How to Wire a 2007 Toyota FJ Cruiser for a 90885 Prodigy P2 Electric Brake Controller

Question:

I have a 2007 FJ Cruiser with the 4 pin tow wiring included from the Mfg. Now I am putting in a 7 Pin connector and Brake Controller. I need to know which wire under the dash is used to connect the brake light lead on the controller. Do you happen to know?

asked by: Rick C

Expert Reply:

The Toyota stoplight wire color is normally green with a white tracer, but you would need to test to confirm whether this is correct for your 2007 FJ Cruiser.

Locate your stoplight switch and use a circuit tester on the wires that come out of it. The wire you are looking for will get power when the brake pedal is pressed, but will not have a power reading when the pedal is released. Connect the red wire from the P2 brake controller to this wire.

You can view some additional information on wiring for a brake controller below, as well as an installation video of a similar brake controller being put on a 2008 FJ Cruiser.

expert reply by: Sarah L