 What the heck is this for?, Need a wiring map ! |
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| cashiersjm |
 Apr 21 2019, 09:11 AM
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#1
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Member  Group: Members Posts: 40 Joined: 6-December 09 From: Cashiers, North Carolina Member No.: 11,100 Region Association: South East States 
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Pulled the seats to work on the windshield & found this under the passenger seat.
I have carbs, no FI. Don't have a center console. Some wires so corroded they broke off. Others not connected, Some cut. Any direction to a schematic showing what all these are for would be greatly appreciated.   |
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| 76-914 |
Apr 21 2019, 09:27 AM
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#2
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,698 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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It's already been jumped. Nothing to do. The old seatbelt interlock system.
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| Valy |
Apr 21 2019, 09:37 AM
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#3
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
At this stage you only care about the big yellow wires that are connected together. That bypasses the seatbelt interlock system.
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| ClayPerrine |
Apr 21 2019, 08:50 PM
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#4
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Life's been good to me so far..... Group: Admin Posts: 16,277 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(Valy @ Apr 21 2019, 10:37 AM)  At this stage you only care about the big yellow wires that are connected together. That bypasses the seatbelt interlock system. There is one more wire in there that you care about. It is power from the same circuit that runs the ignition. If it grounds, the car dies. I prefer to disconnect (cut) it at the fuse box. You also need to do some work on that if you want your interior light to work correctly. |
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| iankarr |
Apr 21 2019, 09:16 PM
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#5
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,556 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region
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....And I believe the oil pressure sender wire connects at that block to the wire that goes to the gauge.
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| Jonathan Livesay |
Apr 21 2019, 10:18 PM
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#6
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Senior Member Group: Members Posts: 745 Joined: 13-March 10 From: La Canada CA Member No.: 11,461 Region Association: None
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QUOTE(cuddy_k @ Apr 21 2019, 08:16 PM) ....And I believe the oil pressure sender wire connects at that block to the wire that goes to the gauge. I'm pretty sure that wire comes through the firewall with everything else and just runs straight up the tunnel, along with the alternator warning light wire and the oil temp wire which ends at the plug just behind the shift lever if you don't have a temp gauge. |
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| cashiersjm |
Apr 22 2019, 04:51 AM
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#7
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Member Group: Members Posts: 40 Joined: 6-December 09 From: Cashiers, North Carolina Member No.: 11,100 Region Association: South East States
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QUOTE(ClayPerrine @ Apr 21 2019, 10:50 PM) QUOTE(Valy @ Apr 21 2019, 10:37 AM) At this stage you only care about the big yellow wires that are connected together. That bypasses the seatbelt interlock system. There is one more wire in there that you care about. It is power from the same circuit that runs the ignition. If it grounds, the car dies. I prefer to disconnect (cut) it at the fuse box. You also need to do some work on that if you want your interior light to work correctly. My interior light has never worked. I pulled the back pad & those wires (brown) run down the firewall into the tunnel. Looking at that electrical block, does it require any relay module to be plugged in to engage other functions? My car is a '74, would the wiring connections be the same on a '75? I have a '75 I can pull the seat to compare. |
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| cashiersjm |
Apr 22 2019, 04:53 AM
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#8
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Member Group: Members Posts: 40 Joined: 6-December 09 From: Cashiers, North Carolina Member No.: 11,100 Region Association: South East States
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QUOTE(Jonathan Livesay @ Apr 22 2019, 12:18 AM) QUOTE(cuddy_k @ Apr 21 2019, 08:16 PM) ....And I believe the oil pressure sender wire connects at that block to the wire that goes to the gauge. I'm pretty sure that wire comes through the firewall with everything else and just runs straight up the tunnel, along with the alternator warning light wire and the oil temp wire which ends at the plug just behind the shift lever if you don't have a temp gauge. My oil pressure light works, on the gauge in the dash. I don't have a temp gauge. |
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| Chi-town |
Apr 22 2019, 09:16 AM
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#9
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Senior Member Group: Members Posts: 851 Joined: 31-August 18 From: Disneyland Member No.: 22,446 Region Association: Southern California |
That contains the seat belt logic starter cut relay (missing and bypassed in your pic), the warning buzzer, and rear defroster relay (if equipped).
The brown wires that run from that harness are the back pad light (should be 3-4 wires to two connectors on one side and a single brown wire on the other), the parking brake switch, and the ground for the rear defroster. The power for the rear defroster is the big green wire behind the back pad. |
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| Dave_Darling |
Apr 22 2019, 11:10 AM
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#10
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914 Idiot Group: Members Posts: 15,151 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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There is no effect to unplugging that relay if the two fat yellow/yellow-red wires have been spliced together.
What everyone else is primarily talking about is things that could go wrong if you cut the rest of the wires going to the socket. Either that, or if something damages a wire and shorts it to ground. (Ironic that Clay is the one warning of "shorts". (IMG:style_emoticons/default/wink.gif) ) --DD |
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| SirAndy |
Apr 22 2019, 11:40 AM
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#11
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Resident German Group: Admin Posts: 42,197 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Whatever you do, please don't cut any more wires.
Tape up anything that looks like it may be able to short out, there's no need to cut anything. (IMG:style_emoticons/default/shades.gif) |
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| JeffBowlsby |
Apr 22 2019, 12:08 PM
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#12
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,895 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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There is no rear defroster relay at this location, that is on the relay board with the voltage regulator for every model year 914.
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| cashiersjm |
Apr 22 2019, 05:03 PM
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#13
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Member Group: Members Posts: 40 Joined: 6-December 09 From: Cashiers, North Carolina Member No.: 11,100 Region Association: South East States
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I didn't cut any wires, just removed the seat and found this mess and thought they must go to something; obviously not. I'll insulate the ends of all the bare ones, tuck them back in and move on to the next chore. Thanks for all the info.
Jim |
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