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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 P0A37-258 Through P0A79-812 >> DTC P0A78-504 Drive Motor "A" Inverter Performance >> Description

DTC P0A78-504 Drive Motor "A" Inverter Performance: Description

Refer to the description of the inverter. (See DTC P0A78-266 DRIVE MOTOR "A" INVERTER PERFORMANCE: DTC P0A78-267 DRIVE MOTOR "A" Inverter Performance  )

DIAGNOSTIC TROUBLE CODE CHART

DTC No. INF Code DTC Detection Condition Trouble Area
P0A78 504 Motor inverter overvoltage signal detection (overvoltage by HV transaxle assembly malfunction)
  • Wire harness or connector
  • HV relay assembly
  • w/ converter inverter assembly (MG ECU)
  • Rear traction motor w/ transaxle assembly
  • Hybrid vehicle transaxle assembly