still having headlight problems
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
still having headlight problems
ok i have discovered, it has nothing to do with my h4 upgrade, with the stock harness plugged in, i still have the problems. here they are:
my foglights only come on when high beams are on.
when my lowbeams are on, my high beam indicator is on, but when i turn on my highbeams, the indicator goes off. oh, if i have just my running lights on, i can turn on my foghlights as well.
can someone please help me, i got a wiring diagram, perhaps i can get someone to tell me what wires speciifcally to look at?
my foglights only come on when high beams are on.
when my lowbeams are on, my high beam indicator is on, but when i turn on my highbeams, the indicator goes off. oh, if i have just my running lights on, i can turn on my foghlights as well.
can someone please help me, i got a wiring diagram, perhaps i can get someone to tell me what wires speciifcally to look at?
Thread Starter
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
heres a pic, what could be the problem? i cant imagine how the high beam indicator is only coming on with the lowbeams, unless it was only touching the tan wire. it was all fine until i installed this stupid h4 setup and cut away a few wires
Did you buy a multimeter yet? You can get a cheap analog one for $5. Why the hell did you cut your wiring?
You have your low-beam wiring driving your high beams and your high-beam wiring driving your low beams.
Are you using the Painless harness? That's for H4 to H4, you need to swap the high and low beam inputs on that.
You have your low-beam wiring driving your high beams and your high-beam wiring driving your low beams.
Are you using the Painless harness? That's for H4 to H4, you need to swap the high and low beam inputs on that.
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
ok i figured it out, i bypassed the relays and everything works fine. so now i guess it lays in the relays and they are mixed up. are all 4 prong relays gonna be the same relay as in the internals? unfortunately it has no layout on it.
I figured so, but I thought you were looking at your stock wiring problem?
Are you using the Painless harness? If so, it's H4 to H4, so you need to shift the terminals in your stock plug so that it's like you are plugging into an H4 terminal with your stock harness. I doubt you built it yourself, if it's not Painless where'd you get it?
Get your stock harness working first, then get the relayed harness working.
Are you using the Painless harness? If so, it's H4 to H4, so you need to shift the terminals in your stock plug so that it's like you are plugging into an H4 terminal with your stock harness. I doubt you built it yourself, if it's not Painless where'd you get it?
Get your stock harness working first, then get the relayed harness working.
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Thread Starter
Supreme Member
iTrader: (2)
Joined: Sep 2003
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
i found out my stock harness is working just fine, i bypassed the relays and everything works as intended, its not painless, its apc h4 upgrade harness, but i had to do the wire change anyways. so im guessing the relays are messed up somehow?
So, what exactly is the problem now? High beam going on in the low beam setting and low beams going on in the high beam setting? If so, it's still the wires going to the wrong connectors. I can't comment on your relays, I don't know what is hooked up. Which harness is this, the 4 bulb harness or the 2 bulb? How many relays does this have? What relay is the high beam wire connected to? In turn, which wire is the trigger for the relay of the high beam wire?
Just invest in a multimeter. Probe a few lines and you'll know exactly what is getting voltage and what is not.
Post some detailed pictures if you can. This is pretty much getting pointless if you can't probe the lines yourself or if you don't know how a relay works.
Just invest in a multimeter. Probe a few lines and you'll know exactly what is getting voltage and what is not.
Post some detailed pictures if you can. This is pretty much getting pointless if you can't probe the lines yourself or if you don't know how a relay works.
Last edited by 91Z28-350; Mar 20, 2005 at 10:04 PM.
Thread Starter
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
its the relays i know for sure, its the indicator thats backwards, with my lows on my indicator says its high beams are on which they arent. and when i turn my highs on, the indicator goes off.
And how do you know this to be sure?
I think it's still what I've been saying. You're feeding your high beams with your low beam feed and your low beams with your high beam feed. Another derivative of that is that you are triggering the high beam relay with your low beams and your low beam relay with your high beams.
Get a multimeter. Probe. It's super simple. Without any detailed information, such as pictures of the connectors with all the wires visible, and the relays, and information on your harness all this posting is pointless. It would be easier to probe and say feeding line A with 12V triggers 12V on this output wire(s).
Relays can't cross wires. It makes a physical connection with a trigger to either select (SPDT) or enable output selection (SPST), and power inputs. Either the relay makes the connection or it does not. Since you are getting output voltage somewhere, the relay is making a connection. The relays are not the problem.
I think it's still what I've been saying. You're feeding your high beams with your low beam feed and your low beams with your high beam feed. Another derivative of that is that you are triggering the high beam relay with your low beams and your low beam relay with your high beams.
Get a multimeter. Probe. It's super simple. Without any detailed information, such as pictures of the connectors with all the wires visible, and the relays, and information on your harness all this posting is pointless. It would be easier to probe and say feeding line A with 12V triggers 12V on this output wire(s).
Relays can't cross wires. It makes a physical connection with a trigger to either select (SPDT) or enable output selection (SPST), and power inputs. Either the relay makes the connection or it does not. Since you are getting output voltage somewhere, the relay is making a connection. The relays are not the problem.
Thread Starter
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
the relay is the problem, i need to know which wires go to which prongs on the relay. i do not have a diagram and do not know if all relays are the same. i bypassed the relay and wired all the wires directly and everything works as intended. but iwant the relay so i can have the power straight from the battery and better light!
You aren't understanding a single word I am saying are you?
You don't know how relays work, I've already explained them to you. I bet it's just a standard SPST relay. Get a damned multimeter already. The relays are the problem? You don't know how they work and you've determined that they are wrong? ROFL!
RELAYS DO NOT CROSS WIRES. The signal INTO the relay is wrong. Either that or you hacked up the wrong wires to connect to your high beams.
They will not have a custom relay. I'd bet dollars to donuts that they are using a standard relay.
You still haven't given a description of your harness as I have asked multiple times...is it the 2 bulb harness or the 4 bulb harness? How many relays are there?
But since you're so sure of the problem, why don't you just call or e-mail APC and tell them they messed up the harness?
Anyway, since you aren't answering my questions, I'm done here.
Edit: http://www.bcae1.com/relays.htm all you ever wanted to know about a basic relay.
You don't know how relays work, I've already explained them to you. I bet it's just a standard SPST relay. Get a damned multimeter already. The relays are the problem? You don't know how they work and you've determined that they are wrong? ROFL!
RELAYS DO NOT CROSS WIRES. The signal INTO the relay is wrong. Either that or you hacked up the wrong wires to connect to your high beams.
They will not have a custom relay. I'd bet dollars to donuts that they are using a standard relay.
You still haven't given a description of your harness as I have asked multiple times...is it the 2 bulb harness or the 4 bulb harness? How many relays are there?
But since you're so sure of the problem, why don't you just call or e-mail APC and tell them they messed up the harness?
Anyway, since you aren't answering my questions, I'm done here.
Edit: http://www.bcae1.com/relays.htm all you ever wanted to know about a basic relay.
Last edited by 91Z28-350; Mar 21, 2005 at 11:45 AM.
Thread Starter
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
i have a multimeter. im saying the problem is in the relay because from the factory, the wires leading to the relay is different then what my setup requires. so i need to know which wires run to what 'terminals' on the relay. their is 2 relays, and its a 4headlight system. dont get mad man, im not calling the relay faulty, just the wires connected to the relay are mixed up and since they dont have a diagram printed on them, i dont know the correct way to wire them through the relay.
Post a picture of the top and bottom of the relay. If you can't post the model # and manufacturer of the relay.
The bottom pins should be numbered, such as 30, 85, 86, 87, 87a. There are normally 5 spades on the bottom side of the relay.
https://www.thirdgen.org/newdesign/t...tupgrade.shtml has a really simple diagram of how it should be hooked up, but this is for your standard relay (which is what APC should be using). Personally, I would use 3 relays instead of 2. Use 2 for the high beam setting (one for the H1 and one for the H4 high beam) and 1 for the H4 low beam setting. That would allow you to use really high wattage high beams, if you want.
The bottom pins should be numbered, such as 30, 85, 86, 87, 87a. There are normally 5 spades on the bottom side of the relay.
https://www.thirdgen.org/newdesign/t...tupgrade.shtml has a really simple diagram of how it should be hooked up, but this is for your standard relay (which is what APC should be using). Personally, I would use 3 relays instead of 2. Use 2 for the high beam setting (one for the H1 and one for the H4 high beam) and 1 for the H4 low beam setting. That would allow you to use really high wattage high beams, if you want.
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
shiey joung
804-1A-C1
COIL-12VDC
30A/12VDC
thats all theirs printed on the side. theirs 4 pins on the bottom.
theirs two relays total.
804-1A-C1
COIL-12VDC
30A/12VDC
thats all theirs printed on the side. theirs 4 pins on the bottom.
theirs two relays total.
That's an SPST relay.
http://www.relayasia.com/pdf-files/s...mative/804.pdf
You're going to need to probe.
Look at the bottom of the pdf, there's a small diagram.
The ends with the coils (left side). Hook one terminal on the left side up to battery ground, the terminal on the left side up to your incoming headlight voltage (high or low beam depending on which relay). Hook one of the terminals on the right side up the corresponding H4 prong (high or low beam depending on which relay). Hook the remaining terminal on the right side up to battery positive.
I bet this is how APC has it wired too. You need to probe the relay to be absolutely certain where the coils are or you can short out your system. Hopefuly you have a fuse in there.
Either the relay triggers or it doesn't. It sounds like it's triggering so the relay is connected properly.
As I said before, it's not the wiring for the relay, but the splices you have going into and out of the relay that is the problem. The signals are switched somewhere...where the high beam signal from your stock wiring is triggering the low beam relay and the low beam signal from your stock wiring is triggering the high beam relay. Either that or on the terminals connecting to the H4 you have things backwards.
http://www.relayasia.com/pdf-files/s...mative/804.pdf
You're going to need to probe.
Look at the bottom of the pdf, there's a small diagram.
The ends with the coils (left side). Hook one terminal on the left side up to battery ground, the terminal on the left side up to your incoming headlight voltage (high or low beam depending on which relay). Hook one of the terminals on the right side up the corresponding H4 prong (high or low beam depending on which relay). Hook the remaining terminal on the right side up to battery positive.
I bet this is how APC has it wired too. You need to probe the relay to be absolutely certain where the coils are or you can short out your system. Hopefuly you have a fuse in there.
Either the relay triggers or it doesn't. It sounds like it's triggering so the relay is connected properly.
As I said before, it's not the wiring for the relay, but the splices you have going into and out of the relay that is the problem. The signals are switched somewhere...where the high beam signal from your stock wiring is triggering the low beam relay and the low beam signal from your stock wiring is triggering the high beam relay. Either that or on the terminals connecting to the H4 you have things backwards.
You could, depending on whether or not the current relay is using a relay socket or not. If it is, then you need to cut the wires and put terminals on them or use a relay socket for the Bosch type relays.
But, I honestly don't think it would matter. If the relays are switching, then they are switching. You need to find your trigger wire to make sure it is indeed what you think they are. Then find corresponding output wire to the headlamps and make sure it is what you think it is.
If there are any splices, better make that known. The wires are normally color coordinated from a commercially available harness. They don't have to be tan or green, but they are/should be consistent within each other. You may have to feel around the harness to see if you can find any splice points. I highly doubt there are crossed splices, otherwise all the lights will light up no matter what you do.
Take pics of the connectors and post them up. Then take pics of your stock harness connectors and how you connect them to the APC harness and post those up. Then post the connections to the relays.
Take a close look at https://www.thirdgen.org/newdesign/t...tupgrade.shtml . That is how the wiring "should" be, in general. The relay wiring, I've already explained to you for the 804-1A-C1 relay. The rest is up to you to give more specific details and questions or follow the instructions in the link and piece it all together yourself.
But, I honestly don't think it would matter. If the relays are switching, then they are switching. You need to find your trigger wire to make sure it is indeed what you think they are. Then find corresponding output wire to the headlamps and make sure it is what you think it is.
If there are any splices, better make that known. The wires are normally color coordinated from a commercially available harness. They don't have to be tan or green, but they are/should be consistent within each other. You may have to feel around the harness to see if you can find any splice points. I highly doubt there are crossed splices, otherwise all the lights will light up no matter what you do.
Take pics of the connectors and post them up. Then take pics of your stock harness connectors and how you connect them to the APC harness and post those up. Then post the connections to the relays.
Take a close look at https://www.thirdgen.org/newdesign/t...tupgrade.shtml . That is how the wiring "should" be, in general. The relay wiring, I've already explained to you for the 804-1A-C1 relay. The rest is up to you to give more specific details and questions or follow the instructions in the link and piece it all together yourself.
Thread Starter
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
i dont have a camera so pictures are out of the question, i looked at that pdf file, and at the diagram at the bottom, but i dont know which way to look at my relay in hand and know that im connecting the right wires to the right prongs on the relay
Use your multimeter and measure for low resistance or check for continuity. When you find it, that is the pair that should be used for ground and the trigger wire.
The relays in your harness are already connected that way, since they are triggering. You shouldn't need to mess with it.
Can you please just do what I say and check the trigger and output wires? The relays were triggering before, so it's set up properly.
The relays in your harness are already connected that way, since they are triggering. You shouldn't need to mess with it.
Can you please just do what I say and check the trigger and output wires? The relays were triggering before, so it's set up properly.
Well, since you wouldn't, I contacted APC. The harness is made to control 4 H4 bulbs. Did you change the pins in the socket to control your H1 bulb? H1 only has 2 male spades, not 3. If not, that explains why you have high beams on with the low beam setting.
https://www.thirdgen.org/newdesign/t...es/connect.gif if you didn't read the TGO article I posted a link for.
Anyway, feel free to keep chasing the relays...I'm definitely done with this.
https://www.thirdgen.org/newdesign/t...es/connect.gif if you didn't read the TGO article I posted a link for.
Anyway, feel free to keep chasing the relays...I'm definitely done with this.
Thread Starter
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
i dont have h1 bulbs, i have h4. my highbeams are still the stock beams. and their is only two wires running to the high beam socket. high beams do not come on with lowbeams. only the blue indicator in the dashboard comes on.
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