Power Memory Seat

CIRCUIT OPERATION
The power memory seat system used in this vehicle uses a control module, power seat switch, power seat motors, seat potentiometers, and a memory set switch. This control module is also shared and used for the power memory mirrors.

Power for the memory control module is supplied on two circuits. Circuit F35 provides a constant battery feed. This circuit is protected by a 30 Amp circuit breaker located under the drivers seat. Power for the F35 circuit is supplied on circuit AB. The A3 circuit is HOT at all times and protected by a 40 Amp fuse located in cavity 2 of the Power Distribution Center (PDC).

The M1 circuit also supplies battery voltage to the control module. This circuit is the Ignition-Off Draw (IOD) circuit, and protected by a 10 Amp fuse located in cavity 10 of the PDC.

Ground for the control module is supplied on circuit Z1. This circuit terminates at the instrument panel left side cowl.

The control module supplies the power for the power seat switch on circuit P9. This circuit feeds a bus bar internal to the switch. Ground for the switch is supplied on circuit Z1 and terminates at the instrument panel left side cowl.

When the operator CLOSES a switch, contacts in the switch CLOSE connecting the switch to the control module. The control module receives this input and operates the proper seat motor.

The following is a list of the circuits that connect from the switch to the control module and their functions:
- P40-Recliner forward
- P48-Recliner rearward
- P19-Front up
- P21-Front down
- P11-Rear up
- P13-Rear down
- P15-Seat forward
- P17-Seat rearward

To operate the seat motor(s), the control module supplies the power and ground. The following is a list of the circuits that connect from the control module to the seat motors:
- P119, P121-Seat front up and down
- P111, P113-Rear up and down
- P115, P117-Seat forward and rearward
- P41, P43-Recliner forward and rearward