Invalid Data Received From Secondary Air Injection Module
The U0482 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Secondary Air Injection Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $200 - $700 (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
- Check engine light on during warmup
- Air pump running too long
- Air pump not running at all
- Failed emissions test
Probable Causes (Ranked by Likelihood)
- Air pump relay failure Very High
- Secondary air valve stuck High
- CAN bus data error Moderate
- Air pump motor wearing out Low
Step-by-Step Diagnostic Procedure
-
Check air pump operation during cold start
-
Test air injection valve
-
Scan air module for codes
-
Inspect air pump relay
Frequently Asked Questions
Can I drive with U0482?
Yes. This mainly affects cold-start emissions.
What causes U0482?
Usually a stuck air valve or failing air pump.
How much to fix?
Typically $200 to $700.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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