Were dmtl pump - 2000 Hyundai Accent

Its the a/c code for the evaporator on the a/c unit it may need cleaning or the sensor is faulty, usual comes on if not able to evaporate. it can also be the charcoal canister and DMTL pump are located on the right side of the fuel tank.you would need to have the code read to find out what its for. usually the a/c as a/c needs to be checked ever 2-3 years.

Code 1402 is a problem with the DMTL motor and 1403 is the circuit for the valve.
It involves the fuel tank leak tester.

Faulty Diagnostic Module Tank Leakage (DMTL)
- Diagnostic Module Tank Leakage harness is open or shorted
- Diagnostic Module Tank Leakage circuit poor electrical connection
Read more: http://www.autocodes.com/p1403_hyundai.html#ixzz44VrYa4Tf

What part/parts are you trying to wire? is it the ignition system or the complete underhood wiring harness (all wires underehood)?
What is dmtl?

DMTL stands for Distributed Micro-Electromechanical Transmission Line, which is a Diagnostic Module.

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.

Diagnostic: "module Tank Leakage (DMTL) Failure"

Probale cause:

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

Iown 02 hyundai accent gl 1.6l. Had the problem twice. I used to over fill the tank until I had to spend close to $550.00 USD. The problem is when we overfill the tank. the carbon canister gets clogged and it damages a sensor in the assembly called "DMTL". Thia assy is located under the rear driver side of the car to the left and rear of the fuel tank. Once I replaced the carbon canister, sensor and filter the problem went away. if you let it go for a long time you eventually start smelling gas inside the car after fill ups. Good luck.

The primary causes of inability to attain high rpm are clogged exhaust (usually a catalytic converter) and low fuel pressure. This can also be caused by a malfunctioning air flow sensor or a mistimed camshaft

leak detection module solenoid valve circuit fault

Probable causes:
1) Open or Short circuit conditions
2) Failed Leak Detection Heater in DMTL

p1402 - dm-tl air pump motor is shorted or disconnected.

2000 model year accent is equipped with a new enhanced evaporative emission system. this new system is capable of measuring leaks as small as 0.020" diameter. the new system pressurizesthe evaporative emission system with a diagnostic module for tank leakage (dm-tl), while the previous model's system appliedengine vacuum through the purge valve to detect system leaks.

service information
vehicles that have the check engine light illuminated and have dtc p1401, p1402 and p1403 stored in the ecm should have their electrical systems diagnosed related to the appropriate dtc. these codes are not related in any way to an evaporative emission system leak. the conditions that set the diagnostic codes areas follows:
p1401 - dm-tl air pump motor current draw is higher or lower than expected (normal = 17-36 ma).
p1402 - dm-tl air pump motor is shorted or disconnected.
p1403 - dm-tl changeover valve is shorted or disconnected
perform the suggested repair
1. inspect for water in the dmtl by removing the 90° air inlet elbow and looking into the air chamber. if water or corrosion is present, replace the dm-tl p/n 31440-25500; air filterp/n 31453-25500; and pipe assembly p/n 31454-25500if corrosion is in the pipe. see detailed instructions on page3 for air filter replacement.
2. inspect for underbody coating sprayed into connector m52 at dm-tl. if underbody coating is present on the male or female connector, spray with electrical contact cleaner to remove the undercoating.

air filter (dm-tl) replacement instructions

1. disconnect the 90° elbow from the top of the dmtl and insert a clean rag into either the elbow or thedmtl inlet connector.
2. disconnect the dmtl electrical connector.
   
1. disconnect the 2 hoses at the front of the canister (caution: silicone hoses tear/puncture easily).
   
2. remove canister assembly and dm-tl as a unit (3 mounting nuts).
   
3. disconnect the 2 hoses from the metal transfer pipes.
   
4. remove the canister, air filter, and metal tube assembly from the canister protector by removing the 3 mounting nuts.
   
5. disconnect the hose at the air filter.
   
6. remove the air filter mounting nut and remove the air filter.
   
7. install a new air filter.
   
8. reassemble in reverse order.