Hi5 controllermaintenanceHi5 Troubleshooting Manual1. Troubleshooting1.1. Troubleshooting Solution1.1.51. E02541 Drive unit control voltage dropOn this page1.1.51. E02541 Drive unit control voltage drop1.1.51. E02541 Drive unit control voltage drop Previous error code: E0114 Drive unit control voltage drop 1.1.51.1. Outline1.1.51.2. Causes and examine methods