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Don 'Mo Lurch'
Don 'Mo Lurch', Mecury Mechanic
Category: Mercury
Satisfied Customers: 20762
Experience:  Ford Cert., Heavy Line Mech, Mobile Electronics. Sales, Installation & Repair for 30 years
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Tailgate window stopped going up or down- does nothing when

Customer Question

tailgate window stopped going up or down- does nothing when the button on the dash is pressed
JA: How long has this been an issue? How many miles are on the car?
Customer: 1990 Colony Park LS
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: like to fix it myself-- only happened yesterday have done nothing so far
JA: Anything else you think the mechanic should know?
Customer: not that I know of-- it worked fine last week when i used it
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Mercury Mechanic about your situation and then connect you two.
Submitted: 10 months ago.
Category: Mercury
Expert:  Don 'Mo Lurch' replied 10 months ago.


sorry for the delay............
Greetings...... “Hi, I’m Don (akaCustomer and I look forward to helping you!”
Does the Key in the Tailgate operate the Window?

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Customer: replied 10 months ago.
No u
Customer: replied 10 months ago.
Never has worked like that
Only use dash button for that window
Customer: replied 10 months ago.
Never mind don't have time for this
Expert:  Don 'Mo Lurch' replied 10 months ago.

thanks for the added info, but Mercury Wagon has the option
You need to check for Voltage + on "both sides" of Fuse "12"
Then check for Voltage + on the BLACK / WHITE wire at the Tail Gate
Test for Voltage + on the LIGHT BLUE / BLACK wire at the Dash Switch
IF Voltage + is good, then test for Ground - at the Dash Switch on the BLACK wires
IF the above is good, then you will need to get to the Window Motor in the Tail Gate & test for "Reversal Voltage + & Ground -" on the "2" wires at the Window Motor
Here is schematic

Click Attachment below
Let me know if you need further

Expert:  Don 'Mo Lurch' replied 10 months ago.

did you need more information?

please respond or rate my answer

thank you

Expert:  Don 'Mo Lurch' replied 10 months ago.

clearly there still must be a problem

please respond so I can help further, or at least let me know what you found
Rating answer is what was agreed on

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