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Old 02-17-2017, 12:27 AM   #1 (permalink)
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Default Installing Fog Lights on a 2007 Suzuki Forenza

Hey guys,

I found a decent price on some after-market fog lights for my 2007 Forenza (which didn't come with any), and I was wondering what the process of installing them involves. I've heard that some Suzuki's come with the wiring ready to go, but I didn't know if that applies to all models. Any help would be greatly appreciated! (include pictures if you have them!)

Respectfully,
-BM
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Old 02-23-2017, 07:35 PM   #2 (permalink)
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Just an update: I got the fog lights mounted, and swapped out my old headlight switch with one that has a fog light switch built into it. The old switch had 3 wires (green, black, white) and the new one has 5 (green, black, white, yellow, yellow w/ red stripe). I was surprised to see a corresponding purple and light brown (P and Lb) wire on the female plug. When I checked the continuity, I found that the fog light switch controlled the 2 new wires (Y and Yw/R) on the male plug (no surprise there), but the P and Lb wires on the female plug were both already grounded. I don't know if this means that they're spliced together somewhere or what. A 15amp fuse under the hood needs to be inserted in the "fog light" slot. I tried finding a spare plug on the same branch as the headlights, but there wasn't one there, and I can't find a spare wire or anything that doesn't have a home. Now I'm stuck. I have the wiring diagram, but I need to do more research to figure out where everything is and track down the wire I'm looking for. Any help would be greatly appreciated!

Respectfully,
-BM
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Old 02-24-2017, 12:49 PM   #3 (permalink)
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Any chance of posting up the wiring diagram.
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Old 02-24-2017, 10:02 PM   #4 (permalink)
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I've attached the Fog Light Wiring Diagram (9A-81) and supporting documents to this post.

-BM
Attached Thumbnails
Installing Fog Lights on a 2007 Suzuki Forenza-suzuki-forenza-wiring-diagram-9a-81.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-suzuki-forenza-wiring-diagram-9a-2.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-suzuki-forenza-wiring-diagram-9a-3.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-suzuki-forenza-wiring-diagram-9a-82.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-suzuki-forenza-wiring-diagram-9a-83.jpg  

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Old 02-25-2017, 12:57 AM   #5 (permalink)
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Default Update:

I've never read a wiring diagram before, but after researching it a bit, I've come up with the annotated diagram which is attached to this post. Assuming the ignition is on and all the switches are off, I've marked constant hot (direct connection to the battery through 15amp fuse) in red, constant ground in green, and ignition-controlled hot in orange. I've marked the pin locations with circles which match the color of the wires coming out of them. When everything is said and done, I believe that I need to locate pins 3 and 8 on C104, which should be at the end of the branch with the headlight wires on it. I now know that the 15amp fuse which was missing under the hood is the one which connects the battery to the front fog lamp relay, and I'm fairly certain that C104 is going to be connected directly to the fuse box. I'll see if there's any wires coming out off of pins 3 and 8, and if not, I'll run hots from there down to my lights, and then grounds to G102 and G101 respectively. I'll take a look at it, get back to you on what I find, and post pics of anything important. Hopefully we've sorted this out for the next person.

Respectfully,
-BM
Attached Thumbnails
Installing Fog Lights on a 2007 Suzuki Forenza-annotated-fog-light-wiring-diagram.jpg  

Last edited by BackyardMech; 02-25-2017 at 02:11 AM.
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Old 02-25-2017, 02:10 AM   #6 (permalink)
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Default Update:

The C104 connector was right where I thought it would be. I disconnected it from the fuse box and checked the pins and sure enough there weren't any wires coming off pins 3 or 8! This means I just have to crimp a connector onto the end of a wire and insert it in the 3 and 8 pin slots on the plug, then run it to either fog lamp. I also found out that not only is the 15amp fuse missing in the engine room fuse box, but the fog lamp relay is missing as well! On top of that, I still need to get a water-tight connector to hook up to my fog lamp light bulb. Oh, by the way the fog light bulb bases are GE 880 12V type. I'm going to look for a connector and relay switch online, hook it up, and I'll be good to go! Also, I noticed that I was wrong about the light switch relay turning off the fog lamp. It appears that you must have at least your running lights on before the fog lamp symbol will light up on the instrument panel, and you can in fact have both your headlights and fog lights on at the same time. I'll post pictures once I get all the parts and install them.

Respectfully,
-BM
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Old 02-25-2017, 04:27 AM   #7 (permalink)
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Quote:
Originally Posted by Darrell. View Post
Any chance of posting up the wiring diagram.
Well you seem to have things under control.
I thought the wiring would be there , fuse-switch-relay was all I assumed you needed .

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Old 07-13-2017, 10:09 AM   #8 (permalink)
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Default Update:

I've been trying for a while now to find the correct pin to put into the headlight wiring harness plug, but I've given up on aftermarket options. Yesterday, I pulled the entire wiring harness off an old Forenza at a junk yard, and I'll be using two of those wires in my plug to finally finish my factory-style fog light install. I'll post pictures and a final, detailed guide once I'm done.

-BM
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Old 08-05-2017, 02:39 AM   #9 (permalink)
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Default OEM Fog Light Installation Guide

Materials Needed:
-Fog Lights (OEM #35501-85Z00 & OEM #35502-85Z00)
-Fog Light Plugs
-15amp Fuse
-Fog Light Relay (OEM #96190187)
-Headlight Switch (w/ Fog Light Switch)
-Headlight Wiring Harness w/ Fog Lights (preferred)
or
-Headlight Wiring Harness w/out Fog Lights

Procedure:
-Remove the 5 screws from the plastic cover over the steering column and replace the old Headlight Switch with the new one (there are 2 screws located behind the steering wheel, turn the car on and rotate the wheel to access them).
-Disconnect the battery.
-Insert the 15amp Fuse and Fog Light Relay into the fuse box located under the hood, using the labeled cover as a guide.
-Remove the headlights, bumper, washer fluid reservoir, and any other panels that will be in the way (There are 2 tricky screws in the bumper behind the wheel wells).

-(If using a Headlight Wiring Harness w/ Fog Lights) Disconnect the old Wiring Harness from the bottom of the fuse box under the hood (C104) and all other connectors located throughout the engine compartment. Make sure to take pictures of everything so you'll have a reference for later.
-->Remove the old zip tie mounts from the frame and discard the old wiring harness.
-->Thread the new wiring harness through the engine compartment, using the pictures you took earlier as a guide, and reconnect all of the connectors.
-->Use push-mounted zip ties to secure the wiring harness to the frame of the vehicle.
-->Plug everything back in, reconnect the battery, and double check to make sure everything works!

-(If using a Headlight Wiring Harness w/out Fog Lights) Take the spare Headlight Wiring Harness apart by prying up the piece on the bottom of the plug and using a small screw driver or bobby pin to push up the plastic fins that are holding each pin in place. You want two small pins that are crimped onto thick-gauge wires. You'll also want two thick-gauge wires that have a ground connector on the ends of them. I used a yellow and green w/ white stripe wire for mine.
-->Disconnect the old Wiring Harness from the bottom of the fuse box under the hood (C104) and all other connectors located throughout the engine compartment. Make sure to take pictures of everything so you'll have a reference for later.
-->Remove the old zip tie mounts from the frame and finish removing the wiring harness from the vehicle.
-->Slide the two pins into locations 3 and 8 on C104. Pin 3 will go to the right (passenger) side fog light, and will use ground G102. Pin 8 will go to the left (driver) side fog light, and will use G101.
-->Remove any tape that you need to in order to thread the wires through the conduit, re-taping the wiring harness as you go. Make sure you have enough wire to reach the side marker plug, and leave some extra so that the bumper can be placed on the ground without pulling on the fog light wires. I ran my wires as far as I could out of the last junction before the side marker plug branched off on it's own, and it seemed to work out fine.
-->The ground connectors are designed to lock in together, so simply attach your ground for pins 3 and 8 to G102 and G101 respectively.
-->Once you have your wires ready and everything else is put back together, thread the wiring harness back through the engine compartment, using the pictures you took earlier as a guide, and reconnect all of the connectors.
-->Use push-mounted zip ties to secure the wiring harness to the frame of the vehicle.
-->Ensuring that you connect the hot and ground to the correct wires on the Fog Light Plug (mine were substantially brighter one way compared to the other), crimp and tape your plug in place. I used 3/8" conduit to cover the wires from the junction to the plug.
-->Plug everything back in, reconnect the battery, and double check to make sure everything works!

I've attached pictures of everything as well.

I hope this helps anyone who's interested in installing OEM fog lights on their Forenza, and please let me know if you need any additional information.

Respectfully,
-BM
Attached Thumbnails
Installing Fog Lights on a 2007 Suzuki Forenza-fog-light.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-fog-light-plug.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-fog-light-relay.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-fog-light-switch.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-entire-wiring-harness.jpg  

Installing Fog Lights on a 2007 Suzuki Forenza-fuse-box-labels.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-fuse-box.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-c104-location.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-c104-closeup.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-c104-how-open.jpg  

Installing Fog Lights on a 2007 Suzuki Forenza-pin.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-g101.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-g102.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-push-base-zip-tie.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-l-fog-light-connector.jpg  

Installing Fog Lights on a 2007 Suzuki Forenza-r-fog-light-connector.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-fog-light-bumper.jpg   Installing Fog Lights on a 2007 Suzuki Forenza-end-product2.jpg  
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