C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Question about Wiring Schematic

Old Mar 8, 2011 | 09:41 PM
  #1  
Dr. Gonzo's Avatar
Dr. Gonzo
Thread Starter
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2007
Posts: 167
Likes: 10
From: CT
Default Question about Wiring Schematic

I'm trying at add fog lights on my FRC and for them to function like they were factory installed but I am unsure if my car was pre-wired for them. I started to look at the fog light wiring schematic to see what wires I am working with and I'm unclear how to read some parts of it. So far I have confirmed that all the wires are in the correct location on the BCM and the ORN, ORN/BLK and YEL wires are in the trunk release socket; but not the purple. Moving to fuse block under the hood is where I get confused...



Here are my issues:

            Can someone clarify these issues for me? And any input from guys who have walked this path would be great!

            Reply
            Old Mar 8, 2011 | 09:53 PM
              #2  
            lucky131969's Avatar
            lucky131969
            Tech Contributor
            15 Year Member
            Active Streak: 30 Days
            Community Builder
            Liked
             
            Joined: Jan 2007
            Posts: 19,448
            Likes: 1,155
            From: Dyer, IN
            Default

            Originally Posted by SantaCruz163
            I'm trying at add fog lights on my FRC and for them to function like they were factory installed but I am unsure if my car was pre-wired for them. I started to look at the fog light wiring schematic to see what wires I am working with and I'm unclear how to read some parts of it. So far I have confirmed that all the wires are in the correct location on the BCM and the ORN, ORN/BLK and YEL wires are in the trunk release socket; but not the purple. Moving to fuse block under the hood is where I get confused...



            Here are my issues:
              To the left is the wire diameter(gauge), to the right is the ciruit designator.
                Not that I've see. Bill may have one, since he disassemble a C5 in his backyard
                  Pin D1, is in connector C2
                    "L" usually means "line or feed". I'm stretching with "J" as "junction"

                      Actually, in this schematic, there are two purple wires in connector C3. One at pin C1, and one at pin E4. Also, one purple wire at pin D1, connector C2.

                      Can someone clarify these issues for me? And any input from guys who have walked this path would be great!

                      Answered above.

                      Last edited by lucky131969; Mar 8, 2011 at 09:57 PM.
                      Reply
                      Old Mar 9, 2011 | 07:35 AM
                        #3  
                      Dr. Gonzo's Avatar
                      Dr. Gonzo
                      Thread Starter
                      Instructor
                      15 Year Member
                      Conversation Starter
                      All Eyes On Me
                       
                      Joined: Jan 2007
                      Posts: 167
                      Likes: 10
                      From: CT
                      Default

                      One more question; how should the wiring be laid out @ Fuse 6 with the PPL wires?

                      The way I understand the schematic is that the PPL wire from the switch runs out to the engine compartment and ties in with the PPL wires, for each fog light, and all 3 wires going into one (1) pin for Fuse 6 and the other pin runs a wire into the pin for J2 on Relay 39.

                      Is this correct?

                      Reply
                      Old Mar 9, 2011 | 09:40 AM
                        #4  
                      lucky131969's Avatar
                      lucky131969
                      Tech Contributor
                      15 Year Member
                      Active Streak: 30 Days
                      Community Builder
                      Liked
                       
                      Joined: Jan 2007
                      Posts: 19,448
                      Likes: 1,155
                      From: Dyer, IN
                      Default

                      Originally Posted by SantaCruz163
                      One more question; how should the wiring be laid out @ Fuse 6 with the PPL wires?

                      The way I understand the schematic is that the PPL wire from the switch runs out to the engine compartment and ties in with the PPL wires, for each fog light, and all 3 wires going into one (1) pin for Fuse 6 and the other pin runs a wire into the pin for J2 on Relay 39.

                      Is this correct?

                      All the purple wires terminate at the underhood fuse box. The fuse box is represented by a dotted line. Everything that resides inside the dotted line box, is an internal connection. Internal to the fuse box, the load side of fuse #6, is bussed to D1 of C2, C1 of C3, and E4 of C3. So no, they all do not go into one pin, rather, the purple wires enter the fuse box at 3 separate pins. The connection between the line side of fuse #6 and J2, is an internal connection as well....within the fuse box.
                      Reply
                      Old Mar 9, 2011 | 10:56 AM
                        #5  
                      Bill Curlee's Avatar
                      Bill Curlee
                      Tech Contributor
                      Supporting Lifetime Gold
                      Veteran: Navy
                      25 Year Member
                      Liked
                      Community Favorite
                       
                      Joined: Dec 1999
                      Posts: 32,910
                      Likes: 2,402
                      From: Anthony TX
                      CI 6,7,8,9,11 Vet
                      St. Jude Donor '08
                      Default

                      I added FOG LIGHTS to my 02 Z. All you need to do is purchase the dual switch and plug it in to the connector that the single switch is connected to.

                      All the wiring UP-TO the under hood fuse panel is there. The relay and fues was even there on my car. All you need to do is connect a single wire to it to go to the fog lights. I used ONE wire from the fuse box that branched off to both fog lights. I grounded the lights to the frame

                      Its been a LOOOOONG time, but,,, I think I spliced fog light supply wire into the purple wire out of D1. I will have to go back and look.

                      I got the clip nut for the mounting bracket at NAPA.
                      Reply
                      Old Mar 9, 2011 | 11:21 AM
                        #6  
                      Dr. Gonzo's Avatar
                      Dr. Gonzo
                      Thread Starter
                      Instructor
                      15 Year Member
                      Conversation Starter
                      All Eyes On Me
                       
                      Joined: Jan 2007
                      Posts: 167
                      Likes: 10
                      From: CT
                      Default

                      I do not have the PPL wire at the switch show in the schematic so I want to varify the fuse block pinout to see if I am missing other wires. And I am still unclear on how the PPL wires tie together at Fuse 6.

                      Reply
                      Old Mar 9, 2011 | 11:36 AM
                        #7  
                      lucky131969's Avatar
                      lucky131969
                      Tech Contributor
                      15 Year Member
                      Active Streak: 30 Days
                      Community Builder
                      Liked
                       
                      Joined: Jan 2007
                      Posts: 19,448
                      Likes: 1,155
                      From: Dyer, IN
                      Default

                      Originally Posted by SantaCruz163
                      I do not have the PPL wire at the switch show in the schematic so I want to varify the fuse block pinout to see if I am missing other wires. And I am still unclear on how the PPL wires tie together at Fuse 6.

                      You will need a meter, to check the reistance betwen the connections at the fuse box connectors, relay socket, fuse, etc. You cannot see the internal connections, as I explained, all connections in the underhood fusebox( in the dotted line area) are internal....you cannot see them. That's why a meter is required to verify.
                      Reply
                      Old Mar 9, 2011 | 12:56 PM
                        #8  
                      Dr. Gonzo's Avatar
                      Dr. Gonzo
                      Thread Starter
                      Instructor
                      15 Year Member
                      Conversation Starter
                      All Eyes On Me
                       
                      Joined: Jan 2007
                      Posts: 167
                      Likes: 10
                      From: CT
                      Default

                      Ahh, so all the connections inside the dotted line are interior. That clarifies my issue.

                      Now I just need to know where the PPL wires plug in. Is this an accurate depiction of the pinout for C1, C2 and C3?



                      Reply
                      Corvette Stories

                      The Best of Corvette for Corvette Enthusiasts

                      story-0

                      10 Ugly Corvettes That We Still Kinda Love

                       Joe Kucinski
                      story-1

                      Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

                       Brett Foote
                      story-2

                      10 Things Every Corvette Owner Needs (2026 Edition)

                       Michael S. Palmer
                      story-3

                      8 Most "Only Corvette Owners Understand" Quirks and Problems

                       Pouria Savadkouei
                      story-4

                      10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

                       Joe Kucinski
                      story-5

                      How Much Horsepower Every Corvette Engine "LOST" in 1972

                       Joe Kucinski
                      story-6

                      Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

                       Michael S. Palmer
                      story-7

                      Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

                       Joe Kucinski
                      story-8

                      150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

                       Joe Kucinski
                      story-9

                      8 Coolest Corvette Pace Cars (and Replicas) of All Time

                       Verdad Gallardo
                      Old Mar 9, 2011 | 01:10 PM
                        #9  
                      lucky131969's Avatar
                      lucky131969
                      Tech Contributor
                      15 Year Member
                      Active Streak: 30 Days
                      Community Builder
                      Liked
                       
                      Joined: Jan 2007
                      Posts: 19,448
                      Likes: 1,155
                      From: Dyer, IN
                      Default

                      Originally Posted by SantaCruz163
                      Ahh, so all the connections inside the dotted line are interior. That clarifies my issue.

                      Now I just need to know where the PPL wires plug in. Is this an accurate depiction of the pinout for C1, C2 and C3?




                      Correct. Below, is a view of the fuse box, looking from the bottom.


                      Reply

                      Get notified of new replies

                      To Question about Wiring Schematic



                      Thread Tools
                      Search this Thread

                      All times are GMT -4. The time now is 02:15 PM.

                      story-0
                      10 Ugly Corvettes That We Still Kinda Love

                      Slideshow: 10 ugly Corvettes that we still kinda love.

                      By Joe Kucinski | 2026-06-03 10:34:17


                      VIEW MORE
                      story-1
                      Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

                      A lot of money has changed hands at the online auction house over the years.

                      By Brett Foote | 2026-06-03 10:21:50


                      VIEW MORE
                      story-2
                      10 Things Every Corvette Owner Needs (2026 Edition)

                      Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

                      By Michael S. Palmer | 2026-06-03 11:09:53


                      VIEW MORE
                      story-3
                      8 Most "Only Corvette Owners Understand" Quirks and Problems

                      Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

                      By Pouria Savadkouei | 2026-05-28 09:31:39


                      VIEW MORE
                      story-4
                      10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

                      Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

                      By Joe Kucinski | 2026-05-27 17:20:09


                      VIEW MORE
                      story-5
                      How Much Horsepower Every Corvette Engine "LOST" in 1972

                      Slideshow: How much horsepower every Corvette engine lost in 1972.

                      By Joe Kucinski | 2026-05-27 16:54:53


                      VIEW MORE
                      story-6
                      Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

                      Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

                      By Michael S. Palmer | 2026-04-03 00:00:00


                      VIEW MORE
                      story-7
                      Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

                      Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

                      By Joe Kucinski | 2026-05-20 07:23:03


                      VIEW MORE
                      story-8
                      150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

                      Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

                      By Joe Kucinski | 2026-05-12 16:54:12


                      VIEW MORE
                      story-9
                      8 Coolest Corvette Pace Cars (and Replicas) of All Time

                      Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

                      By Verdad Gallardo | 2026-05-11 09:50:51


                      VIEW MORE