Question about Hyundai Accent
P1401 - DMTL Malfunction
The diagnosis module comprises an electromechanically driven pump together with a change-over valve and heater. The engine management system measures the pump's electrical current consumption while pumping air into the canister and fuel tank to check the system's leakage.
If the electrical current consumption is over the threshold value specified before in the memory, this means that there is a tank-system leak.
2. DM-TL operating conditions.
(1) DM-TL monitoring operation starts only after all the conditions below are met.
A. Vehicle soaking over 4 hours and 30 minutes.
B. Engine coolant temperature over 2.3°C (36.14°F) when starting.
C. Ambient temperature between 1.5°C (34.7°F) and 40.5°C (104.9°F).
D. 6.4l or more gasoline in the fuel tank.
E. Over 20 minutes driving after starting.
F. During Air Bag is not working.
(2) And also you can check the DM-TL operation with simulation mode of HI-SCAN.
Posted on Mar 26, 2011
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Posted on Jan 02, 2017
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Aug 31, 2011 | 2002 Hyundai Accent
Jul 11, 2011 | 2002 Hyundai Accent
Diagnostic: "module Tank Leakage (DMTL) Failure"
1) Open Or Short Circuit Condition
2) Poor Electrical Conection
3)Faulty DMTL Module Faulty
Read more: http://wiki.answers.com/Q/What_is_a_p1401_code_on_a_2002_hyundai_accent#ixzz1Ep0tl2tO Call your service dept on the phone as I have heard they dont use the code...better call dealership for free and find out. Hoped I helped you in the right direction
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