TROUBLESHOOTING/ Monitor Unit 4. Select controller version by using keys 1 and 2. Push the confirm key. Then, the controller version screen appears. NOTE: The version of ECM is not displayed. NOTE: When pushing the back key, return to the previous screen. 5. Push key 6, and the primary screen appears. T1V5-05-01-083 Confirm Key Back Key Key 1 Key 2 T1V5-05-01-122 Back Key Key 6 T1V1-05-01-123 Primary Screen T5-2-37