12V Automotive Relay Tester
-
Code:70338
-
Weight:0.287 Kgs
Overview:
✔ Professional relay diagnostic tool for 12V vehicle systems
✔ Suitable for common 4-pin and 5-pin automotive relays
✔ Compatible with relay coil resistance above 20 Ω
✔ Tests relay pin configuration and contact operation
✔ Measures contact opening and closing response times
✔ Built-in dual-color LED indication for quick diagnostics
✔ Fast and simple operation suitable for workshop use
✔ Supports vehicle systems with nominal voltage 12V (max. 15V)
The 12V Automotive Relay Tester is a fast and easy-to-use diagnostic tool designed for testing common automotive relays in vehicles with 12V electrical systems. The device allows technicians to quickly determine whether a relay is operating correctly without requiring additional measuring equipment.
The tester automatically monitors relay pin configuration, verifies relay contact functionality, and measures the switching response time during repeated test cycles. A built-in dual-color LED indicator immediately displays the test result for rapid diagnosis.
Suitable for workshops, vehicle diagnostics, electrical troubleshooting, and maintenance applications.
Features
✔ Fast and user-friendly relay testing process
✔ Suitable for common automotive relays with coil resistance above 20 Ω
✔ Supports 12V vehicle electrical systems (maximum 15V)
✔ Compatible with both 4-pin and 5-pin relays
✔ Automatic relay pin configuration identification
✔ Verifies relay contact functionality
✔ Tests contact opening and closing response times
✔ Built-in dual-color LED status indication
✔ Compact design for workshop and mobile use
Technical Specifications
- Operating voltage: 12V DC (maximum 15V)
- Relay compatibility: Common automotive relays
- Supported relay types: 4-pin and 5-pin relays
- Minimum relay coil resistance: >20 Ω
- Status indication: Dual-color LED
- Power connection: Battery clamps (red/black crocodile clips)
Operating Procedure
- Connect the power supply cable to the vehicle's 12V battery:
- Connect the black crocodile clip to battery negative (-)
- Connect the red crocodile clip to battery positive (+)
- The tester is ready when the LED lights red.
- Select relay type before inserting the relay:
- Set switch to 4 PIN for 4-pin relays
- Set switch to 5 PIN for 5-pin relays
- Insert the relay into the appropriate relay socket.
- Press the test button to begin testing.
- The tester checks relay pin configuration:
- Red LED indicates incorrect pin layout or damaged relay terminals.
- If the pin configuration is correct, the tester activates the relay ten consecutive times:
- Contact opening and closing times are measured.
- Red LED indicates exceeded switching time limits.
- The tester verifies relay consistency:
- Green LED = relay passed the test
- Red LED = relay fault detected
- Disconnect the battery cables and remove the relay after testing.
Applications
Suitable for:
✔ Automotive workshops
✔ Vehicle electrical diagnostics
✔ Fault detection in relay systems
✔ Automotive maintenance and repair
✔ Professional and DIY use
