AUTOOL OBD2 Breakout BoxProduct OverviewThe AUTOOL OBD2 Protocol Checker Automotive Breakout Box Upgraded Version is an automotive diagnostic connector detector for OBD2 diagnostic link connectors. It provides easy access to the OBDII connector, real-time OBD2 interface voltage display, LED indicators for power, ground and communication signal monitoring, and 16-pin breakout access for safer protocol, power, ground and signal testing.OBD Voltage Display LED Indicator 16-Pin OBD Interface 45cm Extension CableDC 8V-16VWorking Voltage2.0ARated Load45cmTPU Cable3 YearsWarranty Click to enlarge Click to enlargeKey FeaturesKey FeaturesThe upgraded OBD2 breakout box helps technicians monitor OBD2 power, ground, communication pins and voltage display while connecting diagnostic instruments, multimeters, oscilloscopes or ECU backup power more conveniently.OBD Voltage DisplayThe built-in display quickly measures and shows OBDII interface voltage, helping users check whether the OBD2 connector voltage is normal.LED Indicator LightLED indicators help show vehicle OBD2 power, ground and communication signal status. Red indicates pin 16 power, green indicates pin 4 / 5 ground, and yellow indicates communication signal activity.16-Pin Input JackThe built-in input jack fully emulates the OBDII 16-pin layout and can be used with a 4mm banana plug, multimeter or oscilloscope for pin-level testing.Diagnostic Instrument InterfaceWhen the diagnostic instrument communicates with the vehicle, the breakout box allows quick access to the OBD2 16 pins for monitoring and diagnosis.DC Power JackThe DC interface can connect to a 12V backup battery, helping supply temporary ECU power and support battery replacement or ECU power maintenance scenarios.45cm TPU Extension CableThe 45cm TPU cable is designed with high elasticity, high flexibility and high strength for easier use around vehicle OBD2 ports. Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlarge Click to enlargeSpecificationsUpgraded Version SpecificationsConfirm the upgraded version voltage range, load, cable length, size, interface functions, LED indicator, voltage display and safety limits before operation.Product And InterfaceProductAUTOOL OBD2 Breakout Box Protocol Detector Upgraded VersionDiagnostic PortOBD IIFunctionOBD2 protocol, power, ground, voltage and signal monitoring through breakout accessConnector16-pin OBD interface with built-in input jackMultimeter / Oscilloscope TestingSupported through the 16-pin input jack and 4mm banana plug-compatible accessElectrical And SizeWorking VoltageDC 8V-16VRated Load2.0A specification shown in the parameter imageSafety Load NoteDo not connect an external load device exceeding 1A during operation, following the original safety warningOperating Temperature-20°C-70°C / -4°F-158°FOBD II Extension Cable Length45cmMain Size147mm × 50mm × 35mmSide Profile40mm × 24mmConnector Width24mmUpgraded Version FunctionsVoltage DisplayYesLED IndicatorYesPower CableYes120Ω Series Resistor ModeNo; this is supported by the Premium VersionWarranty3-year warranty for eligible non-human damage cases and lifetime maintenance supportProduct StructureStructure OverviewThe breakout box fully emulates the OBD2 interface and exposes the key 16-pin connector positions, making it easier to monitor power, ground, CAN, K-line, L-line and custom pins during vehicle diagnosis.Pin 4Body GroundPin 5Signal GroundPin 6CAN HighPin 14CAN LowPin 7K-LinePin 15L-LinePin 16Battery Positive Click to enlarge Product And InterfaceProductAUTOOL OBD2 Breakout Box Protocol Detector Upgraded VersionDiagnostic PortOBD IIFunctionOBD2 protocol, power, ground, voltage and signal monitoring through breakout accessConnector16-pin OBD interface with built-in input jackMultimeter / Oscilloscope TestingSupported through the 16-pin input jack and 4mm banana plug-compatible access Electrical And SizeWorking VoltageDC 8V-16VRated Load2.0A specification shown in the parameter imageSafety Load NoteDo not connect an external load device exceeding 1A during operation, following the original safety warningOperating Temperature-20°C-70°C / -4°F-158°FOBD II Extension Cable Length45cmMain Size147mm × 50mm × 35mmSide Profile40mm × 24mmConnector Width24mm Upgraded Version FunctionsVoltage DisplayYesLED IndicatorYesPower CableYes120Ω Series Resistor ModeNo; this is supported by the Premium VersionWarranty3-year warranty for eligible non-human damage cases and lifetime maintenance support Product StructureStructure OverviewThe breakout box fully emulates the OBD2 interface and exposes the key 16-pin connector positions, making it easier to monitor power, ground, CAN, K-line, L-line and custom pins during vehicle diagnosis.Pin 4Body GroundPin 5Signal GroundPin 6CAN HighPin 14CAN LowPin 7K-LinePin 15L-LinePin 16Battery Positive Product ComparisonProduct ComparisonCompare the Basic, Upgraded and Premium versions before choosing the right OBD2 breakout box for voltage display, LED status monitoring, power cable support and 120Ω series resistor mode.Basic VersionSuitable for simple protocol, power, ground, 16-pin access and built-in input jack testing; no voltage display, LED indicator, power cable or 120Ω modeUpgraded VersionAdds OBD voltage display, LED indicator and power cable; working voltage is DC 8V-16V; does not support 120Ω series resistor modePremium VersionAdds 120Ω series resistor mode and supports a wider DC 6V-30V working voltage rangeDecision CheckCompare voltage display, LED indicator, power cable, 120Ω mode, working voltage range, 45cm cable, load, and OBD2 pin access needs before ordering Click to enlargeManual And DownloadsManual And DownloadsDownload the OBDII Protocol Detector Breakout Box user manual for interface, operation, pin access and safety instructions. Click to enlargeOBDII Protocol Detector Breakout Box User ManualOpen the PDF manual for the upgraded version setup, interface description, diagnostic access, and safe-use guidance. Download ManualNeed Setup Confirmation?Contact AUTOOL Store before ordering if you need to confirm Basic / Upgraded / Premium version differences, OBD2 pin access, DC power jack use, load limits, or accessory compatibility.Email[email protected] WhatsApp 86 189 2647 7404 Click to enlargeWhat Is In The BoxWhat Is In The BoxThe Packing List module uses only the most relevant package image. Review the included OBDII breakout box, test leads, DC / power cable accessories and manual before ordering.Main UnitOBDII Protocol Detector Breakout BoxExtension Cable45cm OBD II extension cableTest LeadsMultiple color test leads shown in the package imagePower CableBattery / DC power cable accessories shown in the package imageManualUser manualNoteConfirm included accessories according to the product option and package imageRelated ProductsRelated ProductsCompare the OBD2 breakout box versions and related circuit testing tools before choosing your diagnostic setup.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 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 Automotive Diagnostic MultimeterAUTOOL DM303 Digital Multimeter Car Circuit TesterRated 0 out of 5(0) From US$190.00 Select options This product has multiple variants. The options may be chosen on the product page Select options This product has multiple variants. 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Read the safety notes before using jumpers, load devices, multimeters, oscilloscopes or ECU backup power connections.Warm Tips And Safety NotesThis 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, 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 power exceeding 1 ampere.Do not directly short-circuit pin 16, pin 4, and pin 5 of this product.Although the product specification lists 2.0A load, follow the safety warning and avoid connecting external load devices exceeding 1A during operation.Use a multimeter or oscilloscope only when you clearly understand the vehicle circuit and OBD2 pin function.Questions And AnswersThese answers cover OBD2 breakout box use, Basic / Upgraded / Premium version differences, 120Ω mode, multimeter / oscilloscope access, LED indicators, ECU backup power and safe operation limits. What Is An OBD2 Breakout Box Used For? An OBD2 breakout box provides access to the OBD2 diagnostic link connector so users can monitor power, ground, protocol signals and voltage, while also making it easier to connect a diagnostic tool, multimeter or oscilloscope to the 16 OBD2 pins. What Is The Difference Between Basic And Upgraded Version? The Upgraded Version adds OBD voltage display, LED indicator and power cable support. The Basic Version is mainly for basic protocol, power, ground, 16-pin access and built-in input jack testing without these upgraded display and indicator functions. Does The Upgraded Version Support 120Ω Series Resistor Mode? No. The Upgraded Version does not support 120Ω series resistor mode. The comparison chart identifies this function as a Premium Version feature. Can I Use It With A Multimeter Or Oscilloscope? Yes. The built-in input jack fully emulates the 16-pin OBDII layout and can be used with a 4mm banana plug, multimeter or oscilloscope when you understand the vehicle circuit and pin function. What Do The LED Indicators Mean? The red indicator shows whether pin 16 power supply is normal. The green indicators show whether pin 4 and pin 5 ground are normal. The yellow indicators show whether related communication pins have signal waveform activity. Can It Supply Power To The ECU During Battery Replacement? Yes. The DC power jack can connect to a 12V backup battery to provide temporary ECU power support during battery replacement or related service work. What Should I Avoid When Using This Product? Do not directly short-circuit pin 16, pin 4 or pin 5. Do not use a jumper to short-circuit the input jack if you are not sure about the vehicle electrical circuit. Do not connect external load devices exceeding 1A, even though the product specification image lists a 2.0A load rating. What Vehicles Is It Compatible With? The OBD2 Breakout Box can be adapted to vehicles with an OBD2 interface and is designed for OBDII diagnostic link connector access.Warranty And ContactWarranty And ContactFor product support, Basic / Upgraded / Premium version selection, OBD2 pin access, LED indicator logic, voltage display, DC backup power use, load limits, manual support, or accessory confirmation, contact AUTOOL Store directly.Pre-Sales And Product SupportUse support if you need help choosing the right OBD2 breakout box version, confirming whether 120Ω mode is required, checking multimeter / oscilloscope access, understanding LED indicators, or confirming safe ECU backup power operation.3-year warranty for eligible non-human damage casesLifetime maintenance supportBasic / Upgraded / Premium version selectionOBD2 pin access, voltage display, LED indicator and DC power jack supportSafety confirmation for load devices, jumpers, and pin short-circuit riskEmail Support[email protected] WhatsApp Support 86 189 2647 7404