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Home >> Lexus >> 2010 >> HS 250h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control (Diagnostic Codes (P0343-747 - P0A78-282) >> Hybrid Control System >> DTC P0A0F-204: Engine Failed to Start; DTC P0A0F-205: Engine Failed to Start; DTC P0A0F-206: Engine Failed to Start; DTC P0A0F-524: Engine Failed to Start; DTC P0A0F-525: Engine Failed to Start >> Description

DTC P0A0F-204: Engine Failed to Start; DTC P0A0F-205: Engine Failed to Start; DTC P0A0F-206: Engine Failed to Start; DTC P0A0F-524: Engine Failed to Start; DTC P0A0F-525: Engine Failed to Start: Description

If an engine malfunction occurs, an engine malfunction signal is sent from the ECM portion of the hybrid vehicle control ECU to the HV portion of the hybrid vehicle control ECU. When the hybrid vehicle control ECU receives this signal, it sets a DTC and performs fail-safe control.

DTC No. INF Code DTC Detection Condition Trouble Area
P0A0F 204 Signal indicating abnormality input from the ECM portion of the hybrid vehicle control ECU (abnormal engine output)
  • SFI system
  • Hybrid vehicle control ECU
205 Signal indicating abnormality input from the ECM portion of the hybrid vehicle control ECU (engine is unable to start)
206 Signal indicating abnormality input from the ECM portion of the hybrid vehicle control ECU (engine component malfunction)
524 Signal indicating abnormality input from the ECM portion of the hybrid vehicle control ECU (NE signal error)
525 Signal indicating abnormality input from the ECM portion of the hybrid vehicle control ECU (GI signal error)