Question about 2001 Chevrolet Tahoe
I have a 2001 tahoe LT and a while ago my fog lights worked, but now they don't turn on. I've changed both fog light bulbs and nothing. I noticed when I push the fog light switch the light indicator doesn't turn on. Another thing I noticed is my window switches and unlock button lights do not light up anymore. The last thing is I pulled the DRL bulbs and I swithced them out with new ones, but when I took out the old bulbs the socket looked burnt and the new bulbs didn't work. I have no idea what the problem can be and I've tried to look it up but nothing. The closest I can get to this problem was a post a guy put up saying that a green wire was pinched but I have no idea where and what the wire is. Any help will be greatly appreciated. I have put a new radio but they the fogs went out before I did anything to the truck. Thanks for reading
Voltage testing is the way to find problems like this . or voltage drop testing . Find a wiring diagram an trace out the circuit , Don't go by someone said something about a green wire . Watch these videos on youtube Electric Testing Techniques You Need to Know
The Trainer 32 How To Read An Automotive Block Wiring Diagram
If you want to fix electrical problems need to learn how don't guess or go by some guy talked about a pinched green wire .
How to read an electrical diagram Lesson 1 Then find a wiring diagram at http://www.bbbind.com/free_tsb.html Enter your vehicle info. year , make , model an engine size . under system click on lighting , then under subsystem headlamps . Hit the search button ,you'll see three links . Click on the second , this is the DLR diagram , you'll see a drl relay , a BCM - body control module , DRL fuse 10amp located in the under hood fuse box . IGN fuse 10amp supply's B+ voltage to the control side of the drl relay . With a DVOM - digital volt ohm meter test voltage supply . Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts If you want to fix electrical problems on your vehicle you need to learn how ! Or leave it to a professional like me ! I've been doing it for over thrity years . These resources i have listed , wish they would have been around back when i first started .
Posted on Mar 16, 2017
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Posted on Jan 02, 2017
SOURCE: REPLACE TAHOE DRL BULB SOCKET
You'll have to order the socket from the GM dealer. I've tried some common park/tail light sockets from Napa, etc. and none fit the lens housing. Part# for my 2004 GMC Sierra is 15306157. (Yours may be different, but probably not)
Remove the headlight lens (unclip & flip the two black steel rods towards you and pull them straight up & out). The lens should almost fall out if the bulb wires didn't hold it in!
There are only two wires, and since incandescent bulbs are not polarity-sensitive, they can go either way without mixing them up. Just cut & strip the old socket's wires, and strip & crimp the new socket on. ****-type crimp connectors were even included with the socket.
Posted on Apr 03, 2009
SOURCE: i got a 2004 chevy
If it is anything like my 04 GMC Sierra, there is a relay panel under the hood. In that underhood box where you found the fuses, there are also relays. They pop out (the diagram is on the lid of the box). After the GMC hit 200k, the relays started going out. The high beams are on a relay, the lowbeams are on a different one. You can pop one out and replace it with the horn or foglight relay if you want to check it out. I am betting that the DRL bulb just happened to go at the same time. Mine go out regularly..I would say around every 10-15k miles. I don't know if this helps, it is just something that I have run across with a similar vehicle.
Posted on Aug 16, 2011
Common for the wire harness on the switch to go bad. Inspect the wire harness where it clips on to the switch and look for any signs of damage.
The plastic heats up from the current running through the switch and causes it to melt and then you loose connection caused from melted plastic between the contacts from the harness to the switch.
There is a upgrade to the headlight harness which is larger then the ones that came with the Suburban to address this issues. You can get them at the dealer or NAPA i believe.
Good luck and keep us posted. Thank you for using fixya and stay safe.
Posted on Nov 03, 2011
Testimonial: "I replaced the turn signal switch which solved the problem. It was that. The headlight wires had melted at the connector. The pain is the new turn signal switch has a malfunctioning wiper component causing the wiper delay to turn on with out being on. Now I have to do it all over. "
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