← Back to OBD2 List
Genel OBD2
🟡 Medium
Genel OBD2
U0109
Lost Communication with Fuel Pump Control Module
The U0109 diagnostic trouble code (DTC) indicates a Lost Communication with Fuel Pump Control Module. This signifies a failure in the CAN-bus communication network between various vehicle control modules. This anomaly was detected during the ECM's internal diagnostic self-test, indicating that the system is unable to maintain steady-state operation.
Brand
Genel OBD2
Fault Code
U0109
Severity
🟡 Medium
Models
Tüm marka ve modeller
🛠️ Diagnostic Overview
Difficulty Level
🛠️🛠️
Medium (Moderate)
Estimated Time
⏱️ 1-2 Hours
🧰 Required Tools
- ✓ Socket Wrench & Hand Tools
- ✓ Replacement Fuses
⚠️ Possible Causes
- Faulty FPCM
- Blown fuse
- Wiring fault
- CAN bus issue
🔧 Recommended Fixes
- Check FPCM fuse
- Inspect wiring
- Replace FPCM
🚗 Commonly Affected Vehicles
🏭 Genel OBD2 – Other Common Fault Codes