Invalid Data Received From Catalyst Temperature Module
The U0483 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Catalyst Temperature Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $150 - $500 (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
- Catalyst temp reading erratic
- Check engine light with catalyst codes
- Converter overheat warning
- Emission control system fault
Probable Causes (Ranked by Likelihood)
- Catalyst temp sensor failure Very High
- Sensor wiring damage High
- CAN bus data error Moderate
- Exhaust leak near sensor Low
Step-by-Step Diagnostic Procedure
-
Test catalyst temp sensor
-
Check sensor wiring
-
Scan catalyst module
-
Inspect for exhaust leaks
Frequently Asked Questions
Can I drive with U0483?
Yes. Catalyst monitoring is affected but driving is safe.
What causes U0483?
Usually a failed catalyst temperature sensor.
How much to fix?
Typically $150 to $500.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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