DTC B15C4: Airbag Signal Malfunction/Not Input [11/2018 - 10/2019]: Description

If the DCM (Telephone Transceiver Assembly) detects an error in communication between the DCM (Telephone Transceiver Assembly) and the airbag ECU assembly as a result of the DCM (Telephone Transceiver Assembly) self check, this DTC will be set.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15C4	Airbag Signal Malfunction/Not Input	DCM (Telephone Transceiver Assembly) detects an error in signals from airbag ECU assembly when ignition switch is ON.	Airbag system Harness or connector Airbag ECU assembly DCM (Telephone Transceiver Assembly)