When installing the Curt trailer wiring harness # C59236 the red wire is for the brake lights. Your 1997 Lexus ES 300 has a separate wiring system. This means that the turn signals and brake lights are on different circuits/bulbs. The yellow wire is for left turn signal, green is for right turn signal, red is for brake lights. And of course brown is for running/tail lights and white is the ground.
There are some vehicles that would require grounding that red wire but not on your Lexus.... view full answer...
I have attached a copy of the instructions for the Tekonsha Upgraded ModuLite Circuit Protected Vehicle Wiring Harness # 119179 so that you can have a copy.
We do offer this same item as a Kit # 119179KIT that includes a tester and the required connectors to tap into the wiring on your 2002 Lexus ES 300.
You will need a Test Light # PTW2993 to ensure that you are connecting to the correct power wires on your Lexus tail light harness. One wire will be the positive and the 2nd wire the... view full answer...
Go To Results