Invalid Data Received From Fuel Level Sensor Module
The U0437 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Fuel Level Sensor Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $200 - $800 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- Fuel gauge reading incorrectly
- Fuel gauge stuck at one position
- Low fuel warning not activating
- Range estimation inaccurate
Probable Causes (Ranked by Likelihood)
- Failed fuel level sending unit Very High
- Fuel level sensor float stuck High
- CAN bus data error from fuel module Moderate
- Fuel tank deformation affecting float Low
Step-by-Step Diagnostic Procedure
-
Check fuel level sender resistance values
-
Test fuel gauge with external signal
-
Scan fuel module for codes
-
Inspect fuel tank for deformation
Frequently Asked Questions
Can I drive with U0437?
Yes, but track mileage manually to avoid running out of fuel.
What causes U0437?
Usually a failed fuel level sending unit or stuck float in the fuel tank.
How much does U0437 cost to fix?
Typically $200 to $800. The fuel pump assembly often includes the sender.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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