2024 Cummins CalTerm 5.14

Cummins Calterm: Overview, Compatibility, and Best Adapters

What is Cummins Calterm 5.14?

Cummins Calterm 5.14 is advanced engineering-level software used for in-depth ECM (Engine Control Module) tuning, calibration, and programming on Cummins engines. Unlike Cummins INSITE (which is primarily for diagnostics and maintenance), Calterm is designed for modifying ECM parameters, performance tuning, and emissions adjustments.

Note: Calterm is an internal Cummins tool mainly used by engineers and authorized technicians. It allows deep modification of ECMs, which can impact emissions compliance and engine performance.

What Can Calterm 5.14 Do?

•  Modify & Tune ECM Parameters
• Adjust fuel maps, timing, torque limits, governor settings, and more.
• Disable or Modify Emissions Systems (DEF, DPF, SCR, EGR)
•  Allows adjustments to aftertreatment parameters (may be illegal for road use).
• Calibrate & Flash ECMs
• Load and modify ECM calibration files (.e2m, .cal, .ecfg).
• Monitor Real-Time Engine Data
• Advanced live data logging and analysis.
• Adjust Injector & Fuel System Settings
• Change injector flow rates, fuel pressure, and pilot injection settings.
• Support Bench ECM Programming
• Used for ECM modifications outside the vehicle.
• Unlock Advanced ECM Functions
• Access locked features that arent available in Cummins INSITE.

Supported Brands & Engines

Calterm 5.14 supports all Cummins electronic engines used in on-highway, off-highway, industrial, marine, and power generation applications.

Supported Cummins Engines:

On-Highway Truck Engines

•  ISX, X15, X12, ISB, ISC, ISL, ISM
• Signature 600, N14, L10, M11
•  6.7L Cummins (Dodge RAM & Ford F650)

Off-Highway & Industrial Engines

• QSX, QSM, QSL, QSB, QSK, QSG
•  QSF, K19, K38, K50

 Marine Engines

• QSB, QSC, QSL, QSM, QSK Marine Variants

Power Generation (Genset) Engines

•  KTA, GTA, QSK Series

 OEM Equipment with Cummins Engines

•  Some Komatsu, John Deere, Case, New Holland, JCB, Bobcat, Hitachi, Terex, and Doosan equipment with Cummins engines.

Best Adapters for Cummins Calterm 5.14

To connect Calterm to an ECM, you need a RP1210-compliant adapter that supports J1939, J1708, and CAN bus protocols.

Recommended Adapters:

Cummins INLINE 7

• Official Cummins adapter, best compatibility, works with Calterm, INSITE, and InPower

Nexiq USB Link 2 & 3 

• Fast, supports multiple brands, works with Calterm, INSITE, JPRO

DG Tech DPA5

• Reliable, used for tuning and fleet diagnostics

Noregon JPRO DLA+

• Multi-brand support, advanced logging

TEXA Navigator TXTs

• Advanced tuning for trucks, construction, and marine

Connection Types:

9-Pin (J1939/J1708) Used in most heavy-duty trucks

 6-Pin (J1708 legacy) Older Cummins engines (pre-2007)

 OBD-II (16-Pin J1962) Used in Dodge RAM 6.7L Cummins

 3-Pin Found in older off-highway and industrial Cummins engines

How to Use Cummins Calterm 5.14

WARNING: Calterm allows changes that may void warranties, violate emissions laws, or cause engine damage if used incorrectly.

A. Connecting Calterm to an ECM

1. Install Calterm 5.14 on a Windows 10/11 laptop.

2. Connect an RP1210 adapter (e.g., Cummins INLINE 7) to the vehicles diagnostic port.

3. Open Calterm and click connect to ECM.

4. Select the correct ECM type and communication protocol (J1939, J1708, CAN bus).

5. The ECM data will load, allowing you to modify calibration settings.

B. Reading & Modifying ECM Parameters

Open the Calibration File (.e2m, .cal, or .ecfg) for the ECM.

 Adjust fuel maps, injection timing, governor limits, or emissions settings.

Save a backup copy before making changes.

C. Flashing a New Calibration File

1. Go to Calibration Downloads. 

2. Select the new .cal or .e2m calibration file.

3. Click Write to ECM and follow on-screen instructions.

4. Wait for the flash to complete, then cycle the ignition OFF and ON.

D. Disabling Emissions Systems (DPF, SCR, EGR)

Locate Aftertreatment Control Parameters in the ECM.

Modify DPF regen settings, DEF injection, and EGR flow rates.

Save the modified calibration and flash it to the ECM.

Perform a key cycle and clear any fault codes.

Important: Disabling emissions systems on a road vehicle is illegal in many countries. It is primarily done in off-highway or racing applications.