P1749

Torque Converter Clutch System Performance

DTC P1749, sometimes indicated as P174900 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the causing torque converter clutch system performance.

  • P1749: Torque Converter Clutch System Performance

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • 37143620371511 - ELECTRICAL SYSTEM
    AUDI: Incorrect coding in control module after software update (dtc P1749 stored in tcm)
  • 37 14 36 2037151 - ELECTRICAL SYSTEM:SOFTWARE
    AUDI: The self-coding function of the tcm may not complete during a software update. Incorrect coding in control module after software update (dtc P1749 stored in tcm)
  • A371436 2037151- - POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)
    AUDI: Dtc P174900 (automatic transmission control module incorrect code) appears in the transmission control module (tcm) after an svm update. The self-coding function of the tcm may not complete during a software update.
Previous Code: P1748 | Next Code: P1751