AUTOOL OBD2 Premium VersionProduct OverviewThe AUTOOL OBD2 Breakout Box Protocol Detector Premium Version is a pass-through OBD-II diagnostic connector detector designed for vehicle diagnostics, OBD-II communication checks, power and ground line monitoring, and ECU data protection. It helps verify stable connectivity between diagnostic scanners and vehicle OBD-II systems, quickly identify communication or power supply issues, and provide convenient access to all 16 OBD2 pins for multimeter or oscilloscope testing.The Premium Version supports an external 8-26V wide-voltage power supply to provide stable power support during diagnostics, helping reduce ECU data loss risk caused by unstable power. It also includes a 120Ω series mode so ECU data can still be read through the cable even when the ECU is removed, expanding diagnostic and repair possibilities beyond traditional OBD-II connection checks.OBD-II Protocol Check 8-26V External Power 120Ω Series Mode 16-Pin Breakout8-26VExternal Power120ΩSeries Mode45cmTPU Cable3 YearsWarranty Click to enlarge Click to enlargeBefore You Order And UseBefore You Order And UseThis product directly connects to the vehicle data link. Review the safety limits before using jumpers, load devices, or pin-level diagnostic access.Vehicle Data Link RiskImproper use may damage the vehicle data communication system, related circuits, or related systems. Stop using the product immediately if you are not sure whether the operation may cause problems.Jumper Short-Circuit WarningWhen you are not sure about the vehicle electrical circuit, do not use a jumper to short-circuit the input jack of this product.Load And Pin SafetyDo not use this product to connect a load device with a power exceeding 1 ampere. Do not directly short-circuit pin 16, pin 4, and pin 5.Warm TipsThis product directly connects to the vehicle data link.Improper use may damage the vehicle data communication system, related circuits, or systems.When you are not sure whether your operation will cause problems, please stop using this product immediately.When you are not sure about the electrical circuit on the car, do not use a jumper to short-circuit the input jack of this product.Do not use this product to connect a load device with a power exceeding 1 ampere.Do not directly short-circuit the 16th pin, the 4th pin, and the 5th pin of this product.Product ComparisonProduct ComparisonCompare Basic, Upgraded, and Premium versions before choosing the right OBD2 breakout box for connection checking, protocol monitoring, power support, display reading, and deeper diagnostic access.Basic VersionEntry-level OBD2 breakout box for basic OBD pin access and connection checking.Upgraded VersionMore complete diagnostic connector detection option for users who need stronger OBD2 troubleshooting support.Premium VersionAdds external 8-26V power support, 120Ω series mode, display voltage reading, and broader diagnostic access.Decision CheckCompare external power supply, display screen, protocol monitoring, 120Ω mode, OBD pin breakout access, and diagnostic workflow before choosing. Click to enlargeKey FeaturesKey FeaturesThe Premium Version combines external ECU power support, CAN communication stability support, OBD2 voltage display, LED indicator checking, and full analog OBD2 interface access for diagnostic workflows.Vehicle ECU Power SupplyConnects to an external 8-26V power source to provide stable power support and help prevent ECU data loss caused by unstable diagnostic power.120Ω Series Resistor ModeSupports 120Ω series mode to help stabilize CAN bus communication. ECU data remains readable via cable even after ECU removal.LED Indicator FunctionLED indicators instantly display whether the vehicle OBD2 power and ground connections are normal.16-Pin OBD2 ConnectorCompatible with vehicles featuring an OBD2 interface and provides direct diagnostic access to all 16 OBD2 pins.45cm TPU CableThe 45cm TPU cable offers high elasticity, flexibility, and durability for repeated workshop diagnostic use.Real-Time Voltage DisplayThe display screen instantly measures OBD2 interface voltage and shows real-time voltage readings during diagnostic checks.Diagnostic InterfaceEnables rapid connection to all 16 OBD2 pins during vehicle communication and line condition checks.Fully Analog OBD2 InterfaceCompatible with multimeters and oscilloscopes for deeper signal, circuit, and diagnostic line testing.Warranty And Lifetime MaintenanceFor eligible non-human damage cases, AUTOOL provides free replacement parts within 3 years and lifetime maintenance support. Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlargeApplicationsApplicationsUse the Premium Version as a diagnostic access point between a scanner and vehicle OBD-II system, especially when communication stability, power supply, or pin-level signal checks are required.OBD-II Scanner Connection CheckCheck whether the diagnostic scanner and vehicle OBD-II system are connected properly and whether communication conditions are stable.Power And Ground Line DiagnosisQuickly verify the condition of OBD2 power and ground lines using voltage display and LED indicator feedback.CAN Bus / Communication TroubleshootingUse 120Ω series mode and 16-pin breakout access to assist communication line diagnosis and CAN bus troubleshooting.Multimeter / Oscilloscope TestingProvides convenient access to OBD2 pins for multimeter and oscilloscope testing during deeper electrical diagnosis.Related ProductsRelated ProductsCompare related AUTOOL OBD2 breakout boxes, circuit testers, test leads, and ECU emergency power supply cables for diagnostic workflows.Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Used Car Diagnostic TesterAUTOOL OBD2 Breakout Box Protocol Detector Basic VersionRated 0 out of 5(0) From US$59.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Used Car Diagnostic TesterAUTOOL OBD2 Breakout Box Protocol Detector Upgraded VersionRated 0 out of 5(0) From US$109.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Automotive Circuit TesterAUTOOL BT30 ECU Emergency Power Supply Cable Includes 3A FuseRated 0 out of 5(0) From US$29.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Automotive Circuit TesterAUTOOL 92PCS Automotive Circuit Test Leads Kit, Multimeter Test Leads Kit with Carrying Case, Electrical Testers Wire Connectors Adapter Cables with Alligator ClipsRated 0 out of 5(0) From US$109.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. The options may be chosen on the product page Add to wishlist Add to compare Quick view iconQuick view Used Car Diagnostic TesterAUTOOL OBD2 Breakout Box Protocol Detector Premium VersionRated 0 out of 5(0) From US$139.00 Select options This product has multiple variants. The options may be chosen on the product page Manual And DownloadsManual And DownloadsDownload the AUTOOL OBD2 Breakout Box Protocol Detector Premium Version manual for setup, safe operation, pin access, and diagnostic workflow guidance. Click to enlargeAUTOOL OBD2 Breakout Box Premium Version ManualOpen the PDF manual for Premium Version instructions, safety notes, and diagnostic connector usage details. Download ManualNeed Operation Confirmation?Contact AUTOOL Store before use if you need confirmation about 8-26V external power input, 120Ω series mode, OBD2 pin testing, jumper use, load limits, or multimeter / oscilloscope connection.Email[email protected] WhatsApp 86 189 2647 7404 Click to enlargeWhat Is In The BoxWhat Is In The BoxReview the package image to confirm the Premium Version device and included package contents before ordering. Packing List is intentionally shown with one most relevant package image for a cleaner page layout.Main DeviceAUTOOL OBD2 Breakout Box Protocol Detector Premium VersionConnector BodyOBD2 diagnostic connector / breakout access device shown in the package imageDocumentationManual available for downloadBefore UseConfirm safety warnings, jumper use, load limit, and pin short-circuit restrictions before operationQuestions And AnswersThese answers cover OBD-II communication testing, external 8-26V power supply, 120Ω series mode, multimeter / oscilloscope testing, jumper safety, load limits, and pin short-circuit restrictions. What Is This OBD2 Breakout Box Used For? It is used to check OBD-II communication, power, ground, and diagnostic line conditions between a vehicle and a diagnostic scanner. It also gives technicians convenient access to all 16 OBD2 pins for deeper diagnostic testing. What Does The External 8-26V Power Supply Do? It provides stable external power support to the vehicle during diagnostics, helping reduce the risk of ECU data loss caused by unstable power supply. What Is The 120Ω Series Mode Used For? The 120Ω series mode helps stabilize CAN bus communication. It also allows ECU data to be read through the cable even when the ECU is removed, expanding diagnostic options for repair and inspection work. Can I Use It With A Multimeter Or Oscilloscope? Yes. The fully analog OBD2 interface is compatible with multimeters and oscilloscopes, allowing deeper testing of voltage, signal, and communication line conditions. Can I Short The OBD Pins With A Jumper? Do not short-circuit the input jack if you are not sure about the vehicle electrical circuit. Do not directly short-circuit pin 16, pin 4, and pin 5. Can I Connect A Load Device? Do not use this product to connect a load device with a power exceeding 1 ampere.Warranty And ContactWarranty And ContactFor Premium Version model confirmation, Basic / Upgraded / Premium version comparison, external 8-26V power use, 120Ω series mode, OBD2 pin testing, multimeter / oscilloscope connection, manual support, or safety confirmation, contact AUTOOL Store directly.Pre-Sales And Product SupportUse support if you need help confirming version differences, safe diagnostic setup, external power supply use, jumper operation, load limits, pin-level access, or whether your planned multimeter / oscilloscope test is appropriate.Premium Version model confirmationBasic / Upgraded / Premium version comparisonExternal 8-26V power supply use confirmation120Ω series mode questionsOBD2 pin testing and multimeter / oscilloscope connection guidanceManual download supportSafety and jumper operation confirmation3-year warranty and lifetime maintenance supportEmail Support[email protected] WhatsApp Support 86 189 2647 7404