Seats: Description and Operation

There are three reversible motors that operate the driver's power seat. The front height and rear height of the seat are operated by separate motors. Each can be raised or lowered independently of the other. When the Entire Seat switch is pushed to the "UP" or "DOWN" position, both motors run to move the front and rear of the seat at the same time.

The Forward/Back Adjuster Motor is operated by the Entire Seat switch. When it is held in the "FORWARD" position, battery voltage is applied through the switch contacts and CKT 285 to the Forward/Back Adjuster Motor. The motor is grounded through CKT 284 the Seat Adjuster Switch, and CKT 550 to G301 (Oldsmobile) or G302 (Chevrolet).

In the "BACK" position, CKT 284 receives battery voltage and CKT 285 is grounded. This reversed polarity causes the motor to run in the opposite direction and drive the seat backward.

The Front Height and Rear Height Adjuster Motors work in a similar way when the Front or Rear Height Switch is operated.

To raise the entire seat, the Entire Seat Switch is held in the "UP" position. This applies battery voltage from CKT 340 through CKT 282 and CKT 286 to the Rear Height Adjuster and Front Height Adjuster Motors. The motors are grounded through CKT 283 and CKT 287, the Seat Adjuster Switch, and CKT 550 to G301 (Oldsmobile) or G302 (Chevrolet). Both motors run to drive the entire seat up. A similar action occurs to move the entire seat down.

Each motor contains a solid state self-resetting circuit breaker to protect it from overload.