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A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Mercury
Satisfied Customers: 6599
Experience:  ASE Master Certified. ASE Gasoline Engine Performance Certified,Ford Senior Master Technician
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I have problem in my car grand marquis 2007 Code p1484 And

Customer Question

Hi i have problem in my car grand marquis 2007
Code p1484
And code u2023
Thankyou
Submitted: 1 year ago.
Category: Mercury
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Tim Mohr replied 1 year ago.

Hi, my name is ***** ***** sure it wad a P1484, there is no P1484, but there is a B1484

Customer: replied 1 year ago.
I found errors code p1484 and code u2023in my car mercury grand marquis 2007
I hope you fault diagnosis with a description of his place
Expert:  Tim Mohr replied 1 year ago.

That is a problem, since there is no code P1484, can you check them again?

Customer: replied 1 year ago.
i am sure p1484 this car grand marquis 2007
Expert:  Tim Mohr replied 1 year ago.

How are retrieving the codes?

Customer: replied 1 year ago.
Abs cntrol. Code p1484
Expert:  Tim Mohr replied 1 year ago.

that is a B1484 not a P1484

Customer: replied 1 year ago.
Dear sir iam sure p1484
Wibsite coming. Brake pedal input open circuit
Expert:  Tim Mohr replied 1 year ago.

ok, there is no P1484, but the definition is for a B1484, it must be a problem with your code reader, but the B1484 isn usually caused by a bad brake pedal switch, and this will also set the U2023, do the rear brake lights come on when pressing the pedal?

Customer: replied 1 year ago.
Vehicle system : ENGINE
Code p1484
Open power Ground to variation load control mod
Expert:  Tim Mohr replied 1 year ago.

what are you using to retrieve the code?

Customer: replied 1 year ago.
Ok thankyou but bad brake pedal switch
Where is his place exactly
Expert:  Tim Mohr replied 1 year ago.

it is located on the brake pedal, did you check the rear brake lights and see if they come on when pushing the pedal?

Customer: replied 1 year ago.
brake lights come on when i pressing the pedal
And the switch pedal i replacemint new one
Customer: replied 1 year ago.
For your information we have replace rear bad brake We did not remove the existing air brake oil Do I have to remove brake Modded
Expert:  A. Penland replied 1 year ago.

The best way to check the wiring pins, is to find a spare wiring pin, flat style pin, and insert it into each pin in the connectors with it unplugged and check for a drag on the wire when pulling it out. You can use a small pick to slightly close the female pin to grab the male flat pin in the fuse box.