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U049E

Invalid Data Received From Direct Ozone Reduction Catalyst Temperature Sensor

What this code means

Diagnostic trouble code U049E indicates: Invalid Data Received From Direct Ozone Reduction Catalyst Temperature Sensor. It was set by your vehicle's onboard diagnostics system and will typically keep the check engine light on until it's addressed.

ECUs that can switch off U049E

U049E is part of the Lambda / O2 OFF group. These ECUs support Lambda / O2 OFF, which switches it off:

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