C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

(96) Head lights don't turn on

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Old Jun 16, 2003 | 10:21 PM
  #1  
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Default (96) Head lights don't turn on

Stupid question, I turn on my headlights and they don't rotate and turn on. Any ideas?

It's a 96 manual trans Vette.

Eric
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Old Jun 17, 2003 | 04:30 AM
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Default Re: (96) Head lights don't turn on (silver & red CE)

Try switching out the headlight motor control relay. It's located in front of the driver side wheel well. It is a black box with the letters "GUIDE" on it. It is not cheep so I would try to borrow one. If you want to be brave you can take it apart. It's not very difficult, there is a central control switch on the computer board. It has gold tips on the 4 channel switch. If you take the clear plasic cover off of this relay (very carfully) then you can test each lead with some creative positioning of the probes of a volt/ohm meter. I did this and I simply had a bad wire (it was slightly discolored). I removed it and soldered a new one on. Works great now. By the way, the headlight control relay looks EXACTLY like the one from my 89 firebird. Maybe you can find a cheep alternative, but check with someone who knows before you buy one. Oh by the way, this may sound stupid, but check all your fuses before you do anything. :thumbs:
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Old Jun 17, 2003 | 11:13 PM
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Default Re: (96) Head lights don't turn on (speedracer1996)

Try switching out the headlight motor control relay. It's located in front of the driver side wheel well. It is a black box with the letters "GUIDE" on it....
Bing, bing, bing, we have a winner. You, Sir, are 100% correct, it's the "Headlamp Opening Door Actuator Control Module", also known as the black box with the letters "Guide" on it. Many thanks, I owe you a :cheers:

How much did you pay for one?

Eric
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Old Jun 18, 2003 | 03:19 AM
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Default Re: (96) Head lights don't turn on (silver & red CE)

About 150.00 for the firebird one. I don't think I want to know how much they will say when they hear "corvette". :eek:


[Modified by speedracer1996, 8:19 AM 6/18/2003]
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Old Jun 19, 2003 | 10:04 AM
  #5  
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Default Re: (96) Head lights don't turn on (speedracer1996)

About 150.00 for the firebird one. I don't think I want to know how much they will say when they hear "corvette". :eek:
List price: $147
Dal price: $94

I opened up the module, It's a $1.00 IC, a couple of $0.30 fets and a freaking relay. Throw in PCB costs and the housing, the raw materials can't be more than $7.00. What a scam, I swear GM hates us.

Eric
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Old Jun 19, 2003 | 12:07 PM
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Default Re: (96) Head lights don't turn on (silver & red CE)

Yea, there's a bunch of resistors and such up in there. If you have specs on what the bands mean, you can check each one (lotsa fun). I checked everything on the board, but I really think the weak link is that big relay in the middle. Oh, hey did you like the print on the outside "DO NOT REPAIR, REPLACE".....TRANSLATION (in a low subconcious voice) "send us your money, send us your money...." :crazy:


[Modified by speedracer1996, 5:09 PM 6/19/2003]
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Old Jun 19, 2003 | 07:27 PM
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Default Re: (96) Head lights don't turn on (speedracer1996)

On mine the relay failed and the fusiable links in series with the fets blew. The funny part is, the company I work for makes those fets. I told one of our fet guys his fets ran until the fuse blew, put a smile on his face.

Thanks again for the help,
Eric
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