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Allison T14/A50 Transmission Control Module repair
Price Exclusive of GST
Our minimum assessment fee is $150 + GST (Excluding Headlights). This just covers the time to check the unit over. If you proceed with the repair, we’ll apply this to the total cost. Our full terms of trade can be found here. Has repair work been attempted by your customer? Link here !
Heavy Diesel or Industrial Repair you need? Link here for a solution!
International Customers:
When sending a unit from overseas, please declare it as “Repair and Return” with a low customs value (around $100 USD) to avoid unnecessary import fees. - All Repair Prices are quoted in NZD
The Allison T14/A50 Transmission Control Module (TCM) is a common component in 2009-2015 Chevrolet and GMC trucks with the 6.6L Duramax engine. These TCMs are known to fail, often due to internal circuit board issues, leading to various transmission problems. A failed TCM can result in messages like "Range Shift Inhibited," "Service Brake System," or "Service Stabilatrak". Other symptoms include erratic shifting, loss of the gear shift indicator, and the transmission slamming into drive or reverse. A failing or failed TCM can also cause a Check Engine Light to illuminate.