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Home >> Toyota >> 2019 >> Prius Prime Premium >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Plug-In Charge Control System - Diagnostic Codes >> Plug-In Charge Control System >> DTC P1C28-19: Current after Boosting by PFC Boosting Circuit Circuit Current Above Threshold [09/2016 - ] >> DTC Summary
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DTC Summary

  1. MALFUNCTION DESCRIPTION 

    The charge control ECU built into the electric vehicle charger assembly monitors its internal operation. If it detects an overcurrent malfunction in the DC/DC converter of the electric vehicle charger assembly, it stores a DTC. If this DTC is output, check the plug-in charge state using a known good external power source. If a malfunction occurs again, replace the electric vehicle charger assembly.

    The cause of this malfunction may be one of the following:

    Malfunction in the vehicle side 

    • Electric vehicle charger assembly malfunction

    Malfunction except vehicle side 

    • External power source malfunction
  2. INSPECTION DESCRIPTION 
    GTY718449Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    System Diagram Range Inspection Content Reason
    *a Inspect the external power source by checking plug-in charge state using a known good external power source. External power source malfunction
    *b Replace electric vehicle charger assembly Electric vehicle charger assembly internal malfunction