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Home >> Audi >> 2017 >> S8 >> Repair and Diagnosis >> External Pages >> Different car >> Section 398 (Hybrid Battery System (Diagnostic Codes (P0A75-123 - U029A-123))) >> Hybrid Battery System >> DTC U029A-123: Lost Communication with Hybrid Battery Pack Sensor Module [08/2013 - ] >> Monitor Description

Monitor Description

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

If the power management control ECU detects problem with serial communication with the battery smart unit, it will illuminate the MIL and stores a DTC.

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