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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Lin Communication System (Except Hybrid) - Diagnostic Codes) >> LIN COMMUNICATION SYSTEM (for Gasoline Model) >> DTC B278C: Lost Communication with Power Source Control [06/2018 - ] >> Description

DTC B278C: Lost Communication with Power Source Control [06/2018 - ]: Description

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When an internal malfunction is detected in the certification ECU (smart key ECU assembly), this DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
B278C Lost Communication with Power Source Control An internal malfunction occurs in the certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly)