How to program a replacement driver door module?

CFRUSH1

MEMBER
2003 LINCOLN TOWN CAR
4.6L
V8
2WD
AUTOMATIC
78,000 MILES

My door locks and keyless keypad won't lock or unlock doors. If I get a new DDM will I need to program it and how is it done?

Tuesday, November 3rd, 2020 AT 12:32 PM

5 Replies

DANNY L

MECHANIC
5,648 POSTS

Hello, I'm Danny.

No, the new module will not need to be programmed. Simply plug and play. The module is located in the top front of driver door. If you have key fobs those will probably need to be reprogrammed. Here is the tutorial for reprogramming the key fobs:

https://www.2carpros.com/articles/how-to-re-program-a-key-remote-fob

Hope this helps and thanks for using 2CarPros.

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Tuesday, November 3rd, 2020 AT 1:53 PM

CFRUSH1

MEMBER
26 POSTS

Part # 3W1t-13C791-AJ. I have found similar parts but not the exact same part number. Will other part number's work and where is the best place to find one?
Thank you

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Wednesday, November 4th, 2020 AT 2:37 PM

DANNY L

MECHANIC
5,648 POSTS

Hello again.

Have you taken the door panel off to verify the part number on the module? Here is a tutorial showing how to do so:

https://www.2carpros.com/articles/door-panel-removal

I've attached picture steps below for your car how to remove the panel. The part number for the module looks real close and only off by 1 letter which is 3W1T-13C791-AH. I've attached a picture of that below as well. Keep us updated. Hope this helps and thanks again for using 2CarPros.

Danny-

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Wednesday, November 4th, 2020 AT 3:59 PM

CFRUSH1

MEMBER
26 POSTS

Hello Danny,

I have just used Forscan to check for DTC's there are no errors so before I buy a replacement it appears there is an open circuit going to the locks. Sometime they all function properly then the circuit quits again. Do you have the wiring diagram that controls the circuit? Or any other suggestions for troubleshooting would be helpful.

Thanks,
Charlie

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Thursday, November 5th, 2020 AT 11:01 AM

DANNY L

MECHANIC
5,648 POSTS

Hello again.

Okay, here is the wiring diagram you requested. I've cut it in half so you can view larger so it overlaps. Keep us updated as to what you find and we'll go from there. Hope this helps and thanks again for using 2CarPros.

Danny-

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