DRL issues
Hey all, noob to the S2K world here and excited!
Mine's a track car with the headlights disconnected. As such, the wires are all jumbled up and zip tied in the engine bay. What I need is the ability to turn on the tail lights as rain lights, so a single click of the stalk for daytime running lights is what I'm gunning for. I hear the headlight relay click on the second setting, but nothing clicks on the first setting.
I've tracked the culprit to fuse 23 under the dash but once I replaced it, it pops every time I flip the DRL's on. I'm assuming this means I have a short somewhere unless someone else has a suggestion. I'm going to try and track all the black/red wires when I can but if I don't see an obvious short, any ideas of what I can look into next?
TIA!!!
Mine's a track car with the headlights disconnected. As such, the wires are all jumbled up and zip tied in the engine bay. What I need is the ability to turn on the tail lights as rain lights, so a single click of the stalk for daytime running lights is what I'm gunning for. I hear the headlight relay click on the second setting, but nothing clicks on the first setting.
I've tracked the culprit to fuse 23 under the dash but once I replaced it, it pops every time I flip the DRL's on. I'm assuming this means I have a short somewhere unless someone else has a suggestion. I'm going to try and track all the black/red wires when I can but if I don't see an obvious short, any ideas of what I can look into next?
TIA!!!
We need some help here starting with your model year and location. Strongly suspect this is not a USA car.
DRLs in the US cars (2006+) are the high beams at reduced power and not controlled by the light switch on the stalk on the steering column. No way to manually "flip them on" as they're controlled by the ECU and illuminate when the engine is running and maybe only when the car is in gear -- can't check this as my car is in the garage. Same for checking if they go out when the headlights or parking lights come on which I believe they do. Little blue light on the dashboard shows when they're on.
Fuse #23 controls the VSA motor also nothing to do with the DRLs.
DRLs don't illuminate the tail lights.
-- Chuck
DRLs in the US cars (2006+) are the high beams at reduced power and not controlled by the light switch on the stalk on the steering column. No way to manually "flip them on" as they're controlled by the ECU and illuminate when the engine is running and maybe only when the car is in gear -- can't check this as my car is in the garage. Same for checking if they go out when the headlights or parking lights come on which I believe they do. Little blue light on the dashboard shows when they're on.
Fuse #23 controls the VSA motor also nothing to do with the DRLs.
DRLs don't illuminate the tail lights.
-- Chuck
Thanks Chuck, it might be a semantics issue as well. Regardless, I solved it last night. Found the shorting wire (headlights are disconnected and wires are just all folded back and had rubbed together). Once I solved that, the fuse issue was fixed and the relay clicks on now with first turn of the stalk (that's what I was calling DRL, possibly the wrong name). Taillights still didn't come on, so checked in to that and lo and behold lol, they had single element bulbs in them.
Switched from a 7440 to a 7443 and Bob's your uncle... taillights now come on with the DRL/parking light mode (first click) on the stalk.
Thank you!
Switched from a 7440 to a 7443 and Bob's your uncle... taillights now come on with the DRL/parking light mode (first click) on the stalk.

Thank you!
Happy ending!
First click is almost universally called "parking lights" as that's the intention of that position which is not intended tor and is illegal for driving after dark when it's dark enough to need the headlights: Parking lights, taillights, instrument panel lights, side-marker lights, and rear license plate lights but no headlights.
DRLs are completely different. We know how they work on the S2000 (if available by market or model year). The LED fog lights in my Ford Expedition front bumper function as DRLs and are on all the time the car is in gear and the headlights are not on at which time they magically become fog lights and illuminate unless the high beams are on.
Rear fog lights are rare in USA-spec cars and, since I just mentioned my Expedition, are expensive to fit to US cars being imported to Europe as well as fitting yellow rear turn signals there.
You in Ontario? 
-- Chuck
First click is almost universally called "parking lights" as that's the intention of that position which is not intended tor and is illegal for driving after dark when it's dark enough to need the headlights: Parking lights, taillights, instrument panel lights, side-marker lights, and rear license plate lights but no headlights.
DRLs are completely different. We know how they work on the S2000 (if available by market or model year). The LED fog lights in my Ford Expedition front bumper function as DRLs and are on all the time the car is in gear and the headlights are not on at which time they magically become fog lights and illuminate unless the high beams are on.
Rear fog lights are rare in USA-spec cars and, since I just mentioned my Expedition, are expensive to fit to US cars being imported to Europe as well as fitting yellow rear turn signals there.
Bob's your uncle.

-- Chuck
Last edited by Chuck S; Dec 15, 2023 at 07:58 AM.
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