Power seats not working in 2006 gran marquis?

WARNING: If equipped with fire suppression system, refer to Section 419-03 for Important Safety Warnings.

1. Verify the customer concern by operating the system.

1. Visually inspect for obvious signs of mechanical or electrical damage.
   
   Visual Inspection Chart Mechanical Electrical
   • Loose or damaged seat mounting hardware
   • Front seat tracks obstructed
   • Seat at limit(s) of travel
   • Damaged switch(es)
   • Damaged seat trim cover
   • Damaged seat track
   • Battery junction box:
     • Circuit breaker 601 (20A)
     • Fuse 15 (20A)
   • Central junction box:
     • Fuse 15 (7.5A)
     • Fuse 18 (10A)
   • Faulty wiring harness
   • Loose, corroded or damaged connectors
   • Damaged seat control switch
   • Damaged lumbar control switch
   • Damaged heated seat switch
   • Damaged seat track motor

1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

1. If the concern is not visually evident, verify the symptom. GO to Symptom Chart .

Symptom Chart Condition Possible Sources Action

• The power seat is inoperative

• Circuit breaker.
• Circuitry.
• Seat control switch.
• Seat track motor.

• Go To Pinpoint Test A .

Both front seats don't work ?

Pinpoint Test A: The Power Seat Is Inoperative
Normal Operation The seat control switch is powered by battery voltage to circuit 517 (BK/WH) and is supplied ground on circuit 57 (BK). The seat control switch applies battery power and ground directly to one of 3 bi-directional seat track motors, respectively, to move the seat. Toggling the seat control switch to the opposite position reverses the voltage polarity applied to the respective seat motor and moves the seat in the opposite direction.
Possible Causes An inoperative power seat can be caused by:

• a faulty circuit breaker.
• a faulty circuit.
• a faulty seat control switch.
• a faulty seat track.

Easiest thing to check first is the fuse. If that's good. I'd disconnect the plug at the motor and see if it's getting power when you try to move it.