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Drivers side window and locks not working

Tiny
LFLORESTX
  • MEMBER
  • 2004 LINCOLN NAVIGATOR
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 75,711 MILES

All others work.
Rear Hatch opens okay.
Rear Glass opens okay.
Power locks will not work.
I hear the clicking on the VSM when the buttons are pressed.
Key bob unlock and lock not working however if I press the lock button a few times the horn will sound. Wont lock just honk the horn like its locked.
I checked the fuses and relays that pertain to the devices.
I checked the voltage from the drivers window switch I get 14v and -14 when I press the button down and up. So I thought the motor was bad. I replaced it and nothing same issue.
I checked the grounds behind the kick plate by the fuse box and they look good like new.
no water leaks/damage of any sort.
please help
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Tuesday, November 19th, 2019 AT 4:08 PM

27 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,289 POSTS
Hello,

It sounds like the vehicle security module is out. to be sure here is a guide and the door lock wiring diagrams so you can test the connection to confirm the issue, also I have included the VSC location as well.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Wednesday, November 20th, 2019 AT 8:22 PM
Tiny
LFLORESTX
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  • 17 POSTS
I tested the drivers power lock switch using a jumper on the lock and unlock wires. I could hear the VSM clicking. All windows except the drivers function correctly. Crazy part is that every now and then the drivers door will unlock from the key fob or the master entry buttons. Most of the time it will not function.
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Thursday, November 21st, 2019 AT 2:14 AM
Tiny
KEN L
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  • 48,289 POSTS
Yep, sounds like the VSM is out. I would try a new one to see what happens. You can try a CAN scan as well. here is a video to help confirm the failure. you can get a CAN scanner from amazon for about $40.00.

https://youtu.be/InIlnsjOVFA

Please run down this guide and report back.
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Thursday, November 21st, 2019 AT 12:50 PM
Tiny
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  • 17 POSTS
Where is the VSM located and would you happen to have a part number?
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Thursday, November 21st, 2019 AT 1:27 PM
Tiny
KEN L
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  • 48,289 POSTS
The VSM is located on the passenger side under the dash. Here are the instructions on how to change it out. No part number, you will need to call the dealer for this part. Check out the diagrams (below). Please let us know what happens.
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Friday, November 22nd, 2019 AT 9:25 AM
Tiny
LFLORESTX
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  • 17 POSTS
Thanks. Okay, I found the VSM "Ford (4L1Z-15604-AD)".
Do I use a CAN scanner to download the codes from the ODBII port?
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Friday, November 22nd, 2019 AT 11:56 AM
Tiny
KEN L
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Yes, Check out the instructions that came with your scanner. Do you have a pictures of it?
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Saturday, November 23rd, 2019 AT 10:50 AM
Tiny
LFLORESTX
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I need to order one lol. Shopping around for one.
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Sunday, November 24th, 2019 AT 5:32 AM
Tiny
LFLORESTX
  • MEMBER
  • 17 POSTS
Okay, I scanned the vehicle using FORSCAN software.

At some time in the past a corrupt message was received from the PCM. Try clearing the DTC to see if this DTC re occurs. If it does then carefully check the SCP wiring and run the PCM diagnostic.

===END IC DTC U1123===

===IC DTC U1041===
Code: U1041 - Vehicle Speed Data Invalid

Module: Instrument Cluster

Diagnostic Trouble Code details

SCP invalid or missing data for function read vehicle speed

===END IC DTC U1041===

===IC DTC U1059===
Code: U1059 - Transmission Position Data Invalid

Module: Instrument Cluster

Diagnostic Trouble Code details

At some time in the past a corrupt message was received from the PCM. Try clearing the DTC to see if this DTC re occurs. If it does then carefully check the SCP wiring and run the PCM diagnostic.

===END IC DTC U1059===

===ABS DTC U1262===
Code: U1262 - SCP Data Link Fault

Module: Antilock braking system

Diagnostic Trouble Code details

SCP Data Link Fault

Operator Action

Run self test.

All CMDTCs

Fix all relevant DTCs then clear codes and retest.

Note:

DTCs that start with 'U' are faults which occur during module-to-module communication.

Modules should never be replaced based only on a 'U' code. These codes do not always indicate a problem, and can be caused by normal diagnostic functions, carried out on the vehicle.

Fix all relevant DTCs then clear codes and retest.
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Monday, November 25th, 2019 AT 3:10 PM
Tiny
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I just got the extended lic for the FORSCAN software. This will let me see into the PATS and other modules that were restricted before. I will post those scan results when I get home from work.
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Tuesday, November 26th, 2019 AT 2:47 AM
Tiny
KEN L
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Please do. We are interested to see what it is.
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Tuesday, November 26th, 2019 AT 11:50 AM
Tiny
LFLORESTX
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  • 17 POSTS
So no joy. The ELM327 adapter can't seem to read the UBP bus where the VSM among other things live. I confirmed that by scanning my 2005 Mustang and it found everything.
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Tuesday, November 26th, 2019 AT 4:03 PM
Tiny
KEN L
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  • 48,289 POSTS
So many voltages out of range. is the battery okay? Here is a guide to check the battery:

https://www.2carpros.com/articles/car-battery-load-test

Is this the only thing you see wrong with the car? Drivers side window and locks not working?

Please run down this guide and report back.
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Wednesday, November 27th, 2019 AT 12:11 PM
Tiny
LFLORESTX
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The battery was replaced about three weeks ago.
Yes, only drivers window and all door locks not working.
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Wednesday, November 27th, 2019 AT 12:43 PM
Tiny
KEN L
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There is an accessory delay relay I would check. here are the wiring diagrams for the windows so you can see how the system works and the relay location so you can test it.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please run this test and get back to us.
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Wednesday, November 27th, 2019 AT 2:37 PM
Tiny
LFLORESTX
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Will do that.
Keep in mind that I can hear the clicking sound when I press the door lock/unlock button.
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Wednesday, November 27th, 2019 AT 3:24 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Can you please shoot a quick video with your phone so we can hear the noise? That would be great. You can upload it here with your response.
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Sunday, December 1st, 2019 AT 12:26 PM
Tiny
LFLORESTX
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  • 17 POSTS
Video attached. To me it sounds like it's coming from the VSM.
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Sunday, December 1st, 2019 AT 1:45 PM
Tiny
KEN L
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Nice work on the video, can I ask which phone use used example: IPhone 6? The noise it making like it keeps cycling trying to process the protocol. I would replace the VSM to see what happens. BTW battery cables clean correct voltage getting to the VSM?
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Sunday, December 1st, 2019 AT 2:09 PM
Tiny
LFLORESTX
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Samsung Note 9.
Good question on the voltage to the VSM. Would you happen to have the wiring layout so I could test that?
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Sunday, December 1st, 2019 AT 2:17 PM

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