Relay Bypass Switch Kit Amp Loop, Relay Tester Diagnostic Scan Tool Switch 9038A Tips: The compatibility chart is only for referrence, not 100% accurate. Please make sure for the fitment by comparing your original part and part number with our product. Part Number: 9038A Features & Details: 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. Curre.