Western Star Compatible Diagnostic Scan Tool Fault Code Reader

Diagnostic Scan Tool To Service & Maintain Your Western Star

Optimize the health and performance of your Western Star truck with this advanced diagnostic scanner—built to support your Western Star model. Whether you're a driver owner, technician, or fleet manager, this tool empowers you to run professional diagnostics on your machine without relying exclusively on dealer service. Just choose your Western Star truck model from the drop down box above when ordering.

✅ Key Benefits & Capabilities

• Perfect Compatibility with your Western Star Truck
  Tailored specifically for Western Star trucks. Simply choose your Western Star model from the drop down boxes above when ordering.

• Read, Diagnose & Reset Warning Codes
  Scan both engine and transmission fault codes (DTCs), interpret them on the spot, and clear warning indicators when appropriate. More information below

• Real-Time System Monitoring
  View vital live data such as engine RPM, coolant temperature, oil pressure, fuel flow, intake manifold temperature, and turbo boost — giving you insights to prevent bigger issues. More information below

• Durable, Field-Ready Construction
  This handheld unit features a rugged cable and housing built to withstand workshop and outdoor environments. It also includes an onboard code-lookup reference so you can identify faults quickly.

• Comprehensive Warranty & Delivery
  We back this tool with a 12-month warranty. Shipping is free within the U.S., making it even easier to get started.

🚜 Supported Fault Codes

This tool covers a wide range of standard fault codes found on Western Star trucks. It supports both:

• Active Codes (DM1): Issues currently affecting performance or triggering warning lights

• Logged Codes (DM2): Historical faults stored in the system, which still need attention

Example Faults It Detects

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

• Engine speed update rate abnormal

• Fuel rail pressure below required threshold

• Turbocharger boost pressure exceeding safe limits

Electrical & Sensor Issues

• Battery voltage outside acceptable range

• Throttle position sensor not responding

• Engine oil temperature too high

• Fuel temperature too low

• Vehicle speed signal missing or lost

Emissions & After-Treatment (if the ECM includes these systems)

• EGR valve not calibrated

• DPF soot accumulation beyond allowable level

• After-treatment system fault detected

• Inlet temperature of after-treatment system too low

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

Communication & General Sensor Failures

• CAN communication error

• Crankshaft speed sensor fault

• Camshaft position sensor fault

• Accelerator pedal signal out of range or abnormal

• MIL (Malfunction Indicator Lamp) requested / fault indicated

Supported System Summary

📊 Live Data Parameters

Monitor key engine, fuel, electrical and system metrics in real time:

• Engine Speed (RPM)

• Coolant Temperature

• Oil Pressure

• Fuel Rate

• Turbo/Intake Manifold Pressure & Temperature

• Throttle Position

• Battery Voltage

• Engine Hours

• Transmission Gear Position (on supported models)

• Fuel Level (on models that provide this data)

• ... and more

📦 What’s Included

• 1 × Diagnostic Scan Tool for your Western Star

• 1 × USB cable

• 1 × User Manual

• 1 x OBD2, 6 pin and 9 pin connections for your Western Star
  

✅ Why This Tool is a Smart Purchase

• Cost-Effective Diagnostics: Save on dealer service fees by diagnosing issues yourself

• Compatibility and coverage: Tailored for your Western Star model

• Reliable Warranty & Support: Full 12-month warranty backed by a responsive support team

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

FREE SHIPPING to all US.