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故障现象一辆行驶里程约为7.2万km的2011款迈腾车,行驶中CD机突然失去声音。故障诊断接车后首先验证故障现象,打开CD电源开关,旋转音量调节旋钮把音量调大,仍无声音;检查所有按键,设置功能正常,因此初步判断CD机损坏;找来同款CD机,安装后试车,故障现象依旧。连接VAS5052A,读取网关列表,在“56-收音机”中存储有故障代码“电话收发器(车载蓝牙设备)无信号/通信(静态)”;在“19-数据总线诊断接口”中存储有故障代码“电话收发器(车载蓝牙设备)无信号/通信(静态)”和故障代码“数字音响系统控制单元(J525)无信号/通信
Symptoms A mileage of about 7.2 million km 2011 MAGOTAN car, moving CD machine suddenly lost its voice. Troubleshooting After the car first verify the symptoms, open the CD power switch, turn the volume knob to adjust the volume up, there is still no sound; check all the keys, set the function is normal, so the initial judge CD damage; After installation test, the fault still exists. Connect to the VAS5052A, read the gateway list, store the error code in ”56-RADIO “ ”Phone transceiver (onboard Bluetooth device) no signal / communication “Fault code stored ” Telephone transceiver (onboard Bluetooth device) No signal / communication (static) “and error code ” Digital sound system control unit (J525) No signal / communication