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Home >> Lexus >> 2006 >> RX 400h AWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (P310) - RX400H - DTC P0A7A-309 Through P0AA7-727 >> DTC P0A94-553 DC / DC Converter Performance >> Description

DTC P0A94-553 DC / DC Converter Performance: Description

Refer to the description of the boost converter. (See DTC P0A94-442 DC / DC CONVERTER PERFORMANCE  )

DTC DETECTION CONDITION - TROUBLE AREA CHART

DTC No. INF Code DTC Detection Condition Trouble Area
P0A94 553 Boost converter fail (FCV) signal detection (boost converter overheating)
  • Wire harness or connector
  • Inverter cooling system
  • Water pump w/ motor & bracket assembly
  • HV transaxle assembly
  • Rear traction motor w/ transaxle assembly
  • w/ converter inverter assembly (MG ECU)
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