What to do if MTU Engine does not turn when starter is actuated?
- DDaniel JonesSep 12, 2025
If the MTU Engine doesn't turn when starting, possible causes include a low or faulty battery (charge or replace it), faulty cable connections (check if they are properly secured), defective engine cabling or starter (check cable connections), loose plug connections on the Engine Control Unit or Engine Interface Module (check connections), a defective fuse F1 in the engine wiring harness (check and replace if needed, then restart), or a blocked running gear.