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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 129 (Motor Generator Control System - Diagnostic Codes (4 Of 5)) >> MOTOR GENERATOR CONTROL SYSTEM (for THS-HEV Model) >> DTC P0E51-2A: DC/DC Converter Current Sensor Signal Stuck In Range [10/2022 - ] >> Description

DTC P0E51-2A: DC/DC Converter Current Sensor Signal Stuck In Range [10/2022 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus RX 350h, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.

For a description of the boost converter.

Refer to DTC P0CA3-00: DC/DC Converter Step Up Voltage Performance [10/2022 - ] 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate DTC Output from Priority Note
P0E51-2A DC/DC Converter Current Sensor Signal Stuck In Range The value of the reactor current sensor does not change.
(1 trip detection logic)
  • No. 1 traction battery device box assembly
  • Hybrid motor control inverter assembly
  • Service plug grip
  • Floor under wire
  • Hybrid vehicle control ECU
  • PCU FR/PCU fuse
  • Wire harness or connector
 Comes on Master Warning:
Comes on		 Motor Generator A SAE Code:
P0E52
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