Windows wont go up or down

Asked by Guru8LQKB Dec 31, 2019 at 11:39 AM about the 2009 Mercury Grand Marquis

Question type: Maintenance & Repair

the windows wont go up or down. It doesnt even make a
sound when you try.

1 Answer


Have you checked for voltage and ground? Make sure the lock out switch isn't engaged. Because you open and shut the driver door, so much, sometimes those wires in the wiring harness, hinge side, break. Something to check. You can see the fuses at top of diagram, check those. You can use a test light to check voltage and ground at wire harness on hinge side of driver door. Yellow wire with light green tracer is voltage to master switch. The bottom black wire, right, in the diagram, is ground. You can use test light to check that also. To check ground, one end of test lite touches battery voltage, the other end touches black wire terminal, if lamp comes on, you got ground good enough for lamp. I suppose the master switch could have a problem, won't know w/o testing. Don't replace anything unless your testing points in that direction.

1 people found this helpful.

Your Answer:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
  • #2
  • #3
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Lincoln Town Car
10 listings starting at $8,900
Used Chevrolet Impala
16 Great Deals out of 944 listings starting at $2,495
Used Chevrolet Tahoe
17 Great Deals out of 721 listings starting at $6,871
Used Dodge Charger
36 Great Deals out of 776 listings starting at $2,995
Used Ford F-150
196 Great Deals out of 12,227 listings starting at $521
Used Ford Mustang
26 Great Deals out of 1,826 listings starting at $1,048
Used Chrysler 300
33 Great Deals out of 753 listings starting at $2,500
Used Chevrolet Silverado 1500
106 Great Deals out of 10,264 listings starting at $3,655
Used Honda Accord
54 Great Deals out of 1,863 listings starting at $2,970
Used Cadillac DTS
14 listings starting at $12,499
Used Buick LaCrosse
5 Great Deals out of 196 listings starting at $4,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.