Test E: The Power Seat Does Not Move Horizontally/Vertically

PINPOINT TEST E: THE POWER SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY

Normal Operation
When the driver seat control switch is pressed in one of 6 available directions, battery voltage and ground is supplied to one of 3 seat track motors through horizontal motor circuits 980 (YE/WH) and 981 (YE/WH), front height motor circuits 979 (RD/LB) and 990 (YE/LB) or rear height motor circuits 982 (YE/LG) and 983 (RD/LG). Similarly, the passenger seat control switch supplies battery voltage and ground through horizontal motor circuits 986 (YE/WH) and 987 (RD/WH), front height motor circuits 988 (YE/LG) and 989 (RD/LG) or rear height motor circuits 984 (YE/LB) and 985 (RD/LB). Both seat control switches are normally closed to ground on all 6 seat motor circuits, so when one circuit is switched to power, the opposite motor circuit remains closed to ground. The seat motor will then operate, moving the seat track horizontally (forward/reverse) or vertically (front height and rear height). When pressed in the opposite direction, the seat control switch reverses the polarity to the respective seat track motor(s) to move the seat in the opposite direction.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Seat control switch
- Seat track

E1-E3:

E3-E4:

E5-E6:

E7-E9:

E9-E10:

E11-E12:

E13-E15:

E15-E16:

E17-E18:

E19-E20: