9T3VETTE

Does anybody have a picture of the wiring underneath the power seat switches?? Mine also has the fx3 if possible.

I'm trying to track down some wiring issues from the previous owner, however im terrible at reading electrical schematics. The wiring looks suspect to me and my power bolster and air pump do not work. A picture of the wiring under the switches would be great.

Thanks.

9T3VETTE

To add to my post. The reason for looking into this is because the lumbar and bolster have no power. Both pumps work, however the electrical connections have no power running to them. I'm trying to track down where the wiring (orange and black wire) for the lumbar and bolster run to.
It runs under the carpet under the seat and i'm assuming up through the console. However where does power come from? Is the orange and black wire attached to the power seat switch for power?

92ragtop

I don't have a pic, but.....
The bolster and lumbar pump have their switches on the seat, so a pic from the console switch won't help you. I had inoperative bolster and lumbar when I got my 92. I just cleaned the lumbar switch and fixed the diaphram to fix that part of the problem. The bolster switch is another issue, since replacements are almost impossible to find. If cleaning the contacts inside the switch doesn't resolve the problem, (it didn't on mine), then you need to try something else. On mine, I put 12 volts to the bolster motor connector to move them to where I wanted. You can reverse the polarity to move them in the opposite direction. Since I never change the bolster position, this fix works for me.

If you want the wiring diagram, let me know.

9T3VETTE

^^Maybe you can not answer this question, but it looks like power for the bolster and lumbar motor come from the same source, which is the orange and black wires..is this hot all the time or just when the switch is toggled?

I have no power to the orange power wire (I believe this is my problem not the switch), so im trying to chase that back but it goes under the carpet. Since the power seats (which work) and the lumbar/bolster share the same 30amp breaker I'm assuming the lumbar/bolster somehow tie into the power seat controls? It may be a pinched or cut line im not sure.

92ragtop

For a '92, (assume that '93 is the same):
It appears that the seat transmission and the bolster/lumbar are on different harness/ciruits?

9T3VETTE

hmmm, maybe it's different. Wish I had some better electrical schematic reading skills! So on your 92 the lumbar/bolster functions dont run through the power circuit breaker in the i/p fuse panel?

92ragtop

I couldn't tell you since I've never had to check for that, but the schematic shows power coming through a 30 amp breaker.
I'll take a look in my FSM to see if the seat transmission power comes off of the same breaker.

9T3VETTE

The more studying I do of the electrical schematic the more it looks like it is a ground issue. Going to check the ground G202 located in the right kick panel first. If not, i'll move to check for a short or open ground in circuit 60. I'll post what the results are.

oasep

I have same problem..Looks that seats have extra fuse somewhere.
I am going also follow the cables.

dayle97se

92ragtop - any chance you can post pics of the main seat switch wiring diagram from your FSM? not the lumbar part.... thx!