# Daytime Running Lights (DRL)

**URL:** <https://forums.speedlife.net/t/daytime-running-lights-drl/136506>\
**Category:** Canada Nissan Automotive\
**Created:** [December 16, 2008, 10:23pm UTC](https://forums.speedlife.net/t/daytime-running-lights-drl/136506 "2008-12-16T22:23:25Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![nikoz](https://avatars.discourse-cdn.com/v4/letter/n/85e7bf/32.png) [@nikoz](https://forums.speedlife.net/u/nikoz)\
**Post date:** [December 16, 2008, 10:23pm UTC](https://forums.speedlife.net/t/daytime-running-lights-drl/136506/1 "2008-12-16T22:23:25Z")

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Hi - this is my 1st post here.

I have a '93 J30; the driver side running lights do not come on. I have electronically bench checked the DTRL relay in the fuse box & it works as per the schematic. The headlights work as req’d for lo-hi beam. However, a weird thing came to my attention in another US forum; removing the DTRL relay does not affect them working; the guy in the US, hoping to disable them, removed his DTRL relay with no change; I did the same, no change - ds still out, headlights work so wtf?  
The gray box on the fender well is the DRL actuator; if you remove one of the 2 plugs, one side of the headlights is totally deactivated.

I’ve been told, the headlight relay is on the FireWall, a black disc on the firewall near the brake “booster”. I didn’t spot it when I looked for it. Can anyone be more specific, like diam in inches, higher’ lower, right-left as you look at the F/W?

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**Author:** ![bing](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bing/32/7211_2.png) [@bing](https://forums.speedlife.net/u/bing)\
**Post date:** [December 17, 2008, 12:12pm UTC](https://forums.speedlife.net/t/daytime-running-lights-drl/136506/2 "2008-12-17T12:12:34Z")

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i cant help but i am going through a similar situation in an S14… massive pain in the ass.

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**Author:** ![nikoz](https://avatars.discourse-cdn.com/v4/letter/n/85e7bf/32.png) [@nikoz](https://forums.speedlife.net/u/nikoz)\
**Post date:** [December 17, 2008, 10:15pm UTC](https://forums.speedlife.net/t/daytime-running-lights-drl/136506/3 "2008-12-17T22:15:42Z")

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I’m calling the gray box on the fender-well the mystery box, because I think the prob resides there, but the schematic diagram in the working manual does not show its internal wiring, hence my label. I think some sh\*t like a desoldered connection happened in there, but the box appears disassemble-proof in order to get at the circuit board therein. I tried, but couldn’t figure out how to remove the smaller plug; the bigger one was easy. The enclosure is heavy-duty sheet metal & even if you figure out how to remove the smaller plug, you gotta then figure out how to get into the recessed enclosure. I gave up.

I forgot to mention, someone told me this is is DTRL “actuator”.

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**Author:** ![torontocustomlights](https://avatars.discourse-cdn.com/v4/letter/t/f07891/32.png) [@torontocustomlights](https://forums.speedlife.net/u/torontocustomlights)\
**Post date:** [November 25, 2009, 12:07pm UTC](https://forums.speedlife.net/t/daytime-running-lights-drl/136506/4 "2009-11-25T12:07:59Z")

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check if you have a fuse for the DRL usually Nissans and Infinitis have bith: a relay and a fuse to control the DRL  
Let me know how it goes