F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
Multifunction Electronic Control Modules: Service Precautions
CAUTION:
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Prior to removal of the GEM, it is necessary to upload module configuration information to a diagnostic tool. This information needs to be
downloaded into the new module once installed.
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Once the new GEM is installed, it is necessary to download the module configuration information from the diagnostic tool into the new module.
