996 heated sport seats install
#1
Rennlist Member
Thread Starter
Join Date: May 2004
Location: Seattle
Posts: 1,020
Likes: 0
Received 0 Likes
on
0 Posts
996 heated sport seats install
Bought this set from a local Rennlister. Thanks Jon!
https://rennlist.com/forums/for-sale...eats-sold.html
Turns out his dad owns Brey-Krause so I even got free schwag, heh.
So what would you all say is the most 'sano place for the seat heater switches? On a 996, the heat controls are on the center console. I'm thinking a small aluminum bracket bolted to the front of each seat lower cushion and hidden from sight. There are a couple unused threaded holes in that area on my new seats. One would just reach down there and click for warm buns.
Oh and yeah I'm going to have a nice set of 993 hardbacks for sale
https://rennlist.com/forums/for-sale...eats-sold.html
Turns out his dad owns Brey-Krause so I even got free schwag, heh.
So what would you all say is the most 'sano place for the seat heater switches? On a 996, the heat controls are on the center console. I'm thinking a small aluminum bracket bolted to the front of each seat lower cushion and hidden from sight. There are a couple unused threaded holes in that area on my new seats. One would just reach down there and click for warm buns.
Oh and yeah I'm going to have a nice set of 993 hardbacks for sale
#2
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
I put my heat switches on each side of the center console. For instance, the drivers side is just above the ODBII port. You cannot see them directly, but you can easily turn them one. In this case, the switches are small rockers (about 5/8" diameter) and only have a high/low setting, so with the carpet etc. they are hidden quite well.
#3
Rennlist Member
Thread Starter
Join Date: May 2004
Location: Seattle
Posts: 1,020
Likes: 0
Received 0 Likes
on
0 Posts
pics? Dumb question, but these 996 sport seats have "hi" and "low" for the heat, correct?
What switches did you use?
Thanks!
What switches did you use?
Thanks!
I put my heat switches on each side of the center console. For instance, the drivers side is just above the ODBII port. You cannot see them directly, but you can easily turn them one. In this case, the switches are small rockers (about 5/8" diameter) and only have a high/low setting, so with the carpet etc. they are hidden quite well.
#6
Addict
Rennlist Member
Rennlist Member
Kie, there are several considerations. One - where to put the switches. Center console on either side of the e-brake Handle works well according to the pics I've seen.
The more important point is where you going to run power from, especially if you attach them to the seats. If you get power directly from the seat harness (logical, yeah?) you get uninterrupted 12V not controlled by ignition. In other words, forget to turn the heater off and your battery is toast (pun intended).
So, run the power from some source controlled by ignition.
The more important point is where you going to run power from, especially if you attach them to the seats. If you get power directly from the seat harness (logical, yeah?) you get uninterrupted 12V not controlled by ignition. In other words, forget to turn the heater off and your battery is toast (pun intended).
So, run the power from some source controlled by ignition.
#7
Rennlist Member
Thread Starter
Join Date: May 2004
Location: Seattle
Posts: 1,020
Likes: 0
Received 0 Likes
on
0 Posts
Great advice thanks man. I thought about the "keyed" power as well. I know 993 models that come with heated seats have the switches at the seat control switch, and surely the stock seat heaters on a 993 power down if you turn the car off. So doesn't that mean that the power source for 993 seat heaters are already controlled by the ignition switch?
I've always thought that you can install heated 993 seats into a 993 that did not originally come with heated seats. You just plug them in and boom they work like factory. So doesn't that mean that every 993 comes with a plug that is ready to have a heated seat plugged into it?
I've always thought that you can install heated 993 seats into a 993 that did not originally come with heated seats. You just plug them in and boom they work like factory. So doesn't that mean that every 993 comes with a plug that is ready to have a heated seat plugged into it?
Kie, there are several considerations. One - where to put the switches. Center console on either side of the e-brake Handle works well according to the pics I've seen.
The more important point is where you going to run power from, especially if you attach them to the seats. If you get power directly from the seat harness (logical, yeah?) you get uninterrupted 12V not controlled by ignition. In other words, forget to turn the heater off and your battery is toast (pun intended).
So, run the power from some source controlled by ignition.
The more important point is where you going to run power from, especially if you attach them to the seats. If you get power directly from the seat harness (logical, yeah?) you get uninterrupted 12V not controlled by ignition. In other words, forget to turn the heater off and your battery is toast (pun intended).
So, run the power from some source controlled by ignition.
Trending Topics
#8
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
I powered my after-market seat heaters off the heater circuit supplied in the plug intended for the seat power. This appears to be switched, my seats do not run after the ignition is off. Really simple, use a standard crimp connector (the round ones), it plugs directly into the socket supplied at the wiring harness right under the seat.
Power is Pin 1 (ground) and Pin 2 (+12V). From what I know, Pin 2 is switched and fused.
Cheers
Mike
Power is Pin 1 (ground) and Pin 2 (+12V). From what I know, Pin 2 is switched and fused.
Cheers
Mike
#9
Rennlist Member
Thread Starter
Join Date: May 2004
Location: Seattle
Posts: 1,020
Likes: 0
Received 0 Likes
on
0 Posts
Awesome thanks
I powered my after-market seat heaters off the heater circuit supplied in the plug intended for the seat power. This appears to be switched, my seats do not run after the ignition is off. Really simple, use a standard crimp connector (the round ones), it plugs directly into the socket supplied at the wiring harness right under the seat.
Power is Pin 1 (ground) and Pin 2 (+12V). From what I know, Pin 2 is switched and fused.
Cheers
Mike
Power is Pin 1 (ground) and Pin 2 (+12V). From what I know, Pin 2 is switched and fused.
Cheers
Mike
#11
Addict
Rennlist Member
Rennlist Member
I powered my after-market seat heaters off the heater circuit supplied in the plug intended for the seat power. This appears to be switched, my seats do not run after the ignition is off. Really simple, use a standard crimp connector (the round ones), it plugs directly into the socket supplied at the wiring harness right under the seat.
Power is Pin 1 (ground) and Pin 2 (+12V). From what I know, Pin 2 is switched and fused.
Cheers
Mike
Power is Pin 1 (ground) and Pin 2 (+12V). From what I know, Pin 2 is switched and fused.
Cheers
Mike
As far as switched power, I'm fairly certain that my seats do move with ignition on. I'll double-check though. I remember installing Recaros with heat and ventilation into the previous cab and just taking power from the regular seat plug. Don't remember if it had both switched and un-switched power leads, though. Thought it did, but I might be mistaken, it's been about 4 years.
#12
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
I have Sparco seats...had the after-market pads put in about a year after I put the seats in, since its nice to have heat in the seats when the Targa top is open and its cold out. My upholstery shop replaced the foam bolsters in the seats, put in the pads, and then ran the power plug to the bottom of the seat. I wired the power to the switches from the plug underneath the seats.
If you have seats in place that take power (for instance back and forth), and then put in aftermarket heat, you will need to dig into the make connector on the seat to intercept the power. In my case, the Sparco's are entirely manual, so the only power i needed was for the heaters.
There are different circuits in the plug for the heat vs seat motors. The heated circuits are heavier, I believe its a 25 Amp circuit.
Cheers,
Mike
If you have seats in place that take power (for instance back and forth), and then put in aftermarket heat, you will need to dig into the make connector on the seat to intercept the power. In my case, the Sparco's are entirely manual, so the only power i needed was for the heaters.
There are different circuits in the plug for the heat vs seat motors. The heated circuits are heavier, I believe its a 25 Amp circuit.
Cheers,
Mike
#13
Addict
Rennlist Member
Rennlist Member
Mike, thanks!
So I'm not crazy, the OEM seats are powered with unswitched 12V and than there are separate (larger gauge) switch wires going to that connector as well? Makes sense.
So I'm not crazy, the OEM seats are powered with unswitched 12V and than there are separate (larger gauge) switch wires going to that connector as well? Makes sense.
#14
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
It appears that way from the wire diagrams.......the pin-out of the connector at the bottom of the seat is as follows (according on my 96 wiring diagrams):
Pin 1 - Ground for heater
Pin 2 - +12 for heater
Pin 3 - Ground for seat cushion height control rear, seat backrest control
Pin 4 - +12 for seat cushion height control rear, seat backrest control
Pin 5 - Ground Lumbar
Pin 6 - +12 Lumbar
Pin 7 - Ground - seat cushion height control front, seat back forward control
Pin 8 - + 12 - seat cushion height control front, seat back forward control
The heater wire is a 1.0 diameter, the rest are 1.5, so the motors take more power than the seat heater.
Cheers,
Mike
Pin 1 - Ground for heater
Pin 2 - +12 for heater
Pin 3 - Ground for seat cushion height control rear, seat backrest control
Pin 4 - +12 for seat cushion height control rear, seat backrest control
Pin 5 - Ground Lumbar
Pin 6 - +12 Lumbar
Pin 7 - Ground - seat cushion height control front, seat back forward control
Pin 8 - + 12 - seat cushion height control front, seat back forward control
The heater wire is a 1.0 diameter, the rest are 1.5, so the motors take more power than the seat heater.
Cheers,
Mike
#15
Drifting