Where Is the Brake Controller Port on a 2005 Lexus GX 470

Question:

I have the 3040-p adapter. but I can not find or locate where to plug it into. Can you help locate the plug under the dash.

asked by: Steve

Expert Reply:

The brake controller port (if present) on your 2005 Lexus GX 470 should be located underneath the driver side dash taped to another harness near the emergency brake pedal. Please note that these are not always easy to find so you will just want to be patient. If you are using a Tekonsha brake controller like the Tekonsha Prodigy P3 part # 90195 then the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers part # 3040-P is indeed correct.

There is also a chance that your Lexus GX 470 did not come with a factory brake controller port and if that is the case you will need to hardwire one in with the Brake Control Plug-In Harness part # 20127.

expert reply by: Jesse M