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DTC codes / BMW codes / P1449

P1449 · BMWDiagnostic Module Tank Leakage DM-TL Pump Too High

P1449 on BMW vehicles indicates that the Diagnostic Module Tank Leakage (DM-TL) pump is reporting a signal that is too high, meaning the pump's electrical circuit is drawing excessive current or the pump itself is failing. The engine control module detects this out-of-range condition during its evaporative emission system self-test and stores the fault.

SystemPowertrain
Code typeBMW specific
SeverityLow
Fix difficultyIntermediate
AreaAuxiliary emission controls
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