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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 P0A1F-150: Battery Energy Control Module >> Description

DTC P0A1F-150: Battery Energy Control Module: Description

The hybrid vehicle control ECU alerts the driver and performs fail-safe control based on error signals sent from the battery smart unit.

DTC NO. INF Code DTC Detection Condition Trouble Area
P0A1F 150 Power source voltage of the battery smart unit drops during precharge.
  • Battery smart unit
  • Wire harness or connector
  • IGCT fuse
  • IGCT No. 2 fuse
  • IGCT relay
  • Auxiliary battery