P1EFD GMC - Battery Charger Power Efficiency

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)

P1efd Gmc Description

The battery charger will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is communicated from the battery charger to the hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for DTC information.
OBDII Code P1efd Gmc - Battery Charger Power Efficiency - AutoCodes.com

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P1EFD GMC Comments

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