# Power Consumption Statistics Error Codes > **NOTE** > > This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). ## 4600101 Service Connection Failure **Error Message** Failed to connect to the service. **Description** This error code is reported if a service connection failure occurs. **Possible causes** 1. The system service stops running. 2. The internal communication of system services is abnormal. **Solution** Check whether the system services are running properly. 1. Run the following command on the console to view the current system service list: ```bash > hdc shell hidumper -ls ``` 2. Check whether **BatteryStatisticsService** is included in the system service list.