Battery positive voltage (B+) is supplied at all times to the memory seat module (MSM) via CKT 2840 (ORN) from the MEM T&T Fuse in the rear fuse block. The MSM is supplied ground through CKT 550 (BLK) to G302. Battery positive voltage (B+) is supplied at all times to the MSM via CKT 3740 (RED) or (ORN) from the rear fuse block PWR SEAT circuit breaker, which is used by the MSM to control the seat motors. Each motor contains an electronic circuit breaker (PTC), which will reset only after voltage has been removed from the motor. Battery positive voltage (B+) is supplied at all times to the left seat switch via CKT 3740 (ORN) from the PWR SEAT circuit breaker in the rear fuse block. The left seat switch is supplied ground via CKT 550 (BLK) to G302.

When the left seat switch is operated to move the entire seat forward, battery positive voltage (B+) is applied via the entire seat forward switch contacts and CKT 1522 (TAN) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 285 (TAN) and ground via CKT 284 (LT GRN) to the left horizontal motor. The motor runs to drive the seat forward until the switch is released. When the left seat switch is operated to move the entire seat back, battery positive voltage (B+) is applied via the entire seat back switch contacts and CKT 1523 (LT GRN) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 284 (LT GRN) and ground via CKT 285 (TAN) to the left horizontal motor. The motor runs to drive the seat back until the switch is released. The MSM will also control the left horizontal motor during memory recall and easy exit functions.

When the left seat switch is operated to move the rear vertical up, battery positive voltage (B+) is applied via the rear vertical up switch contacts and CKT 1519 (YEL) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 282 (YEL) and ground via CKT 283 (LT BLU) to the left rear vertical motor. The motor runs to drive the rear of the seat up until the switch is released. When the left seat switch is operated to move the rear vertical down, battery positive voltage (B+) is applied via the rear vertical down switch contacts and CKT 1521 (LT BLU) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 283 (LT BLU) and ground via CKT 282 (YEL) to the left rear vertical motor. The motor runs to drive the rear of the seat down until the switch is released. The MSM will also control the left rear vertical motor during memory recall and easy exit functions.

When the left seat switch is operated to move the front vertical up, battery positive voltage (B+) is applied via the front vertical up switch contacts and CKT 1518 (DK GRN) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 286 (DK GRN) and ground via CKT 287 (DK BLU) to the left front vertical motor. The motor runs to drive the front of the seat up until the switch is released. When the left seat switch is operated to move the front vertical down, battery positive voltage (B+) is applied via the front vertical down switch contacts and CKT 1520 (DK BLU) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 287 (DK BLU) and ground via CKT 286 (DK GRN) to the left front vertical motor. The motor runs to drive the front of the seat down until the switch is released. The MSM will also control the left front vertical motor during memory recall and easy exit functions.

When the left seat switch is operated to recline the seatback forward, battery positive voltage (B+) is applied via the recline forward switch contacts and CKT 276 (LT GRN) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 276 (LT GRN/BLK) and ground via CKT 277 (LT BLU/BLK) to the left recline motor. The motor runs to recline the seatback forward until the switch is released. When the left seat switch is operated to recline the seatback back, battery positive voltage (B+) is applied via the recline back switch contacts and CKT 277 (LT BLU) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 277 (LT BLU/BLK) and ground via CKT 276 (LT GRN/BLK) to the left recline motor. The motor runs to recline the seatback back until the switch is released. The MSM will also control the left recline motor during memory recall and easy exit functions.

When the left seat switch is operated to move the headrest up, battery positive voltage (B+) is applied via the headrest up switch contacts and CKT 1068 (WHT/BLK) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 1257 (YEL) and ground via CKT 1258 (PPL) to the left headrest motor. The motor runs to drive the headrest up until the switch is released. When the left seat switch is operated to move the headrest down, battery positive voltage (B+) is applied via the headrest down switch contacts and CKT 1069 (DK BLU/WHT) to the MSM. In response to this input, the MSM supplies battery positive voltage (B+) via CKT 1258 (PPL) and ground via CKT 1257 (YEL) to the left headrest motor. The motor runs to drive the headrest down until the switch is released. The MSM will also control the left headrest motor during memory recall functions.

The MSM supplies a 5 volt reference voltage via CKT 788 (GRY) and reference ground via CKT 782 (BLK) to the respective seat position sensors. The MSM receives the feedback voltage input from the horizontal position sensor via CKT 569 (DK GRN). The MSM receives the feedback voltage input from the rear vertical position sensor via CKT 568 (TAN). The MSM receives the feedback voltage input from the front vertical position sensor via CKT 557 (BRN/WHT). The MSM receives the feedback voltage input from the recline position sensor via CKT 570 (WHT/BLK). The MSM receives the feedback voltage input from the headrest position sensor via CKT 1060 (RED/BLK).

The left front power window switch receives inputs from the memory function switch. The left front door module (LFDM) supplies a reference ground to the memory function switch via CKT 351 (BLK/WHT). When the SET button is pressed, the set input of the left front power window switch is temporarily grounded through the memory function switch via CKT 614 (ORN). When the 1 button is pressed, the 1 input of the left front power window switch is temporarily grounded through the memory function switch via CKT 616 (PPL). When the 2 button is pressed, the 2 input of the left front power window switch is temporarily grounded through the memory function switch via CKT 615 (WHT). When the EXIT button is pressed, both the 1 and 2 inputs of the left front power window switch are simultaneously grounded through the memory function switch via CKT 616 (PPL) and CKT 615 (WHT).

After receiving an input from the memory function switch, the left front power window switch sends a simple bus interface message to the left front door module (LFDM). In response, the LFDM sends a class 2 message to the memory seat module (MSM) indicating that a memory function has been requested.