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Home >> Lexus >> 2012 >> CT 200h F Sport >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Battery System (Diagnostic Codes (P0A7F-123 - U029A-123)) >> Hybrid Battery System >> DTC U029A-123: Lost Communication with Hybrid Battery Pack Sensor Module >> Monitor Description

Monitor Description

If the power management control ECU (HV CPU) detects problem with serial communication with the battery smart unit, it will illuminate the MIL and set a DTC.

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