"Lights"" Warning light suddenly on

[Destrto]

Another question for you guys, because I can't find anywhere with a straight answer.

Last night, coming home, I noticed that my "Lights" warning light on the dash came on. At first I thought it was just because my headlights were on, it's always done that in the past. However, when I turned them off, the light stayed on. I have since checked every exterior light on the car and they are all working properly. No corrosion on anything either.

I'm now at a loss at what to check for next. The alternator is new. The battery is new. And this has never done this before last night.


P.S. - I've read that if the light comes on when braking, that it could mean there is a problem with one of the bulbs or the voltage. Something along the lines of how the ecu wants a certain voltage value read from all the bulbs, and when it isn't seeing it within a certain range, that it will come on when you hit the brake pedal.. My only argument against that, is that this car has always done that?

[fastVG30DETT]

When does the light come on? It's not unheard of for the sensor to go bad; assuming all bulbs / connections are ok (including the 3rd brake light).

[Destrto]

When does the light come on? It's not unheard of for the sensor to go bad; assuming all bulbs / connections are ok (including the 3rd brake light).

The light comes on as soon as the car is started. And it does not go off again until the car is turned off.

[everpresentnoob]

Dosent that light also indicate low brake fluid?

In my car the previous abuser replaced the brake bulbs with LED. while they look good, they do not have the correct resistance so the light illuminates everytime I hit the brakes as the sensor is thinking there is a bulb out.

[Destrto]

Dosent that light also indicate low brake fluid?

In my car the previous abuser replaced the brake bulbs with LED. while they look good, they do not have the correct resistance so the light illuminates everytime I hit the brakes as the sensor is thinking there is a bulb out.

I'll check the brake fluid just for something to rule out. Last time I did check fluids, brake fluid was topped off. And all of my exterior lights are regular bulbs. Nothing is LED.

It's always came on when I hit the brake, and I just assumed that was normal, to indicate that the exterior lights were on somewhere. As it does the same thing when the Headlights are on. But, if it's been telling me that it's registering a bulb out, I don't know which bulb it would be unless it's the third brake light. Since that one hasn't had a bulb in it since I purchased the car.

[everpresentnoob]

well if your third brake light does not have a bulb I would start there. that light is partly driven by the sensor that is in line with the power for the brake lights. if it detects an abnormal resistance, ie bulb is out it will illumiinate.

you say yours also comes on if your headlights come on? Odd. Mine dosent. Mine only comes on with the brakes. and I am not running the stock bulbs in my headlights. I put actual HID projectors in there and am running D2S HIDs.

[Destrto]

well if your third brake light does not have a bulb I would start there. that light is partly driven by the sensor that is in line with the power for the brake lights. if it detects an abnormal resistance, ie bulb is out it will illumiinate.

you say yours also comes on if your headlights come on? Odd. Mine dosent. Mine only comes on with the brakes. and I am not running the stock bulbs in my headlights. I put actual HID projectors in there and am running D2S HIDs.

Going to be taking a look at that as well.

I think I'm getting the issue narrowed down, as I noticed today that the left turn signal was blinking quicker than normal. Usually indicating a bad bulb. However, it showed up again after replacing the front turn signal bulb with a new one.

[Destrto]

you say yours also comes on if your headlights come on? Odd. Mine dosent. Mine only comes on with the brakes. and I am not running the stock bulbs in my headlights. I put actual HID projectors in there and am running D2S HIDs.

I do have LED headlights from Auxbeam for both low and high beams, but they've been in for awhile and that light never gave me this kind of trouble.

One thing I wanted to add, or ask rather. For any of those reading that have LED bulbs in place for exterior lights and such, was there anything you did to fix the turns from blinking so fast? Or is that just the new norm when switching to all LED's? Is there a way to replace a fuse with a different value that would change the blink rate?

[fastVG30DETT]

you say yours also comes on if your headlights come on? Odd. Mine dosent. Mine only comes on with the brakes. and I am not running the stock bulbs in my headlights. I put actual HID projectors in there and am running D2S HIDs.

I do have LED headlights from Auxbeam for both low and high beams, but they've been in for awhile and that light never gave me this kind of trouble.

One thing I wanted to add, or ask rather. For any of those reading that have LED bulbs in place for exterior lights and such, was there anything you did to fix the turns from blinking so fast? Or is that just the new norm when switching to all LED's? Is there a way to replace a fuse with a different value that would change the blink rate?

The warning light comes on when the headlights are on or when the running lights are on? The running lights turn the side markers and tail lights on. Might help narrow down your issue.

For the leds, you'll have to modify your blinker relay or wire a resistor inline with each bulb.

[Destrto]

The warning light comes on when regardless of the headlights being on or the running lights on. It stays on all the time. Soon as I turn the car on it comes on.

Do you know how exactly I would need to modify the relay? Is there a write-up I'm not finding?

[fastVG30DETT]

You could try this: http://twinturbo.net/nissan/300zx/forum ... ation.html

On my bikes ive used resistor kits from eBay with success.

Sounds like it may be time to rip that warning light outta the dash. Lol. kidding. Hope you figure it out.

[Destrto]

I've gone through and replaced every bulb I can find on the car, and that light still remains. So, I'm a bit lost as to what to look at next.

For those that have done the LED replacement for exterior bulbs, did you receive this warning light on the dash when doing that?

[javadave]

you say yours also comes on if your headlights come on? Odd. Mine dosent. Mine only comes on with the brakes. and I am not running the stock bulbs in my headlights. I put actual HID projectors in there and am running D2S HIDs.

I do have LED headlights from Auxbeam for both low and high beams, but they've been in for awhile and that light never gave me this kind of trouble.

One thing I wanted to add, or ask rather. For any of those reading that have LED bulbs in place for exterior lights and such, was there anything you did to fix the turns from blinking so fast? Or is that just the new norm when switching to all LED's? Is there a way to replace a fuse with a different value that would change the blink rate?

I installed this relay from oreillys auto parts rather than run resistors on all the LEDs, much quicker and cleaner
LED Flasher Relay for 300ZX
Also my "lights" warning indicator came on whenever I pressed the brake pedal when I first bought her. All the lights worked, including the 3rd brake lights. The bulbs sold today have a different power rating than those sold 27 years ago, so I just pulled the bulb in the cluster when I replaced all the cluster bulbs with LEDs as well. Only downside is you have to check that all your lights are operational every so often.

[Destrto]

I do have LED headlights from Auxbeam for both low and high beams, but they've been in for awhile and that light never gave me this kind of trouble.

One thing I wanted to add, or ask rather. For any of those reading that have LED bulbs in place for exterior lights and such, was there anything you did to fix the turns from blinking so fast? Or is that just the new norm when switching to all LED's? Is there a way to replace a fuse with a different value that would change the blink rate?

I installed this relay from oreillys auto parts rather than run resistors on all the LEDs, much quicker and cleaner
LED Flasher Relay for 300ZX
Also my "lights" warning indicator came on whenever I pressed the brake pedal when I first bought her. All the lights worked, including the 3rd brake lights. The bulbs sold today have a different power rating than those sold 27 years ago, so I just pulled the bulb in the cluster when I replaced all the cluster bulbs with LEDs as well. Only downside is you have to check that all your lights are operational every so often.

I actually found the guy on Facebook that sells the LED kits, and he sells the relay separately. So I picked it up from him, because support fellow Z sellers, right? It works great, most likely the same as the one you mentioned. And my blinkers all function normally again.

I do however still have the Lights warning light on at the dash. So. I'm running through and checking all the lights on the outside of the car, and the inside. So far, I cannot find any bulbs that are not working.

Any one have any new insight into this? If it's not supposed to be on all the time, I'd like to fix it.

[everpresentnoob]

as stated, just pull the bulb out of the cluster.

[Destrto]

as stated, just pull the bulb out of the cluster.

So you didn't actually fix the issue. You just removed the bulb alerting you there was one.