daylight running light problem

zx9rmal · 01-05-2023, 10:04 AM

When I was stopped at a light recently, I noticed in the reflection off the rear of the car in front of me that my driver side DRL was out. I brought it to the dealer and they replaced it. However, they should have diagnosed the problem because it is still out when driving. What is interesting is that when I turn the lights from auto to manual, the DRL is on, but it's much brighter than the passenger side.
So it seems to me that the problem has something to do with whatever actually controls the operation of the light. Is there a module that controls how the DRL's operate?
Can anyone shed light on this.? Thanks.

arpad_m · 01-05-2023, 02:01 PM

The DRL does have a module (see part #4 below), but it comes attached to the light body (part #1), one would think the dealership replaced them as a single assembly. The online parts catalog does say that programming is required for the new module, maybe that's the missing piece?

01-05-2023, 02:01 PM	#2
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,737 View My Garage	The DRL does have a module (see part #4 below), but it comes attached to the light body (part #1), one would think the dealership replaced them as a single assembly. The online parts catalog does say that programming is required for the new module, maybe that's the missing piece? Attached Images __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

01-05-2023, 10:04 AM	#1
zx9rmal Drives: '20 ZL1 M6 Join Date: Apr 2017 Location: FT. Lauderdale, FL Posts: 718	daylight running light problem When I was stopped at a light recently, I noticed in the reflection off the rear of the car in front of me that my driver side DRL was out. I brought it to the dealer and they replaced it. However, they should have diagnosed the problem because it is still out when driving. What is interesting is that when I turn the lights from auto to manual, the DRL is on, but it's much brighter than the passenger side. So it seems to me that the problem has something to do with whatever actually controls the operation of the light. Is there a module that controls how the DRL's operate? Can anyone shed light on this.? Thanks. __________________ Mal Ft. Lauderdale, FL '20 Camaro ZL1 M6 '22 Kawasaki ZX-14R

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