Can anyone help? I have a 1999 Tacoma pickup that has a strange problem with the turn signal lights. The problem: the turn signal lights work correctly except when the headlights are turned on. With the head lights on and the left turn signal on, the turn signal light goes out (front and rear). With the head lights on and the right turn signal on the right turn signal stay full on, meaning no flashing (front and rear). Could this be caused by the "Intergration relay"? or is there a different cause. Remember, when the head lights are off, the turn signal lights work correctly. All lamps and fuses have been checked.
Thanks for your assistance.