Ford Fiesta 2014 - Drivers Side Window/Light Fault

[RosieRumble]

Hello!

Car's a 2014 Ford Fiesta. Yesterday, when I locked it, I noticed that the indicator light on the driver's side wing mirror didn't flash. Normally, it does when I lock the car or set the alarm.
Shortly after, I realised that the window controls on the driver's side were not working. However, the controls on the passenger side are functioning.

I'm assuming it could be a blown fuse or a wiring problem. I was just wondering if anyone has encountered this before?

Thank you in advance once again.

 

[Handy Andy]

Might need a little more diagnosis.

The drivers side door gets a lot of neglect and abuse from the driver.

It gets ...

• Slammed - hard!
• Leaned on.
• Pounded on.
• Gripped to death in a strangle-hold...

So it's only inevitable that the snorkel or wire loom grommet may need some attention.

So to help us help you, you need to find out what works and what doesn't.

Why? Well, the interior door panel will have to be pulled off to find the loom and where it enters into the door frame.

There are several controls on the panel - - the Window/Door Lock combination switch, the Mirror Control and the Door Handle/Grab Bar - all this stuff needs to be either have it's trim pried off, Torx screws removed or the plastic housing pried and loosened to obtain access to the pinch clips that hold the panel in it's position, as to help remove the panel to expose a series of wire looms and how they tie into a single connector of about 24 pins that this loom that routes thru the door into the car compartment connects to.

So as you investigate, try to find which controls still function - like Door lock, or Mirror Control or which windows that control panel will still operate.

If none of them (controls) then the door panel gets pulled off and see if water entry and corrosion set into the door - it may be cheaper to buy a used junkyard door to either salvage parts from to make yours work again, or to simply replace the whole door with another one to get you working again.

A saving grace on this is the year of your door most latter years will fit and that connector will also be wired correctly. The earlier versions of the older "slope nose" have a different wiring pinout and a door grab handle that is no longer even being made by Ford - you'd have to find it in a junkyard - and the handle removed from the door - looks like a backwards "Z" compared to the "lazy J" that the newer handles are.

 

[RosieRumble]

Might need a little more diagnosis.

The drivers side door gets a lot of neglect and abuse from the driver.

It gets ...

• Slammed - hard!
• Leaned on.
• Pounded on.
• Gripped to death in a strangle-hold...

So it's only inevitable that the snorkel or wire loom grommet may need some attention.

So to help us help you, you need to find out what works and what doesn't.

Why? Well, the interior door panel will have to be pulled off to find the loom and where it enters into the door frame.

There are several controls on the panel - - the Window/Door Lock combination switch, the Mirror Control and the Door Handle/Grab Bar - all this stuff needs to be either have it's trim pried off, Torx screws removed or the plastic housing pried and loosened to obtain access to the pinch clips that hold the panel in it's position, as to help remove the panel to expose a series of wire looms and how they tie into a single connector of about 24 pins that this loom that routes thru the door into the car compartment connects to.

So as you investigate, try to find which controls still function - like Door lock, or Mirror Control or which windows that control panel will still operate.

If none of them (controls) then the door panel gets pulled off and see if water entry and corrosion set into the door - it may be cheaper to buy a used junkyard door to either salvage parts from to make yours work again, or to simply replace the whole door with another one to get you working again.

A saving grace on this is the year of your door most latter years will fit and that connector will also be wired correctly. The earlier versions of the older "slope nose" have a different wiring pinout and a door grab handle that is no longer even being made by Ford - you'd have to find it in a junkyard - and the handle removed from the door - looks like a backwards "Z" compared to the "lazy J" that the newer handles are.

Thank you very much for your reply.

I went out for a drive today and drivers side windows/wing mirror controls still don't work. The car will lock (but the drivers side door doesn't lock), however, the alarm no longer appears to set.
I'll press "lock" once and there's a faint locking sound, I'll press it a second time and neither wing mirrors flash.

Feels as if slowly less things are working

My plan is to call the garage Monday morning and get it booked in, hopefully they can diagnose the problem(s).

 

[RosieRumble]

A year later and I'm including an update...

Last year, a temporary solution was found to my above issue, by disconnecting and reconnecting the wiring loom, but the problem persisted sporadically. Garage mechanics suspected a faulty connector under the dash and recommended an auto electrician's expertise. However, the issue mysteriously resolved itself once I'd got my car home and did not return for over a year.
But, to my frustration, it's reappeared almost exactly a year later, prompting me to seek advice from an auto electrician and I'll update you on the outcome soon.

 

[Handy Andy]

"Under the dash" - you can help that by removing those plastic covers on the floor side kick-panels to expose the wiring connectors - there will be several as well as being able to locate the loom to the doors "snorkel" - might be worth a look see to see if the interior carpets and floor mats along with any other stuff like the knee panel and even the Telescopic wheel and tilt adjust "Brake" lever is not interfering with anything under there.

One of the main connectors features, and you have several by that drivers side - use bolts to hold the connectors together - make sure they are not loose or missing.

To add:

These connectors in the door though, use a set of pins that may come loose as time progresses. So push those individual pins of those connectors together if you can to verify they are seated - else the other option is the side mirror and it's wiring is pinched and collapsed - having it need service...it's pinched, pulled or crushed, taking power away or being conductive to other sections of the wiring that make the door unworkable. It can't sort out the signals the BCM is receiving from it.