toyota cavalier 2 & 4 TAIL LIGHT wiring instructions
1. Pop off the steering column top cover. You may need to unscrew 3 t-25 torx head/7mm bolts under the steerig wheel
column to do this.
2. Locate the white wire on the turn signal switch harness. This is the feed from the brake switch, which tells the signals
to flash on and off the brake light on each side. Do not confuse it with the gray cruise control wire. DOUBLE CHECK that
it IS the brake wire by testing with a multimeter or a test light. It should have +12 volts when you press the brake pedal.
Cut the white wire and tape it off. Give it an inch or so, just in case if you have to reconnect it in the future. 3. Reinstall the steering column cover. 4. In the trunk, either cut off the factory plug to the brake light, or pull the wires out of the plastic connector. You can
solder the new connections or use butt connectors (your choice). 5. Rewire the plug as follows: the black wire (ground) goes to black, brown wire (marker lights +) goes to brown, yellow
from car (left signal +) to light blue on Left tail, green from car (right signal +) to light blue on Right tail.
6. Tap into the white wire(s) that go to the third brake light/high stop light on the spoiler or
rear deck. If you don't have one, you should at least have the wiring for it under the rear
deck. Using some extra wire, connect the white wire from the third brake light to the
remaining wires: yellow on left tail, green on right tail. NOTE! Some 02 models (and possibly
03 models) should use the yellow 3rd brake light wire. DOUBLE CHECK the brake wires with a
multimeter or test light first.