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P1246 1998 FORD F150

P1246 1998 FORD F150 - Alternator Load Input Failed

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Alternator/Generator
  • Alternator/Generator harness is open or shorted
  • Alternator/Generator circuit poor electrical connection
  • Damaged Powertrain Control Module (PCM)

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1246 1998 Ford F150 Description

The 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.
OBDII Code P1246 1998 Ford F150 - Alternator Load Input Failed - AutoCodes.com

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P1246 1998 FORD F150 Comments

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