🛠️ Common Issues with ISX CM871 ECMs (2008-2010) 🚛. Have an ISX CM871 ECM (2008-2010)? They’re well-made but have 2 common problems! ⚠️. 1️⃣ Truck shutdowns or won’t start? Check code 1117: If terminals and connections are fine, the issue is likely the ECM. 2️⃣ Actuator failures: Especially the fan actuator. If you're seeing erratic fan control, the ECM might be the problem. 💬 Comment below with any Cummins ISX issues, and I’ll help you troubleshoot! 👇👉 Follow me for more tips! #trucks #ECM