/en/qa/tag/toy-20 Powered by Question2Answer /en/qa/86023/are-there-any-diodes-in-the-toy-10-t-harness-toy-2-and-ty-20 Are there any diodes inside the harness that could go bad?  I am still working on an issue with my 2019 Tundra and just found out that some harnesses have diodes or resistors in them.  I just want to be able to test the harness if the new unit I get still fails to connect to the CAN-BUS.  The TOY-10 consists of 2 harnesses.  TOY-2 and TY-20. Toyota /en/qa/86023/are-there-any-diodes-in-the-toy-10-t-harness-toy-2-and-ty-20 Thu, 10 Jan 2019 11:16:21 +0000