Managed to suss out the power supply - the four-pin connector does indeed supply a 12v (green and yellow wire) and ground line (black wire). I got some aligator clips and hooked up the seat to test and viola - we have working seats! I'm still going to check out a set of MY08 seats advertised elsewhere to see if they can plug directly into the four-pin connector otherwise I'll just make a workaround solution with the forementioned spade connectors and cut GT loom.
Here are the three connectors on the bottom of the MY06 GT seat. Left to right, airbag, 2-pin seat power, seatbelt sensor:
Click on image for full size!Here's the car's loom on the floor underneath the driver's seat. The yellow one is the airbag, the white one is the seatbelt sensor
and the black one is the four-pin Occupant Detection System (ODS) connection. The left two pins are the 12v and ground lines.
The other two lines are the data lines from the ODS sensor in the MY08 seats. In this pic I have attached aligator test lead clips to the 12v and ground lines.
EDIT: I just found that the black connector is NOT the ODS connector - it's something else. The ODS on MY08 is handled by the white seatbelt sensor line. I discovered this when I flipped over my MY08 cloth seats and discovered that the black 4-pin connector connects to a connector that just holds it - it's not actually wired to anything. That should mean that this connector probably provides power to MY08 powered seats and also probably the optional heater function we don't seem to get in Australia. I got hold of the MY06 GT loom and noticed that there was a separate 4-pin cable (not used in the GT) in addition to the two-pin power that ran the electric driver's seat adjustment, so it appears Subaru have rolled the functionality of power and heater into one cable. In any case, I need to try and find a set of MY08 electric seats to confirm.
EDIT2: With the new seats I thought I'd lost ODS functionality. Turns out the MY06 GT seats DO have ODS functionality and it passes through the seatbelt sensor cable. The "no seatbelt" alarm for the passenger went off when I had my first passenger since getting the new seats and started moving the car before they got their belt on.
EDIT3: In the pic below, the red cable is connected to the wrong pin. The pin connected in the photo is the seat HEATER power source and is only on when the car is on. The correct pin the the one next to the ground pin (basically the two top pins closest to the clip). This provides a proper 12v source and is always on, even when the car is off allowing adjustment of the seat when the car is not running. I discovered this when I inadvertently burnt out the heater/cruise control fuse (for some reason it's shared) after playing around with the seat too much. The fuse was easily replaced, but I've now moved the seat to the correct pin after consulting the workshop manual.
Click on image for full size!And the other end of the aligator clips are connected to the seat (note in this pic the clips are the wrong way around as I discovered later when pulling the slide adjustment switch forward which made the seat move backward instead, same with the tilt and backrest controls):
Click on image for full size!Corsair wrote:Geez. Nice effort. Did you install the seats yourself?
Yep, they're super-easy:
- Grab a 14mm socket.
- Tilt backrest completely forward.
- Slide the whole seat full forward.
- Remove cosmetic plastic covers over bolts.
- Undo two bolts at rear.
- Slide full back.
- Undo two bolts at front.
- Tilt the entire seat backwards so you can see underneath it.
- Unplug the three connectors (yellow airbag, black 4-pin power and white seatbelt sensor).
- Tilt the seat forward again so it's flat on the floor back in normal position.
- Remove the seat's headrest to give you more space to move vertically.
- Now lift the seat and pull it out the front door.
Corsair wrote:And if I may be so rude, how much did you buy the set for?
I just missed out on a full immaculate set in Canberra for $400 (which is a ridiculous never-see-again bargain), but I ended up getting mine for $800 which is about $200 cheaper than the average wrecker usually sells a full front and rear set for. Some of this I'll get back when I sell the cloth seats.
I was going to procrastinate, but I put it off...