Chevrolet 2500 2001-2005 Allison Duramax GM (TCM) Transmission Control Module
- Estimated Repair Time is 3-5 business days.
- Real-Time Repair Tracking
- Our service is 100% guaranteed or your money back. Order today and save!
- No additional programming will be required after the repair. Your TCM will be plug-n-play when re-installed back into your vehicle.
- International Shipping Available
- Free shipping available at online checkout!
💪 Fully Sealed and Tested: 100% Weatherproof and fully tested - guaranteed.
🔧 Fast Turnaround: We get your work truck working fast! Only 2-3 day repair time.
NOTE: We flash and program to the lastest Manufacturer settings based on your VIN. Any custom TCM software tunes must be backed up. We are not responsible for any lost TCM setting profiles.
GM engine codes that have this type of TCM: LBZ, LMM, LML, LLY, LGH
Description
This is a repair and return service for Chevrolet 2500 2001-2005 Allison Duramax GM (TCM) Transmission Control Module, years 2001 2002 2003 2004 2005 . When you receive your rebuilt part back from us it will be plug-n-play and not need any additional programming.
Once we receive your part, our trained and IPC certified technicians will run tests to identify the source of the problem. We will rebuild your part, replacing not only the failed components, but all components that are usually known to fail or go bad in this part. There is no programming required after we rebuild your original part. We want to make your experience as effortless as possible. All you have to do is send your part to us. Then after receiving the part back from us, just reinstall it and you’re back in business!
This repair service will fix these issues:
- P2669 - Computer circuit issue
- Transmission not shifting issue
- DTC Codes U0101, U0100 (Lost communication with TCM)
- P0827 - Up and Down Shift Switch Circuit Low
- P0700 - Faulty Transmission Computer Module
Our services are an affordable and effective alternative to expensive dealership part replacements that can save you hundreds of dollars, while continuing to provide an eco-friendly solution that reduces pollution. We drive our business towards consistent and profitable growth, with integrity and a commitment to the people and communities where we live and work. We do more than just repair the part, we go to the root of the problem and upgrade the components to ensure the issue does not return. We will quickly fix your malfunctioning part and return it back to you. Our service is 100% guaranteed or your money back.
💪 Fully Sealed and Tested: 100% Weatherproof and fully tested - guaranteed.
🔧 Fast Turnaround: We get your work truck working fast! Only 2-3 day repair time.
NOTE: We flash and program to the lastest Manufacturer settings based on your VIN. Any custom TCM software tunes must be backed up. We are not responsible for any lost TCM setting profiles.
GM engine codes that have this type of TCM: LBZ, LMM, LML, LLY, LGH
Common Reasons Why Allison TCMs (2001-2005) Fail and the Advantages of Repairing Your Original Unit with UpFix
The Allison Transmission Control Module (TCM), also known as the Allison A40 TCM or the TCM for the Allison 1000 series transmissions, is a vital component that manages the operation of your vehicles transmission. Commonly found in heavy-duty trucks and buses from 2001 to 2005, including GM vehicles equipped with the Duramax engine, this module ensures smooth gear shifts, optimal performance, and fuel efficiency. When the TCM fails, it can lead to a range of transmission issues such as erratic shifting, limp mode activation, or even complete transmission failure. Understanding the common reasons for TCM failure and the benefits of repairing your original unit with UpFix can help you make an informed decision.
Common Reasons for Allison TCM Failure
1. Environmental Factors
- Heat Exposure: Prolonged exposure to high temperatures can degrade the internal components and solder joints of the TCM.
- Moisture Intrusion: Water or moisture entering the TCM housing can cause corrosion and electrical shorts.
2. Electrical Overloads
- Voltage Spikes: Improper jump-starting or issues with the vehicles electrical system can cause voltage spikes that damage the TCM.
- Short Circuits: Faulty wiring or sensors can create short circuits affecting the TCMs functionality.
3. Component Wear and Tear
- Capacitor Failure: Over time, capacitors may deteriorate, leading to erratic behavior or failure of the TCM.
- Microprocessor Issues: Continuous thermal cycling and operational stress can lead to microprocessor failures.
4. Software Corruption
- Faulty Updates: Incomplete or incorrect software updates can corrupt the TCMs programming.
- Memory Loss: Power interruptions can cause loss of stored data, affecting transmission performance.
5. Manufacturing Defects
- Poor Quality Components: Defective parts used during manufacturing can result in premature failure.
- Solder Joint Failures: Inadequate soldering techniques can cause connections to break over time.
Why Repairing Your Original TCM with UpFix Is the Better Option
1. Cost-Effectiveness
- Affordable Solution: Repairing your existing TCM with UpFix is typically less expensive than purchasing a new or used replacement.
- Avoid Hidden Costs: New units may require additional expenses like programming fees and installation labor.
2. Guaranteed Compatibility
- Exact Fit: Your original unit is perfectly matched to your vehicles specifications, ensuring seamless operation.
- No Reprogramming Needed: Repairing the original unit with UpFix eliminates the need for costly reprogramming.
3. Reliability and Warranty
- Known History: You are familiar with your units maintenance history, unlike an unknown used replacement.
- Warranty Coverage: UpFix provides a warranty on our repair work, giving you peace of mind.
4. Environmental Responsibility
- Reduce Waste: Repairing your TCM reduces environmental waste compared to discarding and replacing it.
- Sustainable Choice: Extending the life of your TCM is an eco-friendly decision supporting sustainability.
5. Time Efficiency
- Quick Turnaround: UpFix offers fast repair services, often quicker than sourcing and installing a replacement.
- Minimize Downtime: Get back on the road sooner without the delays associated with new installations.
6. Professional Expertise
- Specialized Technicians: UpFix technicians specialize in repairing Allison TCM units, ensuring high-quality workmanship.
- Updated Components: Our technicians replace faulty parts with updated components that may be more durable than the originals.
At UpFix, we specialize in repairing Allison TCMs from 2001-2005 with precision and care. Our experienced technicians diagnose the specific issues affecting your unit and restore it to optimal performance. By choosing to repair your TCM with us, youre not only saving money but also investing in a reliable solution that extends the life of your vehicles transmission system.
Ready to Get Your Allison TCM Repaired?
Dont let a faulty TCM disrupt your driving experience. Contact us today to learn more about our repair services and how we can help you get back on the road safely and efficiently.
Experience the UpFix difference—quality repairs, exceptional customer service, and a commitment to excellence.
A full diagnostic check should first be performed to eliminate all other possible causes for your symptoms, even if the symptoms match those specified on the common fault description.
If you send a unit in good working condition due to misdiagnosis, and our testing determines that there are no issues or faults with the unit, or if the part is beyond repair, then you will only be responsible for the shipping costs and a bench test fee of $69.99 may be applied.
IMPORTANT! If you are not sure that this part is the cause of the fault then we recommend that you do not go ahead with this purchase and instead seek further professional advice and diagnosis.See Why Our Customers Love UpFix!
- Free return trip shipping
- Save hundreds of dollars
- Fast & easy process
- High quality components
- 100% guaranteed or your money back
- Amazing customer service and support
- No programming needed
- Plug-n-play
- Refurbished and tested to meet manufacturers specifications
- IPC certified technicians (highest standard of quality craftsmanship)
- Hassle-free warranty that is much better than the warranties you get for new replacements.
How It Works
Our services are an alternative to expensive dealership part replacement and save you hundreds!
We do more then just just repair the part. We go to the root of the problem and use new upgraded parts to ensure the issue does not return. Our service is 100% guaranteed or money back.
- Locate your product on our website.
- Match your symptoms with our descriptions to diagnose the issue.
- Place a repair order and receive a shipping label.
- Send your item to us.
- We'll repair and promptly ship it back to you!
Warranty
Warranty covers the repair of the part for one full year.
If the repair fails within a year, we will repair the part again. In the rare occasion that the item is not repairable, we will either replace the circuit board entirely or refund the cost of the repair, at our discretion.
This warranty is non-transferable and applies to the original purchaser only.