12A650AHAXS2Z12A650CAXS2Z12A650CBXS2Z12A650DAXS2Z12A650DBXS2Z12A650MAXS2Z12A650MCXS2Z12A650MDXS2Z12A650MEXS2Z12A650NAXS2Z12A650NCXS2Z12A650NDXS2Z12A650NEXS2Z12A650TAXS2Z12A650TBXS2Z12A650ZAYS2F12A650CAYS2F12A650CBYS2F12A650DAYS2F12A650DBYS2Z12A650CAYS2Z12A650CBYS2Z12A650DAYS2Z12A650DB

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.