Dash lights are not on when daytime running lights are on.
I have a 2003 Toyota Highlander Limited. Until recently, my dash lights would be on whenever my daytime running lights (DRL) were on. Now, the only time the dash lights are on is when the parking or head lights are on. The dash lights DO NOT come on when only the DRL are on. Does anyone have any idea what would cause this? I have checked all the fuses and they all appear to be okay.
I did not think that dash lights would be on with DRL, what is the point? Check your instrument light dimmer switch to see if the dash lights were accidentally turned down.
No, if the dimmer was turned down, the dash lights wouldn't work when the headlights are on. As I said, the dash lights DO work when the parking and head lights are on. They used to work when the DRL were on. The dash lights are on in my Camry and my Yaris when only the DRL are on. The fact that they used to work on my Highlander and now they don't, tells me that there's something wrong somewhere.
There may be a relay or electronic device somewhere that controls the dash lights. Good luck but if it were me I would not worry about it. I prefer the dash lights to be off during the day.
I agree it's odd but, ok, it could be the DLR module. That'd be where I'd start looking since the fuses are ok. HTH. -Jim
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