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Home >> Lexus >> 2012 >> HS 250h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid Control System (Diagnostic Codes) >> Hybrid Control System >> DTC P0A1B-788: Drive Motor "A" Control Module >> Description
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DTC P0A1B-788: Drive Motor "A" Control Module: Description

If the inverter with converter assembly (MG ECU) is reset due to a problem with the power source in the inverter, the hybrid vehicle control ECU will set this DTC.

HINT: 

The term "drive motor A" indicates MG2.

DTC No. INF Code DTC Detection Condition Trouble Area
P0A1B 788 Error in reset signal from power source IC
  • Wire harness or connector
  • Hybrid vehicle transaxle assembly
  • Inverter with converter assembly