Truck Diagnostic Scanner — Clear SPN 157, 190, 312, 71, 91 Fault Codes | Cummins, PACCAR, Mack, Detroit, Volvo Compatible

Quickly Diagnose and Clear Common Engine Fault Codes on Your Heavy-Duty Truck

Struggling with fault codes like SPN 157 (Fuel Rail Pressure Low) or SPN 190 (Intake Manifold Pressure Low)?

Or other common critical fault codes such as:

• SPN 312
• SPN 71
• SPN 91
• SPN 329
• SPN 405
• and more

✅ Clear common engine fault codes
✅ Has software to work with your model (select from drop down box above)
✅ View live engine data – no subscriptions required  
✅ Plug-and-play — no tools or software needed  
✅ Backed by fast USA shipping & support

This truck diagnostic scanner with software to support your truck/engine is a reliable scanner designed to read and clear essential engine and system fault codes - just select your truck model and year above when ordering to ensure we have the software on it for your fault codes.

Compatible Truck/Engine Brands & Models

Use the dropdown menus above to select your truck brand and model/year to ensure we send a tool loaded with your trucks compatible software:

Why Choose the our truck Diagnostic Scanner?

• Clear Common Engine & System Fault Codes:
  Handle faults such as SPN 157, SPN 190, SPN 312, SPN 71, SPN 91, and more—without confusion over aftertreatment codes.

• Broad Brand Compatibility:
  Software loaded to be compatible with your trucks model and year.

• View Live Engine Data & Freeze Frame:
  Monitor key engine parameters for accurate troubleshooting.

• Plug-and-Play with No Subscriptions:
  Simply connect to your truck’s diagnostic port (fitting adapter provided) — no ongoing fees.

Common Fault Codes this Scanner Can Read and Clear

Note: This list focuses on engine/system codes the scanner handles. This scanner supports many aftertreatment DPF/DEF codes, but cannot regen, so will not ultimately clear them.

Trouble Codes (DTC) Diagnosed & Cleared

This tool reads and clears a wide range of standard fault codes (DTCs) that could be  found on your Caterpillar dozer. It supports both:

• Active Codes (DM1): Current issues triggering warning lights or reduced performance

• Logged Codes (DM2): Stored issues that occurred in the past and may still need attention
  

Live Data Provided

🔍 Live Data Provided

Obtain live data to monitor critical engine, electrical, and emissions parameters to identify issues early and maintain optimal operation. Some of the live data provided by the diagnostic tool for your Caterpillar dozer can include the following depending on what your machine supports:

Data provided such as below, and more:

Customer Testimonials

⭐️⭐️⭐️⭐️⭐️
“The truck scanner was a lifesaver for our fleet. It quickly cleared engine codes like fuel rail pressure faults without the hassle of dealer visits. Easy to use and reliable.”
— Mark T., Fleet Manager

 

⭐️⭐️⭐️⭐️⭐️
“I use for truck diagnostics on my Kenworth every week. It’s great for clearing those annoying engine oil pressure and turbo boost codes. Simple, plug-and-play, and no subscription fees!”
— Sarah L., Owner-Operator

 

⭐️⭐️⭐️⭐️⭐️
“Saved me a lot of downtime by diagnosing and clearing intake manifold pressure and engine coolant temperature faults fast. The live data feature is really handy too.”
— Jason M., Truck Technician

Ready to Clear Your Truck’s Engine Fault Codes?

Package includes:

1 x Diagnostic tool
1 x USB cable
1 x User manual
1 x 6 pin connector
1 x 9 pin connector
1 x 16 pin OBD2 connection
1 x Nylon carry bag

Choose your truck/engine year and model from the drop down list above and click "add to cart" to order.

We ship free to U.S. Customers

FAQ

Q: Can this scanner clear DPF or DEF-related codes?
A: No. The NL102 does not support forced DPF regen or aftertreatment code clearing—focuses on engine/system fault codes. It can clear, but you would need to have done a DPF regen in most of these instances for it to then stay cleared. If you need a dpf regen tool please just contact us, and we can supply you with that

Q: How do I know if it works on my truck?
A: Use the dropdown selectors above to choose your truck brand and model/year for compatibility. That way we will insure its installed with the required software for your model

Q: Are there subscription fees?
A: No. Firmware updates are free via USB, with no ongoing costs.