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Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (P310) - RX400H - DTC P0A7A-309 Through P0A94-589 >> DTC P0A94-547 DC / DC Converter Performance; DTC P0A94-548 DC / DC Converter Performance >> Description

DTC P0A94-547 DC / DC Converter Performance; DTC P0A94-548 DC / DC Converter Performance: Description

Refer to the description of the boost converter. (See DESCRIPTION )

If the boost converter detects a circuit malfunction or overvoltage, it transmits this information to the OVL terminal of the MG ECU via the boost converter overvoltage signal line.

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. INF Code DTC Detection Condition Trouble Area
P0A94 547 Boost converter overvoltage signal detection (overvoltage by MG ECU malfunction)
  • HV relay assembly
  • w/ converter inverter assembly (MG ECU)
548 Boost converter overvoltage signal detection (overvoltage by inverter malfunction)
  • HV relay assembly
  • w/ converter inverter assembly (MG ECU)