Invalid Data Received From Anti-Theft Module
The U0498 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Anti-Theft Module. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $150 - $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
- Security light flashing rapidly
- Random alarm activations
- Key not always recognized
- Anti-theft preventing engine start intermittently
Probable Causes (Ranked by Likelihood)
- Anti-theft module data corruption Very High
- Key transponder intermittent High
- CAN bus interference Moderate
- Hood or door sensor triggering false alarms Low
Step-by-Step Diagnostic Procedure
-
Try spare key
-
Check hood and door sensors
-
Scan anti-theft module
-
Reset anti-theft system
Frequently Asked Questions
Can I drive with U0498?
Yes, but the vehicle may occasionally not start or alarm may sound randomly.
What causes U0498?
Often a weak key transponder or door/hood sensor triggering false signals.
How much to fix?
Typically $150 to $700.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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