Invalid Data Received From Oil Condition Module
The U0478 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Oil Condition Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $100 - $400 (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
- Oil life monitor reading incorrect
- Oil condition sensor fault
- Oil change interval not calculated
- Oil quality warning message
Probable Causes (Ranked by Likelihood)
- Failed oil condition sensor Very High
- Sensor contaminated High
- CAN bus data error Moderate
- Recent oil change not reset Low
Step-by-Step Diagnostic Procedure
-
Reset oil life monitor
-
Check oil condition sensor
-
Scan oil module for codes
-
Verify oil was recently changed
Frequently Asked Questions
Can I drive with U0478?
Yes. Track oil changes manually by mileage.
What causes U0478?
Often just needs an oil life monitor reset after a change.
How much to fix?
Typically $100 to $400. Reset may be free.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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