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914World.com _ 914World Garage _ seat belt relay

Posted by: porscheteck914 Apr 5 2023, 08:46 PM

Hi Does anyone have pictures of the seat belt relay board and wires behind the seat of 1974 914 ? Or were I can get a wire diagram of this . Some idjut hacked mine up. Would like to fix this . thanks kindly

Posted by: Garland Apr 5 2023, 08:56 PM

Here’s 3 good clickable links:


https://www.google.com/url?client=internal-element-cse&cx=002408345898193228772:ajvfxschcgc&q=http://www.914world.com/bbs2/index.php%3Fshowtopic%3D129787&sa=U&ved=2ahUKEwjfjdWMoJT-AhV0k4kEHcjaDVEQFnoECAkQAQ&usg=AOvVaw3F1HwLg3ewF3iYNRD9CFjl

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https://www.google.com/url?client=internal-element-cse&cx=002408345898193228772:ajvfxschcgc&q=http://www.914world.com/bbs2/index.php%3Fshowtopic%3D103524&sa=U&ved=2ahUKEwjfjdWMoJT-AhV0k4kEHcjaDVEQFnoECAIQAQ&usg=AOvVaw1HAt5zbZmHC4y-UvlbRXXO

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https://www.google.com/url?client=internal-element-cse&cx=002408345898193228772:ajvfxschcgc&q=http://www.914world.com/bbs2/index.php%3Fshowtopic%3D41066%26st%3D5&sa=U&ved=2ahUKEwjfjdWMoJT-AhV0k4kEHcjaDVEQFnoECAYQAQ&usg=AOvVaw1tlO-wzHpuVb7_rWCDg4um

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Posted by: wonkipop Apr 6 2023, 01:48 AM

QUOTE(porscheteck914 @ Apr 5 2023, 08:46 PM) *

Hi Does anyone have pictures of the seat belt relay board and wires behind the seat of 1974 914 ? Or were I can get a wire diagram of this . Some idjut hacked mine up. Would like to fix this . thanks kindly


why do want to fix it?

i took mine out of action back in 92.
the relay was causing all sorts of problems once it heated.
like no start.

i got sick of pushing the car in reverse on my own to jump start it.

you are better off without it. trust me.

or are you trying to fix up a bigger fark up that someone did trying to solve this problem?

Posted by: friethmiller Apr 6 2023, 07:47 AM

You need this diagram. These are two pics from my restoration and the wiring harness diagram. This area was a complete mess and I restored it back to original - minus the starter yellow wire bypass (red arrow), which was a factory recall item. It's actually pretty easy to do. Best of luck!

Attached Image Attached Image Attached Image



Posted by: friethmiller Apr 6 2023, 07:56 AM

QUOTE(wonkipop @ Apr 6 2023, 02:48 AM) *

QUOTE(porscheteck914 @ Apr 5 2023, 08:46 PM) *

Hi Does anyone have pictures of the seat belt relay board and wires behind the seat of 1974 914 ? Or were I can get a wire diagram of this . Some idjut hacked mine up. Would like to fix this . thanks kindly


why do want to fix it?

i took mine out of action back in 92.
the relay was causing all sorts of problems once it heated.
like no start.

i got sick of pushing the car in reverse on my own to jump start it.

you are better off without it. trust me.

or are you trying to fix up a bigger fark up that someone did trying to solve this problem?

Agree! I actually never installed either of the relays into this plastic board. I didn't see any reason to have it hooked up. I just wanted wiring put back to original.

Posted by: porscheteck914 Apr 6 2023, 06:12 PM

QUOTE(wonkipop @ Apr 6 2023, 02:48 AM) *

QUOTE(porscheteck914 @ Apr 5 2023, 08:46 PM) *

Hi Does anyone have pictures of the seat belt relay board and wires behind the seat of 1974 914 ? Or were I can get a wire diagram of this . Some idjut hacked mine up. Would like to fix this . thanks kindly


why do want to fix it?

i took mine out of action back in 92.
the relay was causing all sorts of problems once it heated.
like no start.

i got sick of pushing the car in reverse on my own to jump start it.

you are better off without it. trust me.

or are you trying to fix up a bigger fark up that someone did trying to solve this problem?


Posted by: porscheteck914 Apr 6 2023, 06:20 PM

QUOTE(porscheteck914 @ Apr 6 2023, 07:12 PM) *

QUOTE(wonkipop @ Apr 6 2023, 02:48 AM) *

QUOTE(porscheteck914 @ Apr 5 2023, 08:46 PM) *

Hi Does anyone have pictures of the seat belt relay board and wires behind the seat of 1974 914 ? Or were I can get a wire diagram of this . Some idjut hacked mine up. Would like to fix this . thanks kindly


why do want to fix it?

i took mine out of action back in 92.
the relay was causing all sorts of problems once it heated.
like no start.

i got sick of pushing the car in reverse on my own to jump start it.

you are better off without it. trust me.

or are you trying to fix up a bigger fark up that someone did trying to solve this problem?
Thanks to all the replys.This is a great place everyone so helpful. Wonkipop - yea your right, I probly be opening a pandoras box if I put it all back stock. I am gong to do what you did. Tidy things up. Join the big yellers & straight out the wiring and leave the relays off. Thanks a million . my first post


Posted by: wonkipop Apr 6 2023, 08:38 PM

QUOTE(porscheteck914 @ Apr 6 2023, 06:20 PM) *

QUOTE(porscheteck914 @ Apr 6 2023, 07:12 PM) *

QUOTE(wonkipop @ Apr 6 2023, 02:48 AM) *

QUOTE(porscheteck914 @ Apr 5 2023, 08:46 PM) *

Hi Does anyone have pictures of the seat belt relay board and wires behind the seat of 1974 914 ? Or were I can get a wire diagram of this . Some idjut hacked mine up. Would like to fix this . thanks kindly


why do want to fix it?

i took mine out of action back in 92.
the relay was causing all sorts of problems once it heated.
like no start.

i got sick of pushing the car in reverse on my own to jump start it.

you are better off without it. trust me.

or are you trying to fix up a bigger fark up that someone did trying to solve this problem?
Thanks to all the replys.This is a great place everyone so helpful. Wonkipop - yea your right, I probly be opening a pandoras box if I put it all back stock. I am gong to do what you did. Tidy things up. Join the big yellers & straight out the wiring and leave the relays off. Thanks a million . my first post



i had a very good auto electrician sort mine out 30 years ago back here in australia after i got the car home. we wired in a hidden kill switch thats hidden under the passenger seat (now drivers seat).
the rest of it is all still there. didn't bother to remove it. relays and all.
he just wired around it.
he was one of the few blokes here who could work out what was going on.
he'd struck the same problem in some privately imported 74+ US muscle cars that folks had brought it so he went for it straight away. i still remember he asked me what year it was. i said 74. he went straight to the seat belt couplings and traced the wires.
he had the passenger seat out in no time and it was all solved in about 15 minutes.
no one else here had a clue what was causing the hot start problem.
which wasn't really a hot start so much as a hot relay after you had the ignition on for a while. headbang.gif
still remember it well. biggrin.gif

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