Pinpoint Test 5

PINPOINT TEST 5: THE POWER SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY

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Normal Operation
The power seat switch is powered by battery voltage on circuit (B/W) and is grounded by circuit (B). When pressed in one of the six available directions, the power seat switch supplies voltage to the desired seat motor on the desired direction circuit. The seat switch is normally closed to ground on all six of the seat motor circuits, so if one circuit becomes closed to power, the circuit on the opposite side of the same motor is still closed to ground. The seat motor will then operate, moving the seat track in the desired direction. Moving the seat switch in the opposite direction reverses polarity to the seat motor, which will cause the seat motor to move the seat track in the opposite direction. There are three seat motors integrated to the seat track assembly: one to move the seat horizontally (forward/rearward), one for front vertical (up/down) operation and one for rear vertical (up/down) operation.

Possible Causes
- circuitry
- seat control switch
- seat motor(s)