JF107 Automotive Relay Tester

Check a compatible automotive relay with a dedicated test cycle. The JF107 powers from a vehicle battery and gives a red or green indication after checking the supported relay's operation.

✅ Check the relay away from guesswork - A dedicated test sequence checks supported relay switching and release behaviour.

✅ Test supported four- and five-pin types - Separate socket choices accommodate the compatible relay arrangements described for the tester.

✅ See the result on an indicator - Red and green LEDs provide a visible outcome after the test cycle.

Give the Relay Its Own Test

An electrical fault can involve more than the relay, but checking that component separately gives the repair process a useful reference. The JF107 cycles a compatible relay repeatedly and checks its operating consistency as part of the sequence.

Match the relay pin arrangement and electrical requirements before connecting it. A red indication can mean a failed test or an unsupported relay, so interpret the result with the instructions rather than replacing a part on the light alone. Further circuit diagnosis may still be needed.

Technical details

• Model: JF107
• Type: automotive relay tester
• Supported arrangements: compatible four- or five-pin relays
• Supply described: vehicle battery, 11-25 V
• Coil resistance requirement: at least 20 ohms
• Result display: red/green LEDs

Add a dedicated relay check to your automotive electrical diagnosis.