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Dan
Dan, ASE Certified Technician
Category: Ford
Satisfied Customers: 1638
Experience:  Auto Technician
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Door ajar light on but code reader says all doors r closed,

Customer Question

Door ajar light on but code reader says all doors r closed
JA: Have you checked the fuses? Have you checked the door switches?
Customer: Haven't checked fuses but visually inspected all sensors and they look fine
JA: What is the model/year of your Ford?
Customer: 04 expedition
JA: Are you fixing your Expedition yourself? What have you tried so far?
Customer: Yes. Tore all doors apart and checked switches. Had mechanic put on computer. All doors say closed but door ajar light stays on
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 6 months ago.
Category: Ford
Expert:  Dan replied 6 months ago.

Hello my name is***** am an ASE Master Technician and I am glad to help you with your question.

Customer: replied 6 months ago.
Ok. Do u have an answer?
Expert:  Dan replied 6 months ago.

Here is a diagram of how the system works. This could be a problem with the vehicle security module or VSM.

Expert:  Dan replied 6 months ago.

Please reply to this if you need more help and we can continue this conversation at no extra charge. This does not have to be my only answer. If you are satisfied with my service, please rate at the top of the screen. Rating does not close out your question. Remember, sometimes it is difficult to completely diagnose your vehicle without being there, but I will try to give you the best answer I can. Hoping to be giving you 5 star service.

Thanks

Customer: replied 6 months ago.
I already have that diagram. How do i check the van?
Customer: replied 6 months ago.
Meant vsm
Expert:  Dan replied 6 months ago.

With a scan tool that can access this module, there may be codes in the VSM that is the first step.

Expert:  Dan replied 6 months ago.

Also check the liftgate ajar switch and the liftgate glass ajar switch.

Customer: replied 6 months ago.
Already did that. Checked every section...no codes
Customer: replied 6 months ago.
Checked glass and lift gate. Again, computer says all doors r closed even when I open them
Customer: replied 6 months ago.
Couldn't find the lift gate sensor. Think is in latch. Went to mechanic up street to ask him where it was and he hooked up to the computer and found all doors say closed even when open and no codes. After that I have to make appointment
Expert:  Dan replied 6 months ago.

Have you checked for voltage at the door switches? Not all scan tools can access the VSM you need a dealer quality scan tool for this.

Customer: replied 6 months ago.
No. Haven't checked for voltage at switches. Assuming is there what's nxt? How? Just volt meter?
Customer: replied 6 months ago.
His meter did access vsm
Expert:  Dan replied 6 months ago.

Yes use a volt meter.

Customer: replied 6 months ago.
Can't do right now. Assuming that there is voltage there what would be nxt
Expert:  Dan replied 6 months ago.

If there is voltage, check the switches with meter set to read ohms. If switches are good, then check the grounds.

Customer: replied 6 months ago.
I don't know where the ground would be
Expert:  Dan replied 6 months ago.

The grounds are labeled in the wiring diagram I sent you. At the bottom right of the diagram.

Customer: replied 6 months ago.
Ok. Guess I'll go from there
Expert:  Dan replied 6 months ago.

Ok let me know if you have any more questions. thanks.

Customer: replied 6 months ago.
Thanks
Expert:  Dan replied 6 months ago.

Your welcome.

Expert:  Dan replied 6 months ago.

Hello again Dan here,

I am contacting you because the post has not been closed or rated.

This question is coming up on 7 days which means it will time out and close.

You have already paid to get this question answered, but you have not rated.

Let me help some more. Is there anything else I can help you with?

If I did not give you 5 star service, please let me know what I missed.

Thanks