Emissions light stays on in my Ford Focus 2004

SOURCE: Ford Focus: what does the warning light (exclamation mark) mean?

Transmission warning light :)

SOURCE: The emissions light blinking..2004 Ford Escape

There is a great number of things that can cause this **** as an oxygen sensor. or charcole canister, gas cap,or even your catalatic converter you will have to have the car hooked up to a diagnostic computer to find the problem for sure.
hope i helped you
please leave me a rating
Thank you

Marvin

• 85242 Answers
• Posted on Dec 28, 2009

SOURCE: my abs light stays on on my ford focus

when the ABS light stays on it means there is a fault present in the ABS system and the ABS has been disabled, as long as the light is on u just have regular brakes with no ABS, there are many thinbgs that can turn the light on, most common is one of the wheel speed sensors is defective, since these sensors are about $75-100 each and there are 4 of them guessing is a poor idea, so what u need to do is have the ABS systwem tested, there will be a fault code present to help narrow down the defective part or wiring.

Marvin

• 85242 Answers
• Posted on Sep 30, 2011

SOURCE: 2004 ford focus door ajar light stays on and it

Hello
The doors in this car are monitored for closure by a central module called the BCM, it senses the that the door is closed through a switch called the Door Ajar sensor, it is a tiny micro switch that is a twist in design that is attached to the door latch inside the door. There are 4 door ajar switches if you have a 4 door, one inside each door. Each door ajar switch takes about 1 hour to replace and then you are not sure you got the right one, the most common would be of course the drivers door switch. The switch is about $20.00. Your choice here is to have the Ford dealer scan electronically and see which door ajar switch is the one that is keeping the warning light on, or just start with removing the drivers door panel and replace that one 1st and hope that is it.

Here are the general instructions for removing a Focus door panel to access the door ajar switch.

A. Removing the Door Panel

1. Disconnect the negative battery cable before starting work

2. Roll the windows to approximately 1/2 open, and so the crank handle is in the Down

Position. With either the Crank Spring Removal Tool, or a flat Screwdriver, remove

the spring, located in a slot on the back of the crank.

3. Remove the cover plate for the remote-control mirror, which is held in place by 3

spring clips. Remove by gently pulling the front corner of the cover out, and then slide

the cover back.

4. Remove the door Pull-handle cover, by inserting a screwdriver into the access hole on

the bottom of the handle, and using the screwdriver as a lever, pop off the handle cover.

5. Remove the button covering a retaining screw in the interior door latch backing plate.

6. Remove the 8 Torx™ retaining screws around the perimeter of the door panel, and the

single Torx™ retaining screw in the interior door latch.

7. Remove the 2 hex bolts in the door handle.

8. Gently lift the panel upwards, to disengage the window weather-strip molding.

9. Remove the Door Latch Trim Panel, be sure to unplug the Power Lock Switch, and

remember how the wire was run.

10. Remove the interior door latch, by gently pulling out on the front corner, which is held

in by a plastic compression spring.

11. Remove the Foam Arm Rest bolster, by unclipping the 4 plastic compression clips and

the clip fasteners..

12. Remove the 4 Door Speaker screws, and disconnect the speaker.

13. Gently remove the closed cell Foam Cover from the doorframe, by pulling out, while

cutting the rubber cement around the cover. Remove all but the front edge of the cover.
This cover tears very easily, so use extreme care. The switch is located on the door latch inside the door, it just "twists" in and out. See picture below of the door ajar switch.

Marvin

• 85242 Answers
• Posted on Jan 25, 2012

SOURCE: door ajar light and buzzer stays on when I'm driving my 2006 ford focus

This problem is caused by one of the door ajar sensing switches being defective, it is a common fault in Many Ford cars and light trucks. Each door has a switch and two at the tail gate door. The switches are attached to the side of the door latch and very hard to replace, since you would most likely have to detrim at least two doors to find the bad switch the most prudent thing to do is have the dealer scan the door ajar waring system, the scan will indicate exactly which switch has the problem.