ASC SYSTEM FAIL-SAFE CHART


  1. ASC System

    The stereo component equalizer assembly stores DTCs and freeze frame data and stops sound output if it detects any of the following abnormalities.

    Item Abnormality Detection Condition Fail-safe Control DTC Output Return Condition
    CAN communication malfunction Communication with skid control ECU (brake actuator assembly) interrupted Sound output is stopped

    U0122

    (Freeze frame data stored)

    		 Signals are received normally and communication returns to normal
    Communication with main body ECU (multiplex network body ECU) interrupted Sound output is stopped

    U0142

    (Freeze frame data stored)

    		 Signals are received normally and communication returns to normal
    Communication with ECM interrupted Sound output is stopped

    U0100

    (Freeze frame data stored)

    		 Signals are received normally and communication returns to normal
    Speaker connection malfunction Open circuit detected for 0.15 seconds or more while sound is output Sound output is stopped

    B1360

    (Freeze frame data stored)

    		 Open circuit is not detected for 0.15 seconds or more and the malfunctioning part returns to normal
    Open circuit detected for 0.15 seconds or more while sound is output Sound output is stopped B1363 (Freeze frame data stored) Open circuit is not detected for 0.15 seconds or more and the malfunctioning part returns to normal
    ECU internal malfunction

    • The IG power source voltage to the CPU of the stereo component equalizer assembly is 0.5 V or less

    • Sound output IC malfunction

    		 Sound output is stopped

    B1362

    (Freeze frame data stored)

    		 The IG power source voltage to the CPU of the stereo component equalizer assembly is 2.2 V or more for 0.5 seconds or more and the malfunctioning part returns to normal