Test I
PINPOINT TEST I: THE MEMORY SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY - DRIVERTest I1:
Test I1-I2:
Test I3-I4:
Test I5-I6:
Test I7-I8:
Test I9-I11:
Test I12-I13:
Test I14-I15:
Test I16-I17:
Test I18-I19:
Test I20-I21:
Test I22-I23:
Test I24-I26:
Test I27-I28:
Test I29-I30:
Test I31-I33:
Test I33-I35:
Test I36-I37:
Test I38-I39:
Test I40-I42:
Test I43-I45:
Test I46:
Test I47:
Normal Operation
The power seat switch is powered by battery voltage to driver seat control switch circuit 29-AH35 (OG/YE) and is supplied ground on driver circuit 91-AH35 (BN). 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 power recliner cannot be repaired separately. If the power recliner needs to be repaired, an entirely new front seat backrest frame must be installed.
Possible Causes
A memory seat that does not move horizontally/vertically can be caused by:
- a fuse.
- wiring, terminals, or connectors.
- a faulty memory set switch.
- a faulty power seat track motor position sensor.
- a faulty DSM