Engine-Codes - Generic - P1449

P1449 Code - Diagnostic Module Tank Leakage Pump Too High

- Code Popularity: 48,136 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1449?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Diagnostic Module Tank Leakage (DMTL) Pump
  • Diagnostic Module Tank Leakage Pump harness is open or shorted
  • Diagnostic Module Tank Leakage Pump circuit poor electrical connection
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How to Fix the DTC P1449?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1449 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1449 Code Mean?

The evaporative system monitoring permits the detection of leaks in the evaporative system with a diameter of 0.02 inches and up. By means of a Diagnostic Module Tank Leakage (DMTL), an electrically actuated pump located at the atmospheric connection of the evaporative canister, a pressure test of the evaporative system is performed.
During the Reference Leak Measurement, the electrically actuated pump delivers through the reference restriction. The engine-management system measures the pump's electrical current consumption in this section.
During the Leak Measurement, the electrically actuated pump delivers through the charcoal canister into the fuel-tank system. The pressure in the evaporative system may be up to 2.5 kPa depending on the fuel level in the tank. The engine-management system measures the pump's electrical current consumption. A comparison of the currents of the reference leak measurement and the leak measurement is an indication of the leakage in the tank.

P1449 Code - Diagnostic Module Tank Leakage Pump Too High

Need more Information on the Code?

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Code P1449 Information for Specific Makes

  • P1449 Audi Catalyst Temperature Sensor 2 Circuit Open/Short to B+
  • P1449 BMW Diagnostic Module Tank Leakage Pump Too High  
  • P1449 Ford EVAP System Unable To Hold Vacuum
  • P1449 Honda Battery Module Deterioration
  • P1449 KIA Canister Drain Cut Valve Open or Short
  • P1449 Mazda Canister Drain Cut Valve Open Or Short
  • P1449 MINI Diagnostic Module Tank Leakage Pump Too High
  • P1449 Suzuki EVAP Purge Control Valve Malfunction Stuck Closed
  • P1449 Volkswagen Catalyst Temperature Sensor 2 Circuit Open/Short to B+

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