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HOMESERVICE MANUALSMERCURY1998MOUNTAINEER 5.0 P, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 51 (COMPUTER RELEARN PROCEDURES)COMPUTER RELEARN PROCEDURESWINDSTARFRONT ELECTRONIC MODULE (FEM) PROGRAMMING
1998 Mercury Mountaineer 5.0 P, AWD

Front Electronic Module (FEM) Programming

1998 Mercury Mountaineer 5.0 P, AWDSECTION Front Electronic Module (FEM) Programming
WARNING: This page does not describe the selected car, but rather 26 other vehicles, including the 1999 Mercury Villager, 1999 Mercury Tracer, 1999 Mercury Sable, 1999 Mercury Mystique, and 1999 Mercury Mountaineer. However, it is still accessible from the selected car via links, so may be relevant.

Prior to removal of FEM, upload module configuration information to the New Generation Star (NGS) tester using manufacturer's instructions. Once module has been replaced, download module configuration information from NGS tester into new module.

NOTE: This procedure is used when a customer needs keys programmed into system and does not have 2 programmed ignition keys available, or when programmed ignition keys have been lost and/or ignition switch assembly has been replaced. This procedure will erase all programmed ignition keys from memory and prevent vehicle from starting until 2 keys have been programmed. Ignition keys must have correct mechanical key cut for vehicle and must be an encoded key. If additional key(s) are to be programmed, perform KEY PROGRAMMING - USING 2 PROGRAMMED KEYS. If remaining keys are with customer and not with vehicle, instruct customer to see owner's manual to program spare key(s).
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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.