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 assembly interrupted Sound output is stopped

    U0129

    (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 hybrid vehicle control ECU assembly interrupted Sound output is stopped

    U0293

    (Freeze frame data stored)

    		 Signals are received normally and communication returns to normal
    Abnormal vehicle speed signal sent from skid control ECU assembly Sound output is stopped

    U0418

    (Freeze frame data stored)

    		 Signals are received normally and communication returns to normal
    Abnormal timestamp sent from main body ECU (multiplex network body ECU) Not applicable

    U0422

    (Freeze frame data stored)

    		 Signals are received normally and communication returns to normal

    • Abnormal shift position signal sent from hybrid vehicle control ECU assembly

    • Abnormal gear position signal from hybrid vehicle control ECU assembly

    • Abnormal accelerator pedal opening angle signal from hybrid vehicle control ECU assembly

    		 Sound output is stopped

    U0594

    (Freeze frame data stored)

    		 Signals are received normally and communication returns to normal
    Speaker connection malfunction When vehicle sound switch volume is set to medium or higher and sounds are being output, an open is detected for 0.15 seconds or more Sound output is stopped

    B1360

    (Freeze frame data stored)

    		 When vehicle sound switch volume is set to medium or higher and sounds are being output, an open is not detected for 0.15 seconds or more
    Switch connection malfunction The VSLI terminal voltage to the CPU of the stereo component equalizer assembly is 4.5 V or more Sound output is stopped

    B1361

    (Freeze frame data stored)

    		 The VSLI terminal voltage to the CPU of the stereo component equalizer assembly is less than 4.0 V and connection 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 and the malfunctioning part returns to normal