U0169
Lost Communication with Fuel Level Control Module
2004-2007 Buick Rainier 4.2L I6
Low SeverityNetworkGeneric (SAE)
Description
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
Repair Notes
Check fuses and fuel sender. Fuel sender is most common failure point.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0169 on Other Vehicles
Common Questions
What does code U0169 mean on a 2004-2007 Buick Rainier?
U0169 stands for "Lost Communication with Fuel Level Control Module". Cannot communicate with the fuel level sender or fuel gauge control module.
What are the symptoms of U0169 on a Buick Rainier?
Common symptoms of U0169 include: Fuel gauge not reading, Fuel level stuck at one position, Low fuel warning inaccurate, Range calculator not working.
What causes U0169 on a 2004-2007 Buick Rainier?
Common causes of U0169 include: Fuel level module failure, CAN bus wiring, Module power loss, Fuel sender failure, Fuse blown.