Allison Automatic Transmission Shift Control Module Repair

🛠️ 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.

✅ 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

💡 This repair is ideal for:
• Heavy-duty vehicles running Allison automatic gearboxes
• Fleet operators or workshops dealing with intermittent shift or start-up issues