P1EFC - Battery Charger Control Module System Voltage Low Voltage

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

  • Faulty Battery Charger Control Module
  • Battery Charger Control Module harness is open or shorted
  • Battery Charger Control Module circuit poor electrical connection

Possible symptoms

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

P1efc Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. The Powertrain Control Module (PCM) sets the OBDII code when the Battery Charger Control Module is not to factory specifications.
OBDII Code P1efc - Battery Charger Control Module System Voltage Low Voltage - AutoCodes.com

P1EFC Information for specific makes

  • P1EFC BUICK Battery Charger Control Module System Voltage Low Voltage
  • P1EFC CADILLAC Battery Charger Control Module System Voltage Low Voltage
  • P1EFC CHEVROLET Battery Charger Control Module System Voltage Low Voltage
  • P1EFC GMC Battery Charger Control Module System Voltage Low Voltage
  • P1EFC SATURN Battery Charger Control Module System Voltage Low Voltage

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Related Information

P1EFC Comments

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