Diagnostic Scan Tool To Service & Maintain Your Mack RD-690 Optimize the health and performance of your Mack RD-690 truck with this advanced diagnostic scanner—built to support your Mack RD-690. 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. ✅ Key Benefits & Capabilities Perfect Compatibility with your Mack RD-690 TruckTailored specifically and guaranteed to work for your Mack RD-690. Read, Diagnose & Reset Warning Codes, common RD-690 codesScan both engine and transmission fault codes (DTCs), interpret them on the spot, and clear warning indicators when appropriate. More information below Real-Time System MonitoringView 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 ConstructionThis 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 & DeliveryWe 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 Mack RD-690 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 Mack RD-690 1 × USB cable 1 × User Manual 1 x OBD2, 6 pin and 9 pin connections for your Mack RD-690 ✅ Why This Tool is a Smart Purchase Cost-Effective Diagnostics: Save on dealer service fees by diagnosing issues yourself Compatibility and coverage: Compatible with your Mack RD-690 model Reliable Warranty & Support: Full 12-month warranty backed by a responsive support team Simply click “Add to Cart” above to get your diagnostic scanner for your Mack RD-690. FREE SHIPPING to all US.