1998 Toyota Corolla 4 cyl Front Wheel Drive Automatic 180000 miles
While driving at night I was going from low to high beam for on coming traffic. All at once I had no lights at all, then by moving the switch on and off and going from low to high beam I got my lights back. The next week while driving I would have no trouble until I tried using High beams, the lights would flicker off, but I could get them back. Now, I have not head lights-high or low beam. When I first start the car the daytime running lights work, but after a few seconds I can here a relay turn the lights off. I can here relays making noise for turning the headlights on, side marker, and low beams, I can here relays kick on and off for high beam. Does anyone have any ideas on common trouble for this behavior?
Faulty wiring or faulty headlamp switch. Start by testing the headlamp relay(s) for precaution, if OK suspect switch.
January, 10, 2010 AT 7:43 PM
January, 10, 2010 AT 9:29 PM
I tried tracing the ground wire from the DLR relay, cause It seemed as though it wasn't grounded. Maybe there is something within the DRL main realy that does this, but what I ended up doing was grounding it to the right fender area. Now I have head lights, controlled by the switch. The only thing that is different doing it this way is I get head lights when I only turn the switch to side marker lights ( 1st click ) wonder if there is a problem with this, cause I don't care? Do you know the wiring schematic well enough to know where the ground wire goes to get ground, it appears as though it goes inside the car?
January, 10, 2010 AT 9:38 PM
Are you talking about the DRL relay located behind the dash, above glove box? If so then the 2 wires that are white / black should go to the junction block #2 which is behind the instrument panel
January, 10, 2010 AT 10:11 PM
I grounded the drl relay up on the front right corner near radiator behind headlight. But I was wondering if that drl relay above the glovebox area might be defective, not allowing the ground to happen. I did go to the junk yard and tried one from another car, but that didn't fix it. I went to the Junk yard cause there expensive. So getting back to the white and black wire I was reffering to the one coming from drl relay front right corner of engine area
January, 10, 2010 AT 10:39 PM
Okay, the DRL relay ground at the right front of engine compartment should lead to the junction connection which is behind the left kick panel, it will be taped in.
January, 10, 2010 AT 10:56 PM
I will look in there and check. Do you know if the drl main (above glove box) allows that wire to make a ground? And or is the w/b wire coming from drl (engine) grounded all the time?
January, 10, 2010 AT 11:02 PM
The DRL main grounds at a separate connection behind the instrument panel junction block before continuing into the connection behind the left kick panel with the separate DRL relay. Then, both of the DRL relay grounds will travel on to the main dash harness which is located at the left end of the dash.
January, 10, 2010 AT 11:22 PM
Thanks for all your advice, sounds like you really know the car well!