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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (2GR-FXE) - Diagnostic Codes (4 Of 7) >> Hybrid Control System >> DTC P0A94-124: DC / DC Converter Performance; DTC P0A94-547: DC / DC Converter Performance [02/2014 - 11/2016] >> Description

DTC P0A94-124: DC / DC Converter Performance; DTC P0A94-547: DC / DC Converter Performance [02/2014 - 11/2016]: Description

For a description of the boost converter.

Refer to DESCRIPTION

If a malfunction occurs in the boost converter, the MG ECU detects it and transmits this information to the power management control ECU.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A94-124 DC / DC Converter Performance Boost converter overvoltage signal detected (overvoltage due to MGR ECU malfunction):
Overvoltage is detected before boosting.*
(1 trip detection logic)
  • Wire harness or connector
  • Inverter with converter assembly
Comes on Master Warning Light:
Comes on
P0A94-547 DC / DC Converter Performance Boost converter overvoltage signal detected (overvoltage due to MG ECU malfunction):
Overvoltage is detected before boosting.*
(1 trip detection logic)
  • Wire harness or connector
  • Inverter with converter assembly
Comes on Master Warning Light:
Comes on

*: The MG ECU, which is built into in the inverter with converter assembly, is suspected as a main cause of the malfunction.

RELATED DATA LIST

DTC No. Data List
P0A94-124 VL-Voltage before Boosting
P0A94-547