Allison Automatic Transmission Shift Control Module Repair
From January 1st, 2026, we will be strictly Trade Only for New Zealand Info here
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 go ahead with the repair, we’ll put this towards the total cost. Our full terms of trade is the link can be found here
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
🛠️ Allison Automatic Transmission Shift Control Module Repair
Common Fault: No Power / No Communication
This is a repair service for the shift control module found in Allison automatic transmission systems. These modules are essential for proper gear selection and communication between the transmission and engine control units. When they fail, it can leave the vehicle completely inoperable or stuck in limp mode.
🔧 Common Symptoms Include:
• No power to the module
• No communication via diagnostic tools
• Gear selector unresponsive
• Intermittent transmission faults
• Vehicle stuck in gear or fails to engage
These units often fail due to internal power regulation faults, burnt components, or cold solder joints, especially in high-vibration environments like heavy-duty trucks or buses.
âś… We offer:
• Full bench diagnostics and fault simulation
• Component-level repair of power supply and logic systems
• Reinforcement of high-failure areas
• Thorough post-repair testing with power-on cycling and thermal load
• Fast turnaround and guaranteed functionality
đź’ˇ This repair is ideal for:
• Heavy-duty vehicles running Allison automatic gearboxes
• Fleet operators or workshops dealing with intermittent shift or start-up issues