GM 19431596 T14 Allison Transmission Control Module TCM 2009-2015

Replace your 2009-2015 2500HD/3500HD Duramax's faulty T14 / A50 Transmission Control Module with a brand-new one from DHD.  If you're experiencing erratic shift behavior, unpredictable converter lockup, or scan tool connectivity issues, there's a chance your TCM is faulty.  The internal circuit board is known to fail and is not serviceable.  When this failure occurs, you may observe messages such as DTC U0101 (loss of communication with TCM), Range Shift Inhibited, Service Brake System, experience loss of gear shift indicator on dash, and/or slam into Drive or Reverse.  TCMs ship blank and will require re-flashing to be functional.

Fitment:

• 2009-2015 Chevrolet/GMC 2500HD/3500HD Duramax
  • 10th digit of VIN - 9, A, B, C, D, E, or F.
    • If the 10th digit of your VIN is "F", visually inspect your TCM to verify that it matches the one in the picture. Late 2015s come with the T87 TCM.
• If unsure of fitment, contact us for assistance at 989-479-0444. Please have your VIN Number ready.

Supercession/Interchange:

• GM 19435614
• GM 24256861

Core Charge

To help us insure inventory levels and keep the cost low, a $200 refundable core charge will be applied to your order during checkout. Cores must be free of banjo thread defects, broken connectors bodies, bent pins, and match the model you ordered.