FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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Mercury
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2004
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Sable V6-3.0L VIN U
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Description and Operation
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Standard Models (Non Bi-Fuel)
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CMP FMEM
CMP FMEM
CMP FMEM
During CMP FMEM the COP ignition works the same as during engine crank. This allows the engine to operate without the PCM knowing if cylinder one is under compression or exhaust.