1e41f4b71Sopenharmony_ci# Power Manager Error Codes 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci> **NOTE** 4e41f4b71Sopenharmony_ci> 5e41f4b71Sopenharmony_ci> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ci## 4900101 Service Connection Failure 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci**Error Message** 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ciFailed to connect to the service. 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci**Description** 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ciThis error code is reported if a service connection failure occurs. 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci**Possible Causes** 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ci1. The system service stops running. 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci2. The internal communication of system services is abnormal. 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ci**Procedure** 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ciCheck whether the system services are running properly. 26e41f4b71Sopenharmony_ci 27e41f4b71Sopenharmony_ci1. Run the following command on the console to view the current system service list: 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci ```bash 30e41f4b71Sopenharmony_ci > hdc shell hidumper -ls 31e41f4b71Sopenharmony_ci ``` 32e41f4b71Sopenharmony_ci 33e41f4b71Sopenharmony_ci2. Check whether **PowerManagerService** is included in the system service list. 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_ci## 4900102 System Shuting Down 36e41f4b71Sopenharmony_ci 37e41f4b71Sopenharmony_ci**Error Message** 38e41f4b71Sopenharmony_ci 39e41f4b71Sopenharmony_ciOperation failed. The system is shutting down. 40e41f4b71Sopenharmony_ci 41e41f4b71Sopenharmony_ci**Description** 42e41f4b71Sopenharmony_ci 43e41f4b71Sopenharmony_ciThis error code is reported when an operation failed during system shutting down. 44e41f4b71Sopenharmony_ci 45e41f4b71Sopenharmony_ci**Possible Causes** 46e41f4b71Sopenharmony_ci 47e41f4b71Sopenharmony_ciThe system is shutting down. 48e41f4b71Sopenharmony_ci 49e41f4b71Sopenharmony_ci**Procedure** 50e41f4b71Sopenharmony_ci 51e41f4b71Sopenharmony_ciMake sure that the operation is performed when the system is running properly. 52