Need diagram of wiring and relays and sizes of relays that should go in it

It's inside the instrument panel fuse box , it's a PCB relay , printed circuit board relay .(non serviceable) . People have been known to by - pass these an mount a regular relay somewhere on the vehicle . Do you know what a wiring diagram is ? Here is a web site for free wiring diagrams . http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size. Then under system click on engine , then under subsystem click on fuel controls . Click the search button , then the first blue link. Scroll down to diagram # 7 fuel pump on right side of diagram .

What's clicking ? starter , relay ? Do you know what a wiring diagram is ? How about a DMM - digital multi-meter ,for testing electrical circuit's ? First off learning how the starter circuit in your vehicle works would be good ,that way your not guessing . Most of the time it take's just looking at a wiring diagram to see all the thing's involved . Plus watching a few electrical diagnostic video's on youtube ,if you know nothing about the subject . Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter your vehicle info. year ,make , model an engine size . Under system click on engine ,then under subsystem click on starting . Click the search button then the blue link . Do you have automatic or manual trans ?
Electric Testing Techniques You Need to Know
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I looked at info for a Silverado 1500. Use a test light to check for voltage at horn fuse in under hood fuse box. According to this diagram, the horn relay has to be energized. Have a helper hit the horn switch when you check voltage at horn fuse. If hot, have to check wiring circuit to horn. In the diagram, dark green wire is voltage and black wire is ground. You could actually use jumper wires from battery for voltage and ground to horn, for testing.

Relay maybe . free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine size . Under system click Body & accessories ,then under subsystem click on rear window defogger . Click the search button then the blue link .Looking at the diagram you will see three fuse's , a relay ,lighting control module , defroster switch . The switch is a input to the lighting control module , the lighting control module will supply a ground to the control side of the rear window defroster relay ,energizing the relay sending B+ power to the defroster grid.

Google your Make Model and engine size and the words "wiring diagram" At the top of the page go to images and click. You will find all wiring diagram you need

Mike

check the size of the bulbs you are using
anything over 55/65 watts will heat the wires.

The wiring diagram below shows what you need to end up wiring to make this work, so if you know how to read a wiring diagram and feel like "skipping ahead", just go click on the thumbnail for the wiring diagram and check it out in full size, full color glory. It's shown for a four headlight system - if you have a two headlight system on your car, pretend the two inner "high beam only" headlights aren't there and you'll be fine. The wire colors shown here represent a typical GM vehicle (the green and tan wires, along with some of the black wires) as well as the proper/correct/desired wire colors to use on any new wiring you do (the red and some of the black wires). Also, this is shown as a typical "Bosch style" automotive relay with the connections numbered as such. If your relay is not numbered like this, then just identify the wires by function and go from there.

Note that in the original version of this diagram, I had the labels for the right side headlights reversed - it has since been corrected thanks to a sharp-eyed reader who pointed out the mistake to me. The wiring diagram was always correct, but the headlight labels may have been a tad confusing to some. Apologies for the mistake.

Below is the diagram you needed. This was the biggest I was able to post on here due to a size limit (made it 2 parts). I do want to add one thing that may help you out. Honda's in that era had some problems with the PGM-FI relay. You may want to look into that if your wiring is good. I have seen the PGM-FI relay work fine in cooler weather but when it got hot outside the relay would not work. I hope this helps

Hello Edelways.
The horn fuse and the horn relay are in the left front under hood fuse/relay box.
This is a location diagram and the inside of the box. Sorry about the size of the diagrams. They don't allow us much space here. The fuse and relay should be marked in the fuse box lid.






Here is a wiring diagram just in case you need it.

If you need more assistance to locate, please ask me in comments.
Thank you for using FixYa.
KL

For fuse placement, the fuse box cover may have a diagram on it which indicates what fuse goes where, with initials for it's component(s); as well as the size required. If there is not a diagram, look in the owners manual (if available in car still). If not, go to an auto part store and purchase a book. I recommend a CHILTON as it is more detailed. (fairly cheap usually) parts stores vary. These books will also have a complete wiring diagram of the entire wiring system in the car. Start with the fuse box cover first. It should have the diagram. Also, if equipped, check under the hood, usually located near/behind the batter, for fuse/relay box. Check that all fuses and relays are securely installed there as well. DO NOT remove any fuses or relays while the car is on, ignition is in the ACC position, or while the battery is connected as you can cause shorts and blown fuses or relays while uninstalling or installing fuses and relays. This applies to the fuse box in the car as well. I hope that this information deems useful as well as solving your fuse issue.