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Easy To Use - The tester will automatically detect the pin position, the release time of the action, and the consistency of the relay in each test phase. If the tester lights up the green LED light, the relay is normal; if the red LED light is on, the relay is abnormal.
To Operate - First, clip the alligator clip of the tester to the car battery, the black clip on the negative pole, and the red clip on the positive pole. When the red LED light is on, it means the tester can start the test. Check the relay before testing. Select the appropriate socket according to the pins, insert the relay into sockets, press the "Test" button, and the tester will automatically detect the pin position of the unknown relay.
Fitment - Suitable for most general-purpose automotive relays on the market. When testing, it needs to be connected to the car's 11V-15V battery. The car battery must be a 12V battery, and the battery voltage must be between 11V-15V; 2. The applicable coil resistance is preferably above 20 ohms.
Compact - Our automotive Relay tester is small and easy to carry around for on-the-go jobs or for easy storage. Its compact design allows easy use no matter where you are.
Simple and Quick - With our patented design this relay tester will give you the results you need quickly and easily.
Compatibility: 9038 replaces 9036 9037, suitable for most domestic, Japanese, Korean and German fuel pumps, window motors, headlight switches and other devices using automotive relays
Plug and Play: can be installed vertically or horizontally, just plug in the fuel pump relay position to directly control the fuel pump circuit, very convenient, saving a lot of time and money
New Upgrade: The shell is made of high-quality materials, dustproof and waterproof; the silver contacts have high conductivity to ensure continuous and stable operation of the power supply
Operating Range: Up to 20 amps continuous current, 30 amps surge current (12V), suitable for most car models on the market, please see the picture for specific models.
Products Include: 6* relay switches. Please check the OEM part number before purchasing and make sure your part number matches this part number to avoid purchasing the wrong product
Fitment: This relay bypass switch kit compatible with Audi 2004-2006, Compatible with BMW 1995-2006; Compatible with Volkswagen 1999-2005. Replacement for GM for Chrysler for Domestic for Korean. Replaces 9038, 9036, 9037.
Enhanced Control: The 9038 Relay Bypass Switch Kit provides independent control over vital automotive components which using relays such as fuel pumps, window motors, headlight switches, air conditioning compressors and cooling fans, streamlining the fuel injection testing process and allowing for precise monitoring.
Reliable Performance: Built for durability and functionality, this relay bypass switch kit offers powerful performance by running all 12V DC motors with the push of a switch. Controls relay circuit independent of “key on” systems, ensuring reliable operation for various automotive components.
Effortless Installation: Enjoy a easy setup with the plug-and-play design of this switch kit. Simply insert it into the fuel pump relay position to gain direct control over the fuel pump circuit, enabling quick and efficient electrical diagnosis.
Excellent Quality: This switch kit is made of Steady materials, ensuring reliability and durability to withstand long-term use in various conditions.
An automotive relay tester is a crucial tool for diagnostics and troubleshooting in automotive electrical systems. Relays are essential components that control various functions, such as the fuel pump, headlights, and air conditioning systems. A reliable relay tester helps quickly identify faults within these relays, avoiding the need for guesswork and potentially costly replacements. Selecting the right automotive relay tester can save time and increase efficiency in a workshop or for personal vehicle maintenance. This guide will provide the key features to consider when choosing the best automotive relay tester for your needs.
Key Features to Consider
Compatibility and Functionality
Relay Type Compatibility: Ensure that the tester is compatible with the types of relays used in your vehicles, including standard, mini, and micro relays. Some testers offer universal functionality.
Testing Features: Look for testers that can check for common relay issues like open circuits, high resistance, or failure to close, providing comprehensive diagnostics.
Ease of Use
User Interface: A simple, intuitive interface is essential for quick assessments. Digital displays can offer clear, immediate feedback on relay status.
Instructional Guidance: Units that provide step-by-step testing guidance or troubleshooting tips can be particularly helpful, especially for less experienced users.
Portability and Durability
Compact Design: A compact and lightweight tester is beneficial for ease of use, especially when working in tight spaces or if you need to carry it frequently.
Rugged Build: Consider a tester designed with a durable casing that can withstand the rough environment of an automotive workshop.
Connectivity and Power
Battery Operation: Many relay testers are battery-operated, offering convenience and portability. Check the battery life and type to ensure it suits your usage patterns.
External Power Options: Some testers can be powered or charged via a vehicle’s battery, providing flexibility during extended use.
Additional Features
Built-in Protection: Features like over-voltage protection and polarity error indication can prevent damage to the tester and the vehicle being serviced.
Expandability: Some testers can connect to PCs or diagnostic software, allowing for enhanced data analysis and storage of test results.
Pros and Cons
Pros of Automotive Relay Testers
Cons of Automotive Relay Testers
✔️ Quick and accurate diagnostics of relay issues
❌ High-quality testers with advanced features can be costly
✔️ Helps prevent unnecessary replacements of non-faulty relays
❌ May require a learning curve to interpret results effectively
✔️ Portable design suitable for fieldwork or shop use
❌ Basic models might lack features needed for complex diagnostics
✔️ Enhances overall efficiency in vehicle electrical maintenance
❌ Not all models will be compatible with every type of automotive relay
Quick Tips
Assess Specific Needs: Evaluate the most common types of relays you encounter in your automotive work to choose a tester that best matches those needs.
Prioritize Durability and Accuracy: Select a tester that not only withstands workshop conditions but also delivers precise diagnostics to ensure reliable maintenance.
Consult Product Reviews: Research user reviews and professional feedback to gauge the effectiveness and reliability of different relay testers before making a purchase.
Choosing the right automotive relay tester involves balancing functionality, ease of use, portability, and durability to meet your specific diagnostic needs. By selecting a comprehensive tool, you enhance your capability to maintain and repair vehicle electrical systems efficiently, ensuring optimal vehicle performance and customer satisfaction. Investing in a high-quality relay tester is a smart decision for any automotive professional looking to streamline their diagnostic toolkit.
