Keypad and Remote Door Open Problem
Thread Starter
|
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
Keypad and Remote Door Open Problem
I replaced the original battery on my 2002 Mecury Mountaineer. Since then my keyless Entry Keypad doesn't work. I tried to reprogram using the Factory Default Code, but that doesn't work either. The Keypad will lock the doors, but that doesn't require a code. I believe the Factory Code is the same one as I used when the vehicle was new.
Also I can only program one Remote Door Lock. I can program the first one, but if I try to program another, neither will work. I have to disconnect the battery and start all over with programming.
Also I can only program one Remote Door Lock. I can program the first one, but if I try to program another, neither will work. I have to disconnect the battery and start all over with programming.
Tuned
Joined: Feb 2007
Posts: 288
Likes: 1
From: SW Florida
Maybe the keypad or Security Module got fubar when battery changed, or wiring issue between the two just coincided with battery change. I would look at the wiring since it doesn't cost anything. Most likely place to look for damage is in the rubber boot between the driver's door and the body. You really have to look closely at the harness in there because there is a bunch of wires in it.
If you don't see anything obvious come back and I'll look in my 2002/2003 wiring diagrams for connector pinouts for you.
If you don't see anything obvious come back and I'll look in my 2002/2003 wiring diagrams for connector pinouts for you.
Thread Starter
|
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
Maybe the keypad or Security Module got fubar when battery changed, or wiring issue between the two just coincided with battery change. I would look at the wiring since it doesn't cost anything. Most likely place to look for damage is in the rubber boot between the driver's door and the body. You really have to look closely at the harness in there because there is a bunch of wires in it.
If you don't see anything obvious come back and I'll look in my 2002/2003 wiring diagrams for connector pinouts for you.
If you don't see anything obvious come back and I'll look in my 2002/2003 wiring diagrams for connector pinouts for you.
Where is the Security Module?
How can I reset it?
Tuned
Joined: Feb 2007
Posts: 288
Likes: 1
From: SW Florida
The Security Module is located on the lower part of the passenger side 'C' pillar. You can pull the upper trim panel off and let it slide down the shoulder strap then pry the lower trim panel out enough to see the module. It will have the 5 digit factory security code printed on the label. I don't think there is a reset on it though.
Thread Starter
|
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
I checked the wiring to the door, it looks OK.
When I push any button on the Keypad, the light under the Side mirrors lights and goes off after about 30 seconds. I tried each key, and all are the same. I think that the Keypad is OK, but the Default Code on the card is wrong.
I bought this vehicle new 7 years ago, and programmed it with a User's code. I must have had the right Default Code at that time.
I'll try to find the Security Module, and look at the code on the label
When I push any button on the Keypad, the light under the Side mirrors lights and goes off after about 30 seconds. I tried each key, and all are the same. I think that the Keypad is OK, but the Default Code on the card is wrong.
I bought this vehicle new 7 years ago, and programmed it with a User's code. I must have had the right Default Code at that time.
I'll try to find the Security Module, and look at the code on the label
Thread Starter
|
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
I found the Security Module, and the code is the same one that I have been using. it seems like the code got jumbled, or the Module has a problem.
I have an OBDII reader, and can reset codes. I don't think that I can get to the Security Module.
I have an OBDII reader, and can reset codes. I don't think that I can get to the Security Module.
Trending Topics
Thread Starter
|
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
The dealer wants $149.00 to run the diagnostic program. There is no gaurantee that the problem can be fixed with a reprogram.
I can buy a used Body Computer from a similar wrecked vehicle for $50.00.
My question is:
Can I swap the BCU with another unit without confusing the other Computers?
I ran an OBDII scan, and reset one code for low EGR differential pressure. I replaced that sensor once already. Anyone familiar with that problem?
I can buy a used Body Computer from a similar wrecked vehicle for $50.00.
My question is:
Can I swap the BCU with another unit without confusing the other Computers?
I ran an OBDII scan, and reset one code for low EGR differential pressure. I replaced that sensor once already. Anyone familiar with that problem?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
New User
Joined: Sep 2009
Posts: 1
Likes: 0
Keypad Problem
Did you ever find out how to fix this? I have a 2002 Explorer and I'm having the same problem. I replaced the battery and now the keypad won't open the door. I never programmed my own code so I've always just used the factory code. Now that doesn't work. I can lock the truck with the 0/9,7/8 buttons but when I enter the code to unlock nothing happens. My key fobs work too.
I also had the EGR sensor problem. I actually had a letter from Ford on that where they extended the warranty for that part by 2 years, 24K miles. But I was beyond that when mine failed. It was pretty easy to replace on the Explorer.
I also had the EGR sensor problem. I actually had a letter from Ford on that where they extended the warranty for that part by 2 years, 24K miles. But I was beyond that when mine failed. It was pretty easy to replace on the Explorer.
Thread Starter
|
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
Did you ever find out how to fix this? I have a 2002 Explorer and I'm having the same problem. I replaced the battery and now the keypad won't open the door. I never programmed my own code so I've always just used the factory code. Now that doesn't work. I can lock the truck with the 0/9,7/8 buttons but when I enter the code to unlock nothing happens. My key fobs work too.
I also had the EGR sensor problem. I actually had a letter from Ford on that where they extended the warranty for that part by 2 years, 24K miles. But I was beyond that when mine failed. It was pretty easy to replace on the Explorer.
I also had the EGR sensor problem. I actually had a letter from Ford on that where they extended the warranty for that part by 2 years, 24K miles. But I was beyond that when mine failed. It was pretty easy to replace on the Explorer.
I sold the vehicle.
Thread
Thread Starter
Forum
Replies
Last Post
tracyclifton
Explorer, Sport Trac, Mountaineer & Aviator
3
Mar 28, 2016 08:22 AM
