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Home >> Toyota >> 2019 >> Prius Prime Advanced >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Plug-In Charge Control System - Diagnostic Codes >> Plug-In Charge Control System >> DTC P1CA4-00: Charger Pre-charging Malfunction [09/2016 - ] >> Description
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DTC P1CA4-00: Charger Pre-charging Malfunction [09/2016 - ]: Description

The charge control ECU built into the electric vehicle charger assembly monitors its internal operation. If it detects a precharge malfunction, it stores a DTC. If these DTCs are output, replace the electric vehicle charger assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P1CA4-00 Charger Pre-charging Malfunction After plug-in charging is performed, precharge has not been completed for a certain amount of time.
(1 trip detection logic)
Electric vehicle charger assembly Comes on Master Warning Light:
Comes on