P1740 OBD Code Definition:
P1740 TCC Or OD Solenoid Performance
P1740 OBD Code Description:

Possible Symptoms

• Malfunction Indicator Light (MIL) ON
• Transmission in Limp Mode
• Clutch overheating

Possible Causes

• Wiring and/or Connector(s) from/to Clutch Temperature Sensor faulty
• Clutch Temperature Sensor faulty

Possible Solutions

• Check Wiring and/or Connector(s) from/to Clutch Temperature Sensor
• Check/Replace Clutch Temperature Sensor

Special Notes

• When found in 6-Speed Direct Shift Gearbox (DSG/02E), check VW NAR TSB 37-06-07 (2012681):
  • May be stored in Combination, which usually indicates faulty Wiring/Connector(s). Check/Replace Wiring and Connector(s) from/to Transmission Input Speed Sensor AND Clutch Temperature Sensor