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PROACTIVE DIAGNOSTICS: Truck Tool Diagnostic to Read & Clear Yellow Check Engine Lights (CEL) & Fault Codes
PROACTIVE DIAGNOSTICS: Truck Tool Diagnostic to Read & Clear Yellow Check Engine Lights (CEL) & Fault Codes
PROACTIVE DIAGNOSTICS: Truck Tool Diagnostic to Read & Clear Yellow Check Engine Lights (CEL) & Fault Codes
PROACTIVE DIAGNOSTICS: Truck Tool Diagnostic to Read & Clear Yellow Check Engine Lights (CEL) & Fault Codes
PROACTIVE DIAGNOSTICS: Truck Tool Diagnostic to Read & Clear Yellow Check Engine Lights (CEL) & Fault Codes

PROACTIVE DIAGNOSTICS: Truck Tool Diagnostic to Read & Clear Yellow Check Engine Lights (CEL) & Fault Codes

$189.93 $0.00

STOP THE WORRY. DIAGNOSE THE CHECK ENGINE LIGHT.

The Yellow Check Engine Light (CEL) means your truck has stored a fault code, but it hasn't escalated to an emergency yet. Don't wait for that minor issue to turn into costly downtime or an Engine Protection Derate!

This diagnostic tool is your essential tool for proactive diagnostics. It allows you to instantly read the exact SPN/FMI code behind the warning, giving you the information you need to order the correct part or plan your next service stop immediately.

Avoid the expense and delay of a dealer visit just to identify a sensor issue—use this tool to diagnose, plan, and clear the light yourself.

Perfect Compatibility with your truck/engine. Simply choose your brand and model from the drop down boxes above when ordering.


Comprehensive Fault Code Coverage (DM1 & DM2)

This tool will cover a wide range of fault codes found on your truck, supporting both:

  • Active Codes (DM1): Issues currently affecting performance or triggering warning lights (these are the codes that put you in Limp Mode).

  • Logged Codes (DM2): Historical faults stored in the system, perfect for preventative maintenance.

Some of the Critical Faults It Detects (Including Derate Triggers):

Engine Faults

  • Engine oil pressure too low or too high

  • Coolant temperature outside normal range (too high or too low)

  • Intake manifold temperature excessively elevated

  • Torque limiting (engine-derate) engaged

  • Fuel rail pressure below required threshold

  • Turbo boost pressure exceeding safe limits

Emissions & After-Treatment (note it clears these codes but does not run DPF regen or bi directionals required prior to clearing, you will need a DPF regen capable scanner from us for that)

  • DPF soot accumulation beyond allowable level

  • After-treatment system fault detected

  • DEF pressure too low (on models equipped with DEF)

Electrical, Sensor & Communication Failures

  • Battery voltage outside acceptable range

  • Crankshaft speed sensor fault

  • CAN communication error

  • Accelerator pedal signal out of range or abnormal

As well as transmission, brakes, chassis and more...

📊 Live Data Parameters (Proactive Maintenance)

Monitor key engine, fuel, electrical, and system metrics in real-time to prevent issues before they cause a breakdown:

  • Engine Speed (RPM)

  • Coolant Temperature

  • Oil Pressure

  • Fuel Rate

  • Turbo/Intake Manifold Pressure & Temperature

  • Battery Voltage

  • Engine Hours

  • Transmission Gear Position (on supported models)

  • ...and more

📦 What’s Included

Everything you need to get started right out of the box:

  • 1 × Diagnostic Scan Tool for your truck/engine (Choose your specific model from the drop down boxes above)

  • 1 × USB cable and User Manual

  • 1 x OBD2, 6 pin, and 9 pin connections for complete compatibility with your model.

Select your model using the dropdown above and then click “Add to Cart” to get your diagnostic scanner.

FREE SHIPPING to all US.