Freightliner CPC4 Module Repair | Fast Turnaround & 4-Month Warranty

Freightliner

Freightliner CPC4 Module Repair | Fast Turnaround & 4-Month Warranty

Freightliner
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Ready for a quick repair?

Mail in your device for a quick and hassle-free repair.

  1. Step 1: Place your order
  2. Step 2: Provide repair details & ship item.
  3. Step 3: Receive a repaired module within days, not weeks.
  • Repaired within days, not weeks
  • No programming required
  • 60% Faster Turnaround Time Than Dealerships
  • Hassle free 1-year Warranty

What the CPC4 repair service includes

Our California-based service includes complete diagnostic testing, precision BGA rework, restoration of power and communication circuits, and real-world load testing. Your original CPC4 module is professionally repaired and returned plug-and-play ready.

How long the repair takes

Most CPC4 module repairs are completed within 1 to 3 business days after we receive your unit at our California repair center.

Reprogramming after repair

No reprogramming is needed. The module retains all original data and vehicle-specific settings.

Warranty included

All CPC4 repairs are backed by a 4-month warranty covering parts and labor.

Supported vehicles

This repair service supports CPC4 modules used in Freightliner Cascadia and other heavy-duty diesel trucks operating in California and across the western U.S. We specialize in trucks powered by Detroit Diesel electronic control systems, commonly used in regional and long-haul fleets.

 

Get Your Truck Back on the Road – CPC4 Module Repair for Freightliner Cascadia

At Module Repair Lab, we specialize in CPC4 (Common Powertrain Controller) repair services for Freightliner Cascadia trucks. Our expert process includes full diagnostics, high-precision soldering, and dependable repair work — all designed to get your semi-truck back in service quickly and affordably.

Just like other electronic systems, the CPC4 module in 2014–2019 Freightliner Cascadia trucks can fail due to heat, vibration, moisture, or internal component wear. Understanding the source of failure is essential when deciding whether to repair the module.

Module Repair Lab provides a cost-effective solution: expert repair of your original CPC4 module, offering a trusted alternative to expensive dealership replacements. Every unit goes through complete diagnostic evaluation before we proceed with the repair.

If your CPC4 passes testing and shows no faults, we return it to you untouched — no unnecessary work or charges. All repaired units are plug-and-play ready and do not require any additional programming or coding.

Key Features of Our CPC4 Repair Services:

  • ✅ 100% plug-and-play – No coding or reprogramming needed

  • ✅ Fast 1–3 day turnaround – Most repairs completed within three business days

  • ✅ 4-month warranty – All CPC4 repairs are backed by a 4-month warranty covering parts and labor

Common CPC4 Issues We Repair:

  • No start / Intermittent start

  • Dead throttle / Intermittent throttle response

  • CPC reads incorrectly (e.g., CPC2, TCM, etc.)

  • SPN 609 FMI 12 – CPC hardware fault

  • Check engine, ABS, or DEF lights stay on

  • Loss of communication with ECM or instrument cluster

Supported Freightliner Cascadia Model Years:

  • 2014 Freightliner Cascadia

  • 2015 Freightliner Cascadia

  • 2016 Freightliner Cascadia

  • 2017 Freightliner Cascadia

  • 2018 Freightliner Cascadia

  • 2019 Freightliner Cascadia

Supported CPC4 Part Numbers:

  • A0034461002 / 001, / 002, / 003, / 004, / 005

  • A0034461102 / 002, / 003, / 004, / 005

  • A0034461202 / 001

  • A0034461302 / 001

  • A0064463402 / 001

Please ship your module to the following address:

Module Repair Lab
113 South Lake Street
Madera, CA 93638
United States

Make sure to include your contact information and order number inside the package to help us process your repair quickly.

We recommend using a trackable and insured shipping method to ensure safe delivery. Once your repair is complete, we will ship it back to the return address you provide.

If you have any questions, feel free to contact us.

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What People Are Saying

How it Works

We offer a cost-effective solution to pricey dealership part replacements, saving you a significant amount of money. Our approach goes beyond simply repairing the faulty part – we address the underlying issue and use top-quality upgraded parts to ensure a long-lasting fix. We stand behind our service with a 100% satisfaction guarantee or your money back.

  1. To get started, carefully remove the part from your vehicle. If you’re unsure how to do this, you can take it to your local body shop for assistance.
  2. Once the part is removed, pack it securely in a suitable box to prevent any damage during transit.
  3. Don’t forget to print out your order confirmation page and include it in the package, along with your name, return address, and phone number

Unbeatable Warranty.

This warranty covers the repair of the part for a duration of one year starting from the date of repair. In the event of a malfunction within this period, we will carry out repairs free of charge. In the rare circumstance that the item is deemed irreparable, we reserve the right to either replace the circuit board or refund the cost of repair, at our discretion. Please note that this warranty is non-transferable and applies only to the original purchaser of the part. Furthermore, damages caused by misuse, accidents, or unauthorized repairs will not be covered under this warranty and will result in the warranty becoming void. If you have any inquiries or concerns regarding this warranty, please feel free to reach out to us.

FAQs

113 South Lake Street, Madera, CA 93638

info@modulerepairlab.com

Turnaround time is fast—typically 1 to 2 business days once we receive your module.

You can pay on the website with PayPal or a credit card or you can send the module in with your information and we will contact you for a credit card after the repairs have been performed.

Yes, we stand behind our work with a 1-year limited warranty for most products covering defects in parts and workmanship. Buy with confidence.