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Home >> Toyota >> 2025 >> Prius Plug-In Hybrid SE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Hybrid Battery System (HEV) - Diagnostic Codes (2 Of 2), Symptom Tests & Circuit Tests) >> HYBRID BATTERY SYSTEM (for M20A-FXS) >> DTC P0E2D-00: Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance [12/2022 - ] >> Description

DTC P0E2D-00: Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance [12/2022 - ]: Description

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The battery ECU assembly detects the voltage of each HV battery cell. The battery ECU assembly monitors its internal HV battery cell voltage detection circuits to detect malfunctions. If the battery ECU assembly detects a malfunction it will store this DTC.

HINT: 

If this DTC is output, it will be necessary to replace the battery ECU assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate DTC Output from Priority Note
P0E2D-00 Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance The battery ECU assembly detects a malfunction of its internal HV battery cell voltage detection circuits.
(1 trip detection logic)
  • Battery ECU assembly
  • HV battery
Comes on Master Warning:
Comes on
HV Battery A SAE Code: P0E2D