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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 98 (Safety Connect System - Diagnostic Codes & Symptom Tests (Hybrid)) >> SAFETY CONNECT SYSTEM (for HV Model) >> DTC B15C4: Airbag Signal Malfunction/Not Input [04/2018 - 08/2020] >> Description

DTC B15C4: Airbag Signal Malfunction/Not Input [04/2018 - 08/2020]: Description

WARNING: This page is about a different variant/trim than selected.

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

DTC No. Detection Item DTC Detection Condition Trouble Area
B15C4 Airbag Signal Malfunction/Not Input DCM (Telematics Transceiver) detects an error in signals from airbag ECU assembly when power switch is on (IG).
  • Airbag system
  • Wire harness or connector
  • Airbag ECU assembly
  • DCM (Telematics Transceiver)