Tool

DQ38x (401 Bootloader) Now Unlocked by AutoTuner

DQ38x (401 Bootloader) Now Unlocked by AutoTuner

The wait is over! The VAG DQ381 transmission with the 401 bootloader has locked tuners out of this transmission since it first started showing up on vehicles in 2022+. Now, with the AutoTuner Tool you can unlock the OBD port on the bench, without removing the transmission controller from the vehicle, and flash your favorite tune! Just make sure you use our new DQ38x harness or if you already own our DSG kit, you're also ready go to!


Key Details:

⚙️ Transmission: DQ38x (401 Bootloader 2022+) (Example: DQ381)
🔍 TCU Identifier (Sboot):
BH1G0401
🔍 TCU Identifier (Software): Starts with FL_0GC906
⚙️ Type: 
Transmission Control Unit (TCU)
🔌 Mode: Bench NR, OBD VR
🔌 Methods: Bench Unlock and then Flash via OBD
🧩 Readout (OBD): Calibration
🖥️ MCU: SH72549
⏱️ Read Time (Bench): 3min 30sec
⏱️ Write Time (Bench): 30sec
⏱️ Write Time (OBD): 1min 30sec
✅ Checksum Correction
🔄 Back to Stock Function: OBD Only
🔄 Backup Creation: Bench Only

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