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Ask A. Penland Your Own Question
A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Lincoln
Satisfied Customers: 6597
Experience:  ASE Master Certified. ASE Gasoline Engine Performance Certified,Ford Senior Master Technician
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2000 Lincoln LS. Driver side seat won't move. It is

Customer Question

2000 Lincoln LS. Driver side seat won't move. It is totally dead. Lumbar and electric mirrors work. Fuses f421 & f207 are OK. How do I troubleshoot?
Submitted: 1 year ago.
Category: Lincoln
Expert:  A. Penland replied 1 year ago.

First, do you have memory seats or just power seats?

Customer: replied 1 year ago.
memory seats
Expert:  A. Penland replied 1 year ago.

Do you have a test light or digital multi meter to do a few electrical tests?
Since your 2000 Lincoln LS has memory seats, you have a Drivers Seat Module which controls the position of the seat when the memory buttons are pressed and also controls the power to the seat motors from the switch. See the diagrams below.

Customer: replied 1 year ago.
I have a digital multi meter and know how to use it
Expert:  A. Penland replied 1 year ago.

You will either need to check the drivers seat module for trouble codes or unbolt the drivers seat and check for power at each seat motor under the seat and move the switch through the positions and check for power at the wires. Follow the wiring diagram I posted earlier.

Customer: replied 1 year ago.
There are no trouble codes in the onboard computer. Looking at the diagrams you sent me the only common power connection is through the 2 fuses, which are OK. Two questions: 1. Where is the driver seat module located? 2. Without power to the seat how do I move the seat to get the mounting bolts out? Is there a procedure for this?
Expert:  A. Penland replied 1 year ago.

It is mounted under the drivers seat on the seat frame.

To get the seat out when the power function is not working is a challenge. There are no set procedures to do this because the seat can fail in a lot of positions. To get the seat mounting bolts, you will either have to use a wrench or a short handled ratchet wrench.

Customer: replied 1 year ago.
Have you seen this problem before? Is there a common failure cause?
Expert:  A. Penland replied 1 year ago.

Have seen the drivers seat module fail and also wiring issues to the module under the drivers seat.

Customer: replied 1 year ago.
Guess I'll have to get the seat out. Thanks for the help.
Customer: replied 1 year ago.
How long will this dialog be available to me?
Expert:  A. Penland replied 1 year ago.

As long as you need it. Just reply back on this page when you need more information for this problem. I do work at a dealership during the day and really on get online in the evening after work.

Customer: replied 1 year ago.
Thanks, ***** ***** have a part number for the control module?
Expert:  A. Penland replied 1 year ago.

I'll need the VIN# ***** look it up.

Customer: replied 1 year ago.
1LNHM87A9YY775247
Expert:  A. Penland replied 1 year ago.

XW4T-13C789-AD is the part number for the drivers seat module.

Customer: replied 1 year ago.
Thanks
Expert:  A. Penland replied 1 year ago.

Your welcome.