故障现象一辆2009款手动挡奇瑞A3轿车,行驶里程约为4万km,当点火开关处在0N位时,仪表盘上的ABS故障报警灯常亮。故障诊断经过验证,确实存在上述现象。连接故障检测仪读取ABS故障代码,有两个故障代码C1102、C2402,其含义分别为ABS电源低故障和ABS泵电动机继电器或电动机电源故障。故障代码可以清除,但是上述两故障代码会再次出现。读取ABS数据流,发现ABS电源电压只有9.3 V,而测量蓄电池电压为12.7 V。正常情况下,上述两电压值应基本一致。 Symptoms A 2009 model manual block Chery A3 sedan, mileage is about 40,000 km, when the ignition switch is 0N bit, the dashboard ABS fault alarm light is always on. Fault diagnosis has been verified, there is indeed the above phenomenon. The connection fault detector reads the ABS fault code with two fault codes C1102 and C2402, the meaning of which is respectively ABS low power fault and ABS pump motor relay or motor power failure. The fault code can be cleared, but the above two fault codes will appear again. ABS data stream read and found ABS power supply voltage of only 9.3 V, while measuring the battery voltage of 12.7 V. Under normal circumstances, the above two voltage values ​​should be basically the same.