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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 93 (Motor Generator Control System (2WD) - Diagnostic Codes (2 Of 4)) >> MOTOR GENERATOR CONTROL SYSTEM (for 2WD) >> DTC P0A94-9E: DC/DC Converter Stuck On; DTC P0D33-19: DC/DC Converter Circuit Current Above Threshold [12/2019 - 11/2023] >> Description

DTC P0A94-9E: DC/DC Converter Stuck On; DTC P0D33-19: DC/DC Converter Circuit Current Above Threshold [12/2019 - 11/2023]: Description

WARNING: This page is about a different variant/trim than selected.

For a description of the boost converter.

Refer to DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A94-9E DC/DC Converter Stuck On Boost converter fail signal detected (circuit malfunction)
(1 trip detection logic)
  • Inverter cooling system
  • Cooling fan system
  • Grille shutter system
  • Wire harness or connector
  • Motor cable
  • Hybrid vehicle transaxle assembly
  • PCU fuse
  • Inverter with converter assembly
  • Hybrid vehicle control ECU
Comes on Master Warning:
Comes on
P0D33-19 DC/DC Converter Circuit Current Above Threshold Boost converter fail signal detected:
A malfunction is detected in any of the boost converter components (inverter, hybrid vehicle transaxle, motor generator control ECU, etc.).
(1 trip detection logic)
  • Inverter cooling system
  • Cooling fan system
  • Grille shutter system
  • Wire harness or connector
  • Motor cable
  • Hybrid vehicle transaxle assembly
  • PCU fuse
  • Inverter with converter assembly
  • Hybrid vehicle control ECU
Comes on Master Warning:
Comes on
RELATED DATA LIST

DTC No. Data List
P0A94-9E
P0D33-19
Emergency Inverter Shut Down