trhs75

My daughter's headlights on her 99 RX300 went out yesterday (in college, out of state, of course!); the side marker lights work. Since both headlights went out at the same time, I suspect a fuse. The fusebox diagrams and photos I have found on this forum show later models with HID headlights, apparently. The dealer told me the 99 shouldn't have a relay because the lights aren't HID. He thinks the fuse would be 20A (#90982-09011, according to him). I sent along spare 30, 40, and 50A fuses when she went off to school along with the smaller blade-type fuses, but I don't know what she's going to need. I know the bulb part numbers in case she needs new bulbs, but does anyone have any ideas? I don't know if the high beams are working or not, but I'm guessing not. Thanks for any help!

code58

Need a little more SPECIFIC info. You don't specifically say whether it was the low beams or high beams that went out. From the statement ^^^^^ you made, I assume it's the low beams that have both gone out. Did they both go out at the same time? Yea, I know, college student, silly question, right??? MOST cars have the low beams on separate fuses while the high beams are on 1 fuse. We'll see if we can help with a little additional info, OK?

trhs75

Thanks for the reply! I haven't talked to her again yet, but I know the low beams are both out. She found out because she was stopped by the police -- driving in town, I guess she didn't notice they weren't working. I'm guessing they both quit at the same time. I'll have her try the high beams and see if I can find out a little more info. I thought someone with a '99 might know what fuses are involved, just in case that's the problem.

code58

It's not impossible, but quite unlikely that BOTH low beam circuits shorted at the same tome, since they are separate circuits AND fuses. I would expect that of the high beams, but not the low beams. A greater likelyhood would be the MFS (multi function switch) on the steering column (what you use to turn the lights on). Sorry, the '99RX is my DIL's, I'm only it's mechanic. If someone else doesn't come along soon, I'll try looking in
the shop manual to see what I can come up with.

trhs75

I'm going to send her a couple of 9006 bulbs, and I'll have her check the fuses when the weather warms up a little. I appreciate the help!

sktn77a

iTrader: (2)

Both of my low beams went out within a couple of days of each other. I too thought it might be a fuse but the fuses were fine. The bulbs are a little difficult to get at and remove from their holders so she may not be able to change them herself.

trhs75

I had replaced both low beam bulbs together a couple of years ago, so I guess it stands to reason they could fail together. She was able to change the "D" indicator bulb in the dash without a problem, but that was a little cleaner job, and in warmer weather!

trhs75

Daughter changed out both low-beam bulbs today and that solved the problem. Thanks for the assistance -- she feels pretty proud she was able to do it herself!

thomas1

Wow smart young lady....you should be proud...

trhs75

I am, although she probably got her brains from her mom! Thanks!