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Featured products

  • OBDResource RT911 Professional 12V/24V Automotive Relay Tester – Fast Relay Function Check & LED Indicator Diagnostic Tool - OBDResource USA OBDResource RT911 Professional 12V/24V Automotive Relay Tester – Fast Relay Function Check & LED Indicator Diagnostic Tool

    OBDResource RT911 Professional 12V/24V Automotive Relay T...

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    OBDResource RT911 Professional 12V/24V Automotive Relay T...

    Regular price $24.99 USD
    Regular price $29.99 USD Sale price $24.99 USD
    Sale
  • OBDResource Super EL50448 2-in-1 TPMS Relearn Tool for GM & Ford – Tire Pressure Sensor Reset & Activation Tool (315/433 MHz) - OBDResource USA OBDResource Super EL50448 2-in-1 TPMS Relearn Tool for GM & Ford – Tire Pressure Sensor Reset & Activation Tool (315/433 MHz) - OBDResource USA

    OBDResource Super EL50448 2-in-1 TPMS Relearn Tool for GM...

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    OBDResource Super EL50448 2-in-1 TPMS Relearn Tool for GM...

    Regular price $13.99 USD
    Regular price $19.99 USD Sale price $13.99 USD
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  • OBDResource RT100 Ultimate Smart Relay Tester - Wireless 12V/24V Auto-ID for Standard & Maxi Relays, Professional MCU Precision - OBDResource USA OBDResource RT100 Ultimate Smart Relay Tester - Wireless 12V/24V Auto-ID for Standard & Maxi Relays, Professional MCU Precision

    OBDResource RT100 Ultimate Smart Relay Tester - Wireless ...

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    OBDResource RT100 Ultimate Smart Relay Tester - Wireless ...

    Regular price $69.99 USD
    Regular price $99.99 USD Sale price $69.99 USD
    Sale
  • OBDResource TPS10 Universal TPMS Relearn Tool – Tire Pressure Sensor Activation, Reset & Scan Tool for 315 MHz / 433 MHz Vehicles - OBDResource USA OBDResource TPS10 Universal TPMS Relearn Tool – Tire Pressure Sensor Activation, Reset & Scan Tool for 315 MHz / 433 MHz Vehicles

    OBDResource TPS10 Universal TPMS Relearn Tool – Tire Pres...

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    OBDResource TPS10 Universal TPMS Relearn Tool – Tire Pres...

    Regular price $69.99 USD
    Regular price $99.99 USD Sale price $69.99 USD
    Sale
  • OBDResource ST100 Automotive Spark Plug Tester – Professional Spark Plug Diagnostic Tool with Indicator Lights & Wide Voltage Input - OBDResource USA OBDResource ST100 Automotive Spark Plug Tester – Professional Spark Plug Diagnostic Tool with Indicator Lights & Wide Voltage Input

    OBDResource ST100 Automotive Spark Plug Tester – Professi...

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    OBDResource ST100 Automotive Spark Plug Tester – Professi...

    Regular price $24.99 USD
    Regular price $29.99 USD Sale price $24.99 USD
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  • PS100PRO Automotive Electrical Circuit Tester | Power Circuit Probe, Component Activation & Short Circuit Location Tool - OBDResource USA PS100PRO Automotive Electrical Circuit Tester | Power Circuit Probe, Component Activation & Short Circuit Location Tool - OBDResource USA

    PS100 Pro Automotive Electrical Circuit Tester | Power Ci...

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    PS100 Pro Automotive Electrical Circuit Tester | Power Ci...

    Regular price $75.00 USD
    Regular price $89.00 USD Sale price $75.00 USD
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  • OBDResource P01 Bluetooth OBD2 VCI Dongle | Portable PIC18F25K80 Scanner OBDResource P01 Bluetooth OBD2 VCI Dongle | Portable PIC18F25K80 Scanner

    OBDResource P01 Bluetooth OBD2 VCI Dongle | Portable PIC1...

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    OBDResource P01 Bluetooth OBD2 VCI Dongle | Portable PIC1...

    Regular price $49.99 USD
    Regular price $69.99 USD Sale price $49.99 USD
    Sale
  • OBDResource P02 Bluetooth OBD2 VCI Dongle OBD2 Scanner OBDResource P02 Bluetooth OBD2 VCI Dongle OBD2 Scanner

    OBDResource P02 Bluetooth OBD2 VCI Dongle OBD2 Scanner

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    OBDResource P02 Bluetooth OBD2 VCI Dongle OBD2 Scanner

    Regular price $49.99 USD
    Regular price $69.99 USD Sale price $49.99 USD
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Blog posts

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  • How to Adjust Ignition Timing with a Timing Light: A Practical Guide Using the OBDResource TL123

    How to Adjust Ignition Timing with a Timing Lig...

    March 9, 2026

    For DIY car enthusiasts, auto repair technicians, and classic car owners, learning how to adjust ignition timing with a timing light is a valuable skill. In this guide, we will...

    How to Adjust Ignition Timing with a Timing Lig...

    March 9, 2026

    For DIY car enthusiasts, auto repair technicians, and classic car owners, learning how to adjust ignition timing with a timing light is a valuable skill. In this guide, we will...

  • Why Relays Matter in Modern Vehicles — And Why Every Technician Should Test Them Properly

    Why Relays Matter in Modern Vehicles — And Why ...

    February 21, 2026

    In today’s vehicles, electrical systems are no longer simple circuits. They are high-load, multi-module, computer-controlled networks.

    Why Relays Matter in Modern Vehicles — And Why ...

    February 21, 2026

    In today’s vehicles, electrical systems are no longer simple circuits. They are high-load, multi-module, computer-controlled networks.

  • A Mechanic’s Shop Diary: The 10-Minute Spark Test That Stops Parts-Cannon Repairs

    A Mechanic’s Shop Diary: The 10-Minute Spark Te...

    February 14, 2026

    Most misfire stories start the same way: “It runs… but it doesn’t feel right.” No warning lights. No obvious codes. Maybe a little stumble at idle, a slight loss of...

    A Mechanic’s Shop Diary: The 10-Minute Spark Te...

    February 14, 2026

    Most misfire stories start the same way: “It runs… but it doesn’t feel right.” No warning lights. No obvious codes. Maybe a little stumble at idle, a slight loss of...

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