P1246 2002 FORD F150 - Alternator Load Input Failed
- Faulty Alternator/Generator
- Alternator/Generator harness is open or shorted
- Alternator/Generator circuit poor electrical connection
- Damaged Powertrain Control Module (PCM)
- Engine Light ON (or Service Engine Soon Warning Light)
P1246 2002 Ford F150 DescriptionThe Powertrain Control Module (PCM) monitors generator load from the generator/regulator in the form of frequency. The frequency range is determined by the temperature of the voltage regulator where 97% represents full load, below 6% means no load.
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