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故障现象:一辆2015年凯迪拉克正常行驶中,ICS黑屏无法正常工作。故障诊断:接车后开始维修,首先使用通用诊断仪GDS进行检测,测得以下故障码:B2470 04移动电话天线回路◆B3979 00未从HVAC控制模◆块收到环境标识符B0024 04乘客膝盖气囊展开◆回路B1277 04麦克风输入信号电◆路B127C 04麦克风2输入信号◆电路
Symptoms: a 2015 Cadillac normal driving, ICS black screen does not work. Fault Diagnosis: After the car is started to be repaired, the GDS is used to detect the following fault codes: B2470 04 Antenna loop of mobile phone ◆ B3979 00 No HVAC control module ◆ Environment identifier B0024 04 Passenger knee air bag Expand ◆ Loop B1277 04 Mic Input Signal ◆ B127C 04 Microphone 2 Input Signal ◆ Circuit