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Home >> Toyota >> 2006 >> Prius >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> P112 Hybrid Vehicle Control - DTC P0A94 - P3226, U0100 - U0146 >> DTC P0A94-554 DC / DC Converter Performance; DTC P0A94-555 DC / DC Converter Performance; DTC P0A94-556 DC / DC Converter Performance >> Description

DTC P0A94-554 DC / DC Converter Performance; DTC P0A94-555 DC / DC Converter Performance; DTC P0A94-556 DC / DC Converter Performance: Description

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

If the boost converter has a circuit malfunction, internal short, or overheats, the boost converter transmits that information to the FCV terminal of the HV control ECU via the boost converter fail signal line.

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. INF Code DTC Detection Condition Trouble Area
P0A94 554 Boost converter fail (FCV) signal detection (over current by HV control ECU malfunction)
  • Wire harness or connector
  • HV transaxle assembly
  • Hybrid vehicle motor
  • Hybrid vehicle generator
  • HV control ECU
  • Inverter with converter assembly
P0A94 555 Boost converter fail (FCV) signal detection (over current by inverter assembly malfunction)
  • Wire harness or connector
  • HV transaxle assembly
  • Hybrid vehicle motor
  • Hybrid vehicle generator
  • HV control ECU
  • Inverter with converter assembly
P0A94 556 Boost converter fail (FCV) signal detection (over current by HV transaxle assembly malfunction)
  • Wire harness or connector
  • HV transaxle assembly
  • Hybrid vehicle motor
  • Hybrid vehicle generator
  • HV control ECU
  • Inverter with converter assembly