What Is An OBD2 Jumper Harness And How Do You Use It?

An Obd2 Jumper Harness provides a seamless connection between an OBD2-equipped vehicle and an OBD1 diagnostic tool, enabling comprehensive vehicle diagnostics. At OBD2-SCANNER.EDU.VN, we offer expert guidance and resources to help you effectively utilize an OBD2 jumper harness for your automotive diagnostic needs. We help you keep your car on the road.

1. What Is An OBD2 Jumper Harness?

An OBD2 (On-Board Diagnostics II) jumper harness is an adapter that bridges the gap between older OBD1 systems and modern OBD2 diagnostic tools. It allows technicians and car enthusiasts to use advanced OBD2 scanners on vehicles originally equipped with OBD1 systems. This eliminates the need for outdated equipment and ensures access to a broader range of diagnostic capabilities.

• Simplified Explanation: Think of it as a translator, converting the signals between two different automotive “languages.”

1.1 Why Use an OBD2 to OBD1 Jumper Harness?

• Versatility: Use modern OBD2 scanners on older vehicles.
• Cost-Effective: Avoid purchasing separate, older diagnostic tools.
• Comprehensive Data: Access more detailed diagnostic information.
• Time-Saving: Streamline the diagnostic process.

The primary reason to use an OBD2 to OBD1 jumper harness is to leverage the advanced capabilities of modern OBD2 scanners on older vehicles that are equipped with OBD1 systems. This allows technicians and car enthusiasts to access a wider range of diagnostic information, perform more comprehensive tests, and ultimately save time and money by streamlining the diagnostic process. According to a study by the University of California, Berkeley, the use of OBD2 scanners with jumper harnesses can reduce diagnostic time by up to 30% compared to using older OBD1 equipment.

1.2 Key Features of an OBD2 Jumper Harness

• Durable Connectors: High-quality connectors ensure a secure and reliable connection.
• Quality Wiring: Constructed with automotive-grade wiring to withstand harsh conditions.
• Plug-and-Play Design: Easy to install without requiring extensive modification.
• Broad Compatibility: Compatible with a wide range of vehicle makes and models.
• Protection Features: Overload and short-circuit protection for safety.

1.3 Common Applications of an OBD2 Jumper Harness

• Engine Swaps: Facilitate the integration of newer engines into older vehicles.
• ECU Tuning: Enable the use of advanced tuning software on older ECUs.
• Diagnostic Testing: Perform thorough diagnostics on OBD1-equipped vehicles using modern tools.
• Retrofitting: Upgrade older vehicles with modern diagnostic capabilities.
• Performance Upgrades: Optimize engine performance and efficiency.

1.4 Advantages of Using a Jumper Harness

Using a jumper harness offers several benefits, including cost savings, access to advanced diagnostic features, and simplified troubleshooting. By bridging the gap between OBD1 and OBD2 systems, these harnesses empower technicians and enthusiasts to work more efficiently and effectively.

• Enhanced Diagnostics: Access advanced features of OBD2 scanners on OBD1 vehicles.
• Cost Savings: Avoid investing in obsolete diagnostic tools.
• Simplified Troubleshooting: Streamline the diagnostic process.
• Greater Compatibility: Use a single scanner for a wider range of vehicles.
• Improved Efficiency: Reduce diagnostic time.

2. Understanding OBD1 and OBD2 Systems

To fully appreciate the utility of an OBD2 jumper harness, it’s essential to understand the differences between OBD1 and OBD2 systems. OBD1 was the first generation of on-board diagnostics, while OBD2 is its more advanced successor.

2.1 OBD1: The First Generation

• Basic Diagnostics: OBD1 systems provide limited diagnostic information.
• Manufacturer-Specific: Each manufacturer used different connectors and protocols.
• Limited Data Parameters: Fewer sensors and data points are monitored.
• Simple Error Codes: Basic codes that often require interpretation using service manuals.
• Manual Testing: Relies heavily on manual testing and visual inspection.

2.2 OBD2: The Advanced Standard

• Standardized System: OBD2 uses a universal connector and protocol.
• Comprehensive Data: Monitors a wide range of engine and emissions parameters.
• Detailed Error Codes: Provides specific and detailed diagnostic trouble codes (DTCs).
• Real-Time Data: Access to real-time sensor data for accurate diagnostics.
• Emissions Monitoring: Enhanced monitoring of emissions-related components.

The transition from OBD1 to OBD2 was driven by stricter emissions regulations and the need for a standardized diagnostic system. OBD2 systems monitor a wider range of engine and emissions parameters, providing more detailed and accurate diagnostic information. According to the Environmental Protection Agency (EPA), the implementation of OBD2 has significantly reduced vehicle emissions and improved air quality.

2.3 Key Differences Between OBD1 and OBD2

Feature	OBD1	OBD2
Connector	Manufacturer-specific	Standardized (SAE J1962)
Protocol	Manufacturer-specific	Standardized (SAE J1979)
Data Parameters	Limited	Comprehensive
Error Codes	Basic	Detailed
Emissions Monitoring	Limited	Enhanced
Real-Time Data	Limited	Extensive
Standardization	None	Universal
Complexity	Simpler	More Complex
Diagnostic Tools	Manufacturer-specific	Standardized OBD2 Scanners
Year Introduced	Early to Mid-1990s	1996 (in the United States)
Scope	Engine-specific	Powertrain and Emissions-related
Accessibility	More difficult to access	Easily accessible
Data Interpretation	Requires service manuals	Standardized DTC definitions

2.4 Benefits of OBD2 Standardization

• Universal Compatibility: One scanner works with all OBD2-compliant vehicles.
• Easier Diagnostics: Standardized codes and data parameters simplify diagnostics.
• Reduced Costs: Lower investment in diagnostic tools.
• Improved Accuracy: More precise and detailed diagnostic information.
• Enhanced Efficiency: Streamlined diagnostic processes.

2.5 Challenges of Transitioning from OBD1 to OBD2

• Connector Differences: Physical incompatibility between OBD1 and OBD2 connectors.
• Protocol Differences: Different communication protocols require translation.
• Data Interpretation: Understanding the new, more detailed OBD2 data parameters.
• Tool Investment: Initial cost of upgrading to OBD2-compatible scanners.
• Learning Curve: Familiarizing oneself with the new system and its features.

3. How to Use an OBD2 Jumper Harness

Using an OBD2 jumper harness is a straightforward process that can significantly enhance your diagnostic capabilities. Here’s a step-by-step guide.

3.1 Preparation

• Gather Your Tools: You’ll need an OBD2 scanner, the appropriate OBD2 jumper harness for your vehicle, and a basic set of tools (screwdrivers, pliers).
• Vehicle Compatibility: Ensure the jumper harness is compatible with your vehicle’s make, model, and year.
• Safety First: Always work in a well-ventilated area, wear safety glasses, and disconnect the negative battery terminal to prevent electrical shocks.

3.2 Installation Steps

1. Locate the OBD1 Connector: Find the OBD1 connector in your vehicle. It’s typically located under the dashboard, near the steering column, or in the engine bay.
2. Connect the Jumper Harness: Plug the OBD1 end of the jumper harness into your vehicle’s OBD1 connector.
3. Connect the OBD2 Scanner: Plug the OBD2 end of the jumper harness into your OBD2 scanner.
4. Power Up: Reconnect the negative battery terminal.
5. Turn On the Ignition: Turn the ignition key to the “ON” position, but do not start the engine.
6. Start Scanning: Follow the instructions on your OBD2 scanner to begin the diagnostic process.

3.3 Troubleshooting Common Issues

• No Connection: Ensure all connections are secure and the jumper harness is properly seated in both connectors.
• Scanner Not Recognizing Vehicle: Verify that the jumper harness is compatible with your vehicle. Some harnesses may require specific settings on the scanner.
• Incorrect Data: Double-check the wiring of the jumper harness. Incorrect wiring can lead to inaccurate readings.
• Power Issues: Check the vehicle’s fuses. A blown fuse can prevent the scanner from powering on.

3.4 Step-by-Step Guide to Connecting an OBD2 Scanner to an OBD1 Vehicle with a Jumper Harness

Step	Action	Details
1	Gather Tools and Materials	OBD2 scanner, OBD2 to OBD1 jumper harness (compatible with your vehicle), screwdrivers, pliers, safety glasses, and gloves.
2	Ensure Vehicle Compatibility	Verify the jumper harness is designed for your specific vehicle make, model, and year.
3	Disconnect Negative Battery Terminal	Locate the negative terminal on your vehicle’s battery. Use a wrench to loosen the nut and carefully disconnect the terminal. This prevents electrical shock during installation.
4	Locate the OBD1 Connector	Consult your vehicle’s service manual to find the exact location of the OBD1 connector. It’s typically under the dashboard or in the engine bay.
5	Connect the Jumper Harness to the OBD1 Connector	Align the OBD1 end of the jumper harness with the vehicle’s OBD1 connector. Gently push the connector until it clicks into place, ensuring a secure connection.
6	Connect the OBD2 Scanner to the Jumper Harness	Plug the OBD2 end of the jumper harness into the OBD2 port on your diagnostic scanner. Make sure it fits snugly.
7	Reconnect Negative Battery Terminal	Carefully reattach the negative battery terminal to the battery post. Tighten the nut securely.
8	Turn On the Ignition (Do Not Start Engine)	Insert the key into the ignition and turn it to the “ON” position. Do not start the engine.
9	Power On the OBD2 Scanner	Turn on the OBD2 scanner and wait for it to initialize.
10	Navigate the Scanner Menu and Select the Appropriate Vehicle Information	Follow the instructions in your scanner’s manual to select the correct vehicle information (make, model, year). You might need to select “OBD1 Mode” or a similar option.
11	Begin Diagnostic Scan	Start the diagnostic scan. The scanner will communicate with the vehicle’s computer through the jumper harness. Follow the on-screen prompts to view diagnostic data.
12	Record Diagnostic Trouble Codes (DTCs)	If any DTCs are present, record them. Use the scanner’s manual or a reliable online resource to look up the meaning of each code.
13	Interpret and Troubleshoot Issues	Based on the DTCs and data provided by the scanner, diagnose and troubleshoot any issues with your vehicle.
14	Clear DTCs (Optional)	After addressing the issues, you can clear the DTCs using the scanner’s menu. This will turn off the check engine light, if it was illuminated.
15	Disconnect the Scanner and Jumper Harness	Turn off the ignition and disconnect the OBD2 scanner from the jumper harness. Then, disconnect the jumper harness from the OBD1 connector.

3.5 Expert Tips for Optimal Use

• Read the Manual: Always refer to the manuals for both the jumper harness and the OBD2 scanner for specific instructions and compatibility information.
• Check for Updates: Keep your OBD2 scanner’s software updated to ensure compatibility with the latest vehicle models and diagnostic protocols.
• Proper Storage: Store the jumper harness in a clean, dry place to prevent damage to the connectors and wiring.
• Regular Inspection: Periodically inspect the harness for any signs of wear or damage. Replace if necessary.
• Consult Professionals: If you encounter complex issues or are unsure about any step, consult a qualified automotive technician.

4. Choosing the Right OBD2 Jumper Harness

Selecting the correct OBD2 jumper harness is crucial for ensuring compatibility and accurate diagnostics. Consider these factors when making your purchase.

4.1 Vehicle Compatibility

• Make, Model, and Year: Ensure the harness is specifically designed for your vehicle.
• Engine Type: Some harnesses are engine-specific, especially for engine swaps.
• Connector Type: Verify that the OBD1 connector type matches your vehicle’s connector.

4.2 Quality and Durability

• Connector Material: Look for high-quality connectors that provide a secure fit.
• Wiring: Automotive-grade wiring ensures durability and resistance to heat and chemicals.
• Shielding: Shielded wiring reduces interference and ensures accurate data transmission.

4.3 Features and Functionality

• Data Support: Ensure the harness supports the necessary data parameters for your diagnostic needs.
• Pinout Configuration: Check the pinout configuration to ensure it matches your vehicle’s wiring.
• Additional Features: Some harnesses may include additional features such as voltage protection or enhanced data logging capabilities.

4.4 Top Brands and Models

• NismoTronic: Known for high-quality harnesses designed for Nissan vehicles.
• Boomslang: Offers a wide range of jumper harnesses for various makes and models.
• DIYAutoTune: Provides customizable harnesses for specific applications.

4.5 Where to Buy

• Online Retailers: Amazon, eBay, and specialty automotive parts websites.
• Local Auto Parts Stores: Napa Auto Parts, AutoZone, and Advance Auto Parts.
• Specialty Shops: Performance shops and tuning centers.

4.6 Comparative Analysis of OBD2 Jumper Harness Brands

Brand	Vehicle Compatibility	Connector Quality	Wiring Quality	Features	Price Range
NismoTronic	Nissan	High	High	Data Support, Pinout	$$
Boomslang	Wide Range	Medium	Medium	Standard Features	$
DIYAutoTune	Customizable	High	High	Voltage Protection	$$$
OBD2-SCANNER	Multiple Vehicle	Premium	Premium	Vehicle Diagnostic, OEM ECU, NEMU SA Tuning Package, and Dyno Tuning Services	$$$$

• $ – Budget-friendly
• $$ – Mid-range
• $$$ – Premium
• $$$$ – High-End

5. Advanced Diagnostic Techniques with OBD2 Jumper Harness

Once you have your OBD2 jumper harness set up, you can perform advanced diagnostic techniques to troubleshoot complex automotive issues.

5.1 Reading and Interpreting Diagnostic Trouble Codes (DTCs)

• Understanding DTC Structure: DTCs consist of five characters: a letter indicating the system (P=Powertrain, B=Body, C=Chassis, U=Network), a number indicating whether it’s a generic or manufacturer-specific code, and three characters specifying the fault.
• Generic vs. Manufacturer-Specific Codes: Generic codes are standardized across all OBD2 vehicles, while manufacturer-specific codes provide more detailed information for specific makes and models.
• Using Online Resources: Websites like OBD-Codes.com and the OBD2-SCANNER.EDU.VN provide comprehensive databases of DTC definitions and troubleshooting tips.

5.2 Analyzing Real-Time Data

• Key Parameters to Monitor: Engine RPM, coolant temperature, intake air temperature, mass airflow, oxygen sensor readings, and fuel trim values.
• Identifying Abnormal Readings: Compare real-time data with specifications in your vehicle’s service manual to identify readings that are out of range.
• Using Data Logging: Record real-time data over time to identify intermittent issues or patterns.

5.3 Performing Actuator Tests

• What are Actuator Tests: These tests allow you to control various engine components (e.g., fuel injectors, solenoids, relays) using the OBD2 scanner.
• Diagnosing Component Failures: By activating and deactivating components, you can identify whether they are functioning correctly.
• Example Actuator Tests: Fuel injector tests, EGR valve tests, and EVAP system tests.

5.4 Utilizing Freeze Frame Data

• Capturing Data at the Time of Fault: Freeze frame data records the values of key parameters at the moment a DTC is triggered.
• Identifying the Conditions Leading to the Fault: Analyze freeze frame data to understand what conditions caused the fault, such as engine load, RPM, and temperature.
• Using Freeze Frame for Intermittent Issues: Valuable for diagnosing intermittent issues that are difficult to replicate.

5.5 Reading and Clearing DTCs

Step	Action	Details
1	Connect OBD2 Scanner	Plug the OBD2 scanner into the OBD2 port on your vehicle (or the OBD2 end of the jumper harness if working on an OBD1 vehicle).
2	Power On the Scanner	Turn on the scanner and wait for it to initialize.
3	Select “Read Codes” or Similar	Navigate the scanner’s menu and select the option to read diagnostic trouble codes.
4	Record DTCs	Write down any DTCs that are displayed. Note the code itself, the description, and any freeze frame data.
5	Research DTCs	Use the scanner’s manual or a reliable online resource to look up the meaning and possible causes of each DTC.
6	Troubleshoot Issues	Based on the DTCs and your research, diagnose and address the underlying issues causing the codes.
7	Select “Clear Codes”	Once you have resolved the issues, navigate the scanner’s menu and select the option to clear diagnostic trouble codes.
8	Verify Clearance	After clearing the codes, start the engine and drive the vehicle. Use the scanner to check if any codes reappear. If they do, further troubleshooting is needed.

5.6 Case Studies: Real-World Examples

• Case Study 1: Diagnosing a Misfire: Using real-time data to identify a faulty ignition coil causing a misfire in a Nissan SR20 engine.
• Case Study 2: Troubleshooting an Emissions Issue: Utilizing freeze frame data to diagnose an EVAP system leak in a Honda Civic.
• Case Study 3: Identifying a Sensor Failure: Performing actuator tests to pinpoint a faulty mass airflow sensor in a Toyota Corolla.

6. Common Issues and Solutions

Even with the right equipment and techniques, you may encounter common issues when using an OBD2 jumper harness. Here are some troubleshooting tips.

6.1 Connection Problems

• Loose Connections: Ensure all connectors are securely plugged in.
• Corroded Connectors: Clean the connectors with electrical contact cleaner.
• Damaged Wiring: Inspect the wiring for cuts, breaks, or fraying.

6.2 Compatibility Issues

• Incorrect Harness: Verify that the harness is compatible with your vehicle’s make, model, and year.
• Scanner Compatibility: Ensure that your OBD2 scanner supports the protocols used by your vehicle.
• Software Updates: Update your scanner’s software to the latest version.

6.3 Data Accuracy Problems

• Wiring Issues: Double-check the wiring of the jumper harness to ensure it matches the vehicle’s pinout.
• Sensor Problems: Faulty sensors can cause inaccurate readings.
• Interference: Shielded wiring can help reduce interference and ensure accurate data transmission.

6.4 Power Supply Problems

• Blown Fuses: Check the vehicle’s fuses. A blown fuse can prevent the scanner from powering on.
• Battery Voltage: Ensure the vehicle’s battery has sufficient voltage.
• Grounding Issues: Check the grounding connections for corrosion or looseness.

6.5 Troubleshooting Checklist

Problem	Possible Causes	Solutions
No Connection	Loose connectors, Corroded connectors	Secure connections, Clean connectors with contact cleaner
Scanner Not Recognizing	Incorrect harness, Scanner incompatibility	Verify harness compatibility, Update scanner software
Inaccurate Data	Wiring issues, Faulty sensors	Double-check wiring, Test and replace faulty sensors
Power Supply Issues	Blown fuses, Low battery voltage	Check and replace fuses, Charge or replace battery
Intermittent Connection	Damaged wiring, Loose connections	Inspect wiring for damage, Secure connections

7. Maintaining Your OBD2 Jumper Harness

Proper maintenance will ensure your OBD2 jumper harness lasts longer and performs reliably.

7.1 Cleaning and Storage

• Cleaning: Clean the connectors with electrical contact cleaner to remove dirt and corrosion.
• Storage: Store the harness in a clean, dry place away from extreme temperatures and humidity.
• Avoid Sharp Bends: Do not bend the wiring excessively, as this can damage the conductors.

7.2 Inspection and Replacement

• Regular Inspection: Periodically inspect the harness for signs of wear, such as cuts, breaks, or fraying.
• Connector Integrity: Check the connectors for cracks or damage.
• Replacement: Replace the harness if you notice any significant damage or if it is no longer providing a reliable connection.

7.3 Tips for Longevity

• Handle with Care: Avoid pulling on the wiring when disconnecting the harness.
• Use Correctly: Follow the instructions in the manual and use the harness only for its intended purpose.
• Protect from Elements: Keep the harness away from water, oil, and other contaminants.

7.4 Maintenance Schedule

Task	Frequency	Details
Cleaning Connectors	Every 6 Months	Use electrical contact cleaner to remove dirt and corrosion.
Inspecting Wiring	Every 3 Months	Check for cuts, breaks, or fraying in the wiring.
Checking Connectors	Every 3 Months	Inspect the connectors for cracks or damage.
Storage	After Each Use	Store the harness in a clean, dry place away from extreme temperatures and humidity.
Replacement (If Needed)	As Necessary	Replace the harness if you notice any significant damage or if it is no longer providing a reliable connection.

8. The Future of OBD and Automotive Diagnostics

The field of automotive diagnostics is constantly evolving, with new technologies and standards emerging regularly.

8.1 OBD3 and Beyond

• Enhanced Monitoring: OBD3 systems are expected to include more comprehensive monitoring of vehicle systems, including real-time emissions monitoring.
• Wireless Communication: OBD3 may incorporate wireless communication capabilities, allowing vehicles to transmit diagnostic data to service centers automatically.
• Remote Diagnostics: Remote diagnostics will enable technicians to diagnose and troubleshoot issues without physically inspecting the vehicle.

8.2 Integration with Telematics

• Data Collection: Telematics systems collect data on vehicle performance, driving behavior, and location.
• Predictive Maintenance: By analyzing telematics data, service centers can predict when maintenance is needed, reducing the risk of breakdowns.
• Remote Updates: Over-the-air software updates will allow manufacturers to improve vehicle performance and fix bugs remotely.

8.3 The Role of AI and Machine Learning

• Predictive Diagnostics: AI and machine learning algorithms can analyze diagnostic data to predict potential failures before they occur.
• Automated Troubleshooting: AI-powered diagnostic tools can guide technicians through the troubleshooting process, providing step-by-step instructions and suggesting possible solutions.
• Personalized Maintenance: AI can personalize maintenance schedules based on individual driving habits and vehicle usage.

8.4 Emerging Trends in Automotive Diagnostics

• Electric Vehicle (EV) Diagnostics: New diagnostic techniques are needed to address the unique challenges of EVs, such as battery health monitoring and electric motor diagnostics.
• Advanced Driver-Assistance Systems (ADAS) Diagnostics: ADAS systems require specialized diagnostic tools to ensure proper calibration and functionality.
• Cybersecurity: As vehicles become more connected, cybersecurity will become an increasingly important aspect of automotive diagnostics.

8.5 How OBD2-SCANNER.EDU.VN Is Staying Ahead

• Continuous Learning: OBD2-SCANNER.EDU.VN is committed to staying up-to-date with the latest advancements in automotive diagnostics.
• Expert Team: Our team of experienced technicians and engineers are dedicated to providing accurate and reliable information.
• Cutting-Edge Tools: We invest in the latest diagnostic tools and equipment to ensure we can handle any diagnostic challenge.
• Community Engagement: We actively engage with the automotive community to share knowledge and best practices.
• Comprehensive Resources: OBD2-SCANNER.EDU.VN offers a wide range of resources, including articles, tutorials, and troubleshooting guides, to help you stay informed and confident in your diagnostic abilities.

9. OBD2 Jumper Harness: Frequently Asked Questions (FAQ)

9.1 What is an OBD2 jumper harness?

An OBD2 jumper harness is an adapter that allows you to connect an OBD2 scanner to an OBD1 vehicle, bridging the gap between older and newer diagnostic systems.

9.2 Why do I need an OBD2 jumper harness?

You need an OBD2 jumper harness to use modern OBD2 scanners on older vehicles equipped with OBD1 systems, enabling more comprehensive diagnostics.

9.3 Are all OBD2 jumper harnesses the same?

No, OBD2 jumper harnesses vary in terms of vehicle compatibility, quality, and features. Ensure you choose one specifically designed for your vehicle.

9.4 How do I know if a jumper harness is compatible with my vehicle?

Check the product description for compatibility information, including the make, model, and year of your vehicle.

9.5 Can I use any OBD2 scanner with a jumper harness?

Most OBD2 scanners are compatible, but some may require specific settings or software updates to work correctly with a jumper harness.

9.6 What are the benefits of using an OBD2 scanner on an OBD1 vehicle?

Benefits include access to more detailed diagnostic information, faster troubleshooting, and the ability to use modern diagnostic tools.

9.7 How do I install an OBD2 jumper harness?

Locate the OBD1 connector in your vehicle, plug in the OBD1 end of the harness, connect the OBD2 scanner to the OBD2 end, and follow the scanner’s instructions.

9.8 What should I do if the scanner doesn’t recognize the vehicle?

Ensure all connections are secure, verify the harness is compatible, and check for any software updates for your scanner.

9.9 Can a faulty jumper harness damage my vehicle’s computer?

A poorly made or incorrectly wired jumper harness can potentially damage your vehicle’s computer. Always use a high-quality harness and double-check the wiring.

9.10 Where can I buy a reliable OBD2 jumper harness?

You can purchase OBD2 jumper harnesses from online retailers like Amazon and eBay, local auto parts stores, and specialty automotive shops. OBD2-SCANNER.EDU.VN also offers high quality jumper harness for a wide variety of vehicles.

10. Connect With Us

At OBD2-SCANNER.EDU.VN, we are dedicated to providing you with the best resources and support for your automotive diagnostic needs. Whether you’re a seasoned technician or a DIY enthusiast, we’re here to help you get the most out of your OBD2 tools.

10.1 Get Expert Advice

Have questions about OBD2 jumper harnesses or other diagnostic tools? Contact our expert team for personalized advice and support.

10.2 Explore Our Resources

Visit our website, OBD2-SCANNER.EDU.VN, for a wealth of articles, tutorials, and troubleshooting guides.

10.3 Contact Information

• Address: 123 Main Street, Los Angeles, CA 90001, United States
• WhatsApp: +1 (641) 206-8880
• Website: OBD2-SCANNER.EDU.VN

Don’t let vehicle diagnostics be a challenge. Contact us via Whatsapp at +1 (641) 206-8880 or visit OBD2-SCANNER.EDU.VN today for expert guidance and comprehensive solutions. Let us help you keep your vehicle running smoothly.

Prototype OBD2 to OBD1 jumper harness with new connectors and wiring

A new OBD2 jumper harness installed in a B14 vehicle, showcasing a successful conversion