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DTC B278C: Lost Communication with Power Source Control [01/2017 - 05/2023]: Description

When an internal malfunction is detected in the certification ECU (smart key ECU assembly), this DTC will be output. This DTC is also stored as a past DTC.

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