Cummins Celect Plus ECM engine control module with aluminum case and front-facing connectors shown on mounting plate.

Cummins N14 Celect Plus ECM Repair

Cummins

Cummins N14 Celect Plus ECM Repair

Cummins
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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
  • 60% Faster Turnaround Time Than Dealerships
  • Hassle Free Warranty

How do I know if the ECM is bad and not just a sensor?

Start by checking power, ground, and basic wiring to the ECM. If those are solid and the truck still has no-start, shutdown, or communication problems, especially after sensor replacements, the Celect Plus ECM becomes a strong suspect.

Will my N14 need to be reprogrammed after repair?

In most cases, no. Because we repair your original ECM instead of replacing it, your existing calibration usually remains intact and the module can be reinstalled without programming.

Can you repair water-damaged Celect Plus ECMs?

Light to moderate corrosion may be repairable. Heavy corrosion, burnt areas, or missing material can limit what we can safely repair. If we determine the ECM is not a good candidate, we will contact you.

Is it safe to keep driving if the engine only shuts down occasionally?

Intermittent shutdowns can leave you stranded at the worst time. Once shutdowns start, we generally recommend addressing the ECM issue as soon as practical.

What information should I include when I ship the ECM?

Include truck year/make/model, engine details, a list of symptoms, recent fault codes, and anything already replaced. This helps us reproduce and target the issue more efficiently.

Shipping calculated at checkout.

Cummins N14 Celect Plus ECM Repair

The Cummins N14 Celect Plus platform is widely used in heavy-duty applications, but its engine control module (ECM) can develop internal faults over time. When that happens, trucks may suffer from no-start conditions, loss of power, random shutdowns, or communication problems that simple parts swapping will not fix.

Our Celect Plus ECM repair service focuses on restoring your original module instead of forcing you to buy a replacement and schedule dealer programming. You send in your ECM, we perform board-level diagnostics and repair, and ship the same unit back, typically with your existing calibration preserved.

When a Celect Plus ECM May Be at Fault

On a Cummins N14 Celect Plus engine, the ECM monitors and controls fuel delivery, injection timing, engine protection strategies, and communication with the rest of the truck. Internal ECM issues often show up as:

  • Crank–no start: The engine cranks, but will not fire even though fuel and basic sensors have been checked.
  • Intermittent starting: The truck may start when cold but fail to restart when hot or after a short shutdown.
  • Sudden engine shutdowns: The engine cuts off without warning and may restart after sitting or cooling.
  • Loss of power under load: Noticeable reduction in pulling power, especially on grades or while towing.
  • No communication with the ECM: Diagnostic tools cannot connect to the Celect Plus controller, even when powers and grounds appear correct.
  • Recurring or conflicting fault codes: Codes that move around, return quickly after clearing, or do not match the truck-side findings.

Once wiring, batteries, grounds, and external sensors have been verified, a failing Celect Plus ECM becomes a likely cause of these patterns.

Why Cummins N14 Celect Plus ECMs Fail

N14 Celect Plus ECMs operate for years in hot, high-vibration environments. Common contributors to failure include:

  • Thermal stress: Repeated heating and cooling cycles slowly weaken solder joints and stress components.
  • Vibration: Constant vibration from the engine and chassis can fatigue internal connections and heavier components.
  • Electrical spikes: Low voltage events, weak batteries, poor grounds, and jump-starts can strain voltage regulators and driver circuits.
  • Age-related wear: Over time, capacitors and other parts drift out of specification or fail outright.
  • Moisture and contamination: Moisture entering connectors or the housing can promote corrosion and intermittent faults.

These factors tend to start as intermittent problems and eventually progress into hard failures if not addressed.

What Is Included in Our Celect Plus ECM Repair

Our repair process is designed specifically around common Celect Plus failure modes. Each ECM goes through:

  • Internal visual inspection: The ECM is opened and examined for heat damage, corrosion, and previous repair attempts.
  • Power and ground circuit testing: Internal power rails and ground networks are verified under load.
  • Logic and driver circuit evaluation: Circuits involved in fueling, timing, and communication are tested for weak or failed components.
  • Component replacement: Faulty or out-of-spec components are replaced with appropriate replacements.
  • Solder rework: Cracked or stressed joints in high-risk areas are reflowed or rebuilt.
  • Board cleaning: Residues and contamination are removed to help prevent future corrosion issues.
  • Bench testing: The repaired ECM is powered and monitored on the bench for stable operation before return shipping.

If the ECM arrives with extensive physical damage, burnt sections, or heavy corrosion that prevents a reliable repair, we will contact you before proceeding.

Supported Applications

This service supports Cummins N14 Celect Plus engines commonly installed in:

  • Highway tractors and linehaul trucks
  • Vocational and regional haul applications
  • Other heavy-duty trucks equipped with N14 Celect Plus ECMs

If you are unsure whether your ECM is a Celect Plus unit, you can send us photos of the label for confirmation.

How the Mail-In ECM Repair Process Works

  1. Order the service: Purchase this Cummins N14 Celect Plus ECM repair online.
  2. Remove the ECM: Disconnect the batteries and carefully remove the ECM from the truck.
  3. Ship the ECM: Package it securely and include your contact information and a description of the symptoms and fault codes.
  4. We diagnose and repair: We perform board-level diagnostics and repair where possible.
  5. We return your ECM: After bench testing, we ship your original ECM back ready to install.

Typical in-house turnaround time is about 1–3 business days, not including shipping.

Service Details

  • Service Type: Board-level repair of your original Cummins N14 Celect Plus ECM
  • Programming: Your existing calibration is normally preserved
  • Turnaround: 1–3 business days in-house once received
  • Warranty: Warranty terms are provided with your repair

Please ship your module to the following address:

Module Repair Lab
8698 Elk Grove Blvd Ste 1, Elk Grove, CA 95624

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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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

Warranty

Warranty coverage varies depending on the specific product being repaired. Please refer to the individual product page for the most up-to-date warranty information.

In general, our warranty covers the repaired part for a defined period beginning on the date of repair. If a malfunction occurs within the warranty period, we will repair the item at no additional cost. In rare cases where the item is deemed irreparable, we reserve the right to either replace the circuit board or refund the cost of repair, at our discretion.

This warranty is non-transferable and applies only to the original purchaser. Damage resulting from misuse, accidents, improper installation, or unauthorized repairs is not covered and will void the warranty.

If you have any questions regarding the warranty for your specific repair, please contact us directly.

FAQs

8698 Elk Grove Blvd #1, Elk Grove, CA 95624

info@modulerepairlab.com

Turnaround time is fast—typically 2 to 3 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, warranty depends on the module being repaired.