Passenger windows NOT rolling up
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Passenger windows NOT rolling up
I have a 2004 F150 Lariat. All of my passenger window roll down by can NOT be rolled back up by the passengers. I can roll them back up on the driver's window controls. I don't want to start digging into my truck's electrical system without some guadance or suggestions. Help! Thanksl
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Joined: Jun 2002
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From: Under the flightpath of old ORD 22R
I am going to take a SWAG that the driver's side window switch is having an issue providing ground to the other switches, in that one direction.
I assume it is a SuerpCrew considering it is all, ( not the ) passenger windows.
Bit of back ground : the Driver's side switch power window switch supplies power to the other switches via the lock switch.
With this in the unlock position, the other switches now have power.
To make the window move, the motor also needs ground, which is provided from the driver's switch to all other switches.
Think of it as the switches are in series, driver's switch then the passenger switch then motor.
All the switches in the driver side, have a neutral state of both contacts to ground. The switches in series, that same ground on both circuits to the motor are via the passenger switch in the neutral position ( neutral means not pressing it one direction or the other, just to clarify ).
If you had an issue with 1 window doing this, I would think broken wire, but with all of them, it seems like driver's side switch is having an issue with the neutral state.
Best to check this by removing the switch from the passenger front door, and check for ground ( use a meter set to ohm or continuity ) to the Tan w/ light blue stripe wire & to the White w/ Yellow stripe wire.
Both should show < 10 ohms to ground. If not, the driver's switch is the issue.
Worth checking for ground 1st, unless another member has had this happen, and can diagnose it straight away.
How to on removing the switch panel, in case you have not been in there yet
https://www.f150online.com/forums/ar...-04-08-my.html
I assume it is a SuerpCrew considering it is all, ( not the ) passenger windows.
Bit of back ground : the Driver's side switch power window switch supplies power to the other switches via the lock switch.
With this in the unlock position, the other switches now have power.
To make the window move, the motor also needs ground, which is provided from the driver's switch to all other switches.
Think of it as the switches are in series, driver's switch then the passenger switch then motor.
All the switches in the driver side, have a neutral state of both contacts to ground. The switches in series, that same ground on both circuits to the motor are via the passenger switch in the neutral position ( neutral means not pressing it one direction or the other, just to clarify ).
If you had an issue with 1 window doing this, I would think broken wire, but with all of them, it seems like driver's side switch is having an issue with the neutral state.
Best to check this by removing the switch from the passenger front door, and check for ground ( use a meter set to ohm or continuity ) to the Tan w/ light blue stripe wire & to the White w/ Yellow stripe wire.
Both should show < 10 ohms to ground. If not, the driver's switch is the issue.
Worth checking for ground 1st, unless another member has had this happen, and can diagnose it straight away.
How to on removing the switch panel, in case you have not been in there yet
https://www.f150online.com/forums/ar...-04-08-my.html