Test F

PINPOINT TEST F: THE MEMORY SEAT IS INOPERATIVE

Test F1:

Test F2-F5:

Test F6:

Test F7:

Test F8-F9:

Test F10-F11:

Test F12-F13:

Test F14-F15:

Test F16-F17:

Test F18-F19:

Test F20-F21:

Test F22-F23:

Test F24-F25:

Test F26:

Normal Operation
The driver power seat switch is powered by battery voltage on circuit 490 (RD) and is supplied ground on circuit 1205 (BK). When pressed, the power seat switch supplies the voltage and ground to the driver seat module (DSM). The DSM then supplies voltage and ground to the appropriate power seat track motor based on the inputs received from the seat control switch. When pressed in the opposite direction, the power seat switch reverses the polarity to the DSM, which moves the seat in the opposite direction. There are three power seat track motors that combine to move the seat horizontally (forward/reverse) and vertically (front up/down and rear up/down).

The following pinpoint test diagnoses a memory seat that does not operate in one or more directions when using the power seat switch. If the memory seat moves in all directions using the power seat switch, GO to Pinpoint Test G. Test G

Possible Causes
An inoperative memory seat can be caused by:
- a fuse.
- wiring, terminals, or connectors.
- a faulty seat control switch.
- a faulty power seat track motor.
- a faulty DSM.