93 SC-400 Power Seat Wiring Diagram - ClubLexus - Lexus Forum Discussion

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93 SC-400 Power Seat Wiring Diagram

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Old 04-28-14, 01:55 PM   #1
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Default 93 SC-400 Power Seat Wiring Diagram

Where can I find a wiring diagram for power seats in my '93 SC-400 (specifically passenger side).
The main "box" connector appears to have only 5 wires. The remaining spaces are unused.

Two Heavier Gauge Wires
White with Black Tracer
Black with White Tracer

Three Smaller Gauge Wires
Red with Grey Tracer
Green with Grey Tracer
Black with Grey Tracer

The motor spins and reverses properly. The positioner on the OUTSIDE of the passenger seat moves as it should. However, the INSIDE of the passenger seat does not move at all when driven by the motor. If I manually rotate the screw axle on the non-functioning side, the slide will move back and forth as it should. Since the motor spins and reverses just fine, I suspect there is a stripped gear where the motor shaft meets the screw axle-shaft.

Even though I suspect my problem is a mechanical issue (not electrical), I would like to check everything out while the seat is out of the car for repairs.

Also, does anyone have a step-by-step or instructions on how to remove motor from the seat?
I hate to pull apart more than is necessary to gain access
I need information on the seat dis-assembly more than I really need the wiring diagram.

Last edited by sparkyguy; 04-28-14 at 02:13 PM. Reason: Additional info needed
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