P1EF0 - Battery Charger High-Voltage Converter 1 Output Power Regulation Performance

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

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

Possible symptoms

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

P1ef0 Description

The hybrid/EV powertrain control module 2 and battery charger control module monitor the battery charger high-voltage output and current output and ensures it is in the proper range and there is not a resistive short in the charging bus.
OBDII Code P1ef0 - Battery Charger High-Voltage Converter 1 Output Power Regulation Performance - AutoCodes.com

P1EF0 Information for specific makes

  • P1EF0 BUICK Battery Charger High-Voltage Converter 1 Output Power Regulation Performance
  • P1EF0 CADILLAC Battery Charger High-Voltage Converter 1 Output Power Regulation Performance
  • P1EF0 CHEVROLET Battery Charger High-Voltage Converter 1 Output Power Regulation Performance
  • P1EF0 GMC Battery Charger High-Voltage Converter 1 Output Power Regulation Performance
  • P1EF0 SATURN Battery Charger High-Voltage Converter 1 Output Power Regulation Performance

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P1EF0 Comments

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