Test H

PINPOINT TEST H: THE MEMORY SEAT IS INOPERATIVE

Test H1-H3:

Test H4-H6:

Test H6-H7:

Test H7-H9:

Test H9-H11:

Test H11-H12:

Test H13-H14:

Test H15-H17:

Test H17-H19:

Test H19-H21:

Test H21-H23:

Test H23-H25:

Test H25 Continued:

Normal Operation

NOTE: Before performing diagnostic testing for the driver seat module (DSM), stimulate the module by activating the power seat using the power seat switch, otherwise module communication failure will occur.

The driver power seat switch is powered by battery voltage on circuit 1567 (RD/LB). When pressed, the power seat switch supplies the voltage 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 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 I. Test I

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