Will T-One Vehicle Wiring Harness Fit 2025 Lexus NX 350
Updated 09/29/2025 | Published 09/10/2025
Question:
Has the incorrect wiring on the pre-wired interconnecting harnesses that are included in the TK73VR been corrected yet i.e. the incorrect wiring talked about in your TK73VR video?
asked by: Dan M
Expert Reply:
Hi Dan; this appears to be a factory issue that Tekonsha has never corrected. We have had many customers successfully install the # TK73VR as is but some have had to modify the wiring harness because it wasn't pinned correctly. This is the only custom wiring harness available, so it even though it might be a bit pain if you find you have to reconfigure the Tekonsha harness it is better than splicing into your vehicle wiring.
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Robin H.
9/29/2025
Hi Dan, did you end up installing the Tekonsha harness, and if so, how did it go? I'm curious to know if you had to modify the wiring, as your experience could help others facing the same issue.