Diagnostic Code for my 2002 Hyundai Accent was P1401. What does it mean?!?

jcabler24

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Check Engine Light came on. I went to AutoZone and they tested and got the code P1401. The guys at AutoZone have never seen it before it read.

Definition
Diagnostic Module Tank Leakage (DMTL) failure

Probable Cause
1. Open or Short Circuit Condition
2. Poor Electrical Connection
3. Faulty DMTL- Module Faulty

I tried disconnecting the battery then reconnecting it. Check Engine Light still there. Car is running fine.

Someone Help. Needs to be inspected soon!
 
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