1. Wide Compatibility - 9038A relay bypass switch kit Compatible with Japanese, Korean, and German vehicles like GM, BMW, Audi, and Chrysler. Fits most fuel pumps, cooling fans, window motors, headlight switches, air conditioning compressors and other devices using automotive relays 2. Precise & Independent Control - This relay switch kit allows for independent control of the relay circuit via an ON/OFF switch, enabling precise control of various car components and saving a lot of time 3. Current Monitoring Function - Equipped with an amplification loop function, it can be used with a clip-on amplifier probe/lab oscilloscope to monitor current. It helps identify abnormal conditions quickly, simplifying the diagnostic process 4. Fast Diagnostics - Plug and play, just plug in the fuel.
