U0169
NetworkModule Communicationlow severityLost Communication with Fuel Level Control Module
What U0169 Means
Cannot communicate with the fuel level sender or fuel gauge control module.
Symptoms
- Fuel gauge not reading
- Fuel level stuck at one position
- Low fuel warning inaccurate
- Range calculator not working
Common Causes
- Fuel level module failure
- CAN bus wiring
- Module power loss
- Fuel sender failure
- Fuse blown
Diagnostic Steps
- Check fuel gauge module fuse
- Test power and ground
- Check CAN wiring
- Test fuel level sender resistance
- Inspect fuel tank wiring connector
Where to start: Check fuses and fuel sender. Fuel sender is most common failure point.
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