The Launch RelayCheck Pro automotive relay tester checks 12 V or 24 V car and truck relays. It tests the contact under load and repeats the relay activation test to detect excessive resistance and check continuity during each cycle.
It connects directly or uses black alligator clips for relays with different terminal layouts. It automatically identifies the terminal configuration, while indicator lights and flashing codes signal pass or fail and help diagnose low or high voltage, as well as internal device errors. It is powered by the vehicle battery and includes protection that requires a 15- to 30-second cooldown between consecutive tests.
- Type: OBD 2 relay tester
- Connection: Cable
- Operating voltage: 12 V / 24 V
- Tests: Contact testing under load and activation cycles
- Test connection: Direct or with black alligator clips
- Terminal identification: Automatic
- Indicators: Pass/fail indicator lights and flashing codes for low voltage, high voltage, and internal errors
- Power supply: From the vehicle battery, with a current requirement of 3 A
- Cooldown time: 15 to 30 seconds between consecutive tests
- Compatibility: Car and truck relays
- Package contents: Relay tester, test cable, alligator clips, carry case, and user manual
Connectivity
- Connection Type
- with Cable
Compatibility
- Type
- OBD 2
- Functional
- -
Specifications
- Features
- -
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.