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- GM / Chevrolet Tech's? DRL Problem That Is Likely Something Very Simple To Remedy ...

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I have a 2003 Monte Carlo SS, ... 3.8L w/ 55,000 miles on it, & has never

seen a single snowflake, nor the accompanying "salt 'n cinders" here in

Central New York.

The Problem:

The PASS side DRL (high beam's on this car) runs dimmer than the

DRIV side. When I use high beams, they work flawlessly, ... &, yes,

they are identical bulbs - Philips Diamond Vision 5000K 9005/HB3's.

During the day, I chocked tires, & applied the parking brake, then put

it in gear to activate the DRL's.

I took the DRIV side bulb out, & used a DMM to measure voltage right

at the fixture, & it read just shy of 6v ... appears they run at half-brightness

as DRL's, ... then I unplugged the PASS side bulb, ... The DMM read just

shy of 3v. I used another DMM to confirm the voltages.

What a head-scratcher at that point.

I asked some folks in a Monte Carlo Forum I am part of, & someone told

me to check a particular relay under the hood.

I found the relay with ease in the upper fuse box, & there happened to be

an identical relay right above it - that one runs the fuel pump - so I swapped

them out to see if the lights would work, & if the relay was bad, then the car

would also not start because it would not activate the electronic fuel pump.

I hit the key, & the car started. Ugh.

... & the DRL's were still messed up. I grabbed the relay that was running

the fuel pump - the one the originally ran the DRL's - & I pulled it out, & the

car quit running almost immediately. Relay problem? No, Sir.

Anyone have any ideas? I am mechanically inclined, especially when I get

Pop involved.

Thanks for anything, folks.


Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

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I skimmed through identifix to see if i can find anything about the one light being dim. Came up with nothing.

The most i was able to find was about was the blower motor, DRL and HVAC not working, Most fixes was Ignition switch, then body control module, then headlight switch.

Last thing i found was a few fixes for highbeams not working, and the fix was cleaning/repairing the grounds for headlights.


If it's worth building, it's worth over building.

image_zps27zlqdnx.jpg

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I skimmed through identifix to see if i can find anything about the one light being dim. Came up with nothing.

The most i was able to find was about was the blower motor, DRL and HVAC not working, Most fixes was Ignition switch, then body control module, then headlight switch.

Last thing i found was a few fixes for highbeams not working, and the fix was cleaning/repairing the grounds for headlights.

Thank you for shooting some things my way ... I have never heard

of "Identifix" before, ... definitely will check that out for a plethora of things.

As far as the other stuff you brought up, everything else on the car works

perfectly, & like I said, the bad winter stuff has never had a chance to

corrode stuff, etc., ... although I am absolutely cognizant that stuff can still

happen, & anyone of those issues you listed could be an issue ... & I am

going to start checking through as many of them as I physically can, ... I

just know when I take it, IF I have to, to the Chevy Shop, it is clearly elec-

trical, & it is right around $96/hour - both diagnostics, & fixing. What I hate

is that they really will not tell you (me) what is wrong (& I pay appropriately),

& then I take the car & get the parts & fix it myself ... It is always like a big

fucking secret, & if your are not going to let them fix it, then you are given

info that just has you chasing your tail forever.

Ugh.

I do not know.

But, again, ... I greatly appreciate you replying, Sir.

... & let us see if anyone else does & has a same or different idea, ... ALL are welcome, folks!!


Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

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bump


Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

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I had this issue with my truck, and while i know it;s not the same vehicle, it it was the same problem. (but on drivers side). My issue turned out to be a ground issue.

Good luck, i know these type of issues get to be annoying.


truthsayer

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I had this issue with my truck, and while i know it;s not the same vehicle, it it was the same problem. (but on drivers side). My issue turned out to be a ground issue.

Good luck, i know these type of issues get to be annoying.

Double Double, Ugh Ugh!


Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

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