Serious Explorations Ford Explorer and Ranger Message Board
#1 Resource for Ford Explorer and Ranger Owners - By Enthusiasts, for Enthusiasts.


Ford Explorer Generation Guide

EF Swag Store 2015 Ford Explorer Forums Elite Membership Chat Room My Posts Reviews Explorer Photo Gallery
Go Back   Ford Explorer and Ranger Forums "Serious Explorations" > Ford Explorer Ranger Repair - Troubleshooting - Modifications & Detailing Forums > 1991 - 1994 Explorer Ranger Navajo 1st Generation > Stock 1991 - 1994 Explorers

Notices

Stock 1991 - 1994 Explorers For questions related to the base Ford Explorer. Problem solving, maintenance, TSB, service bulletins, owner reviews, specifications. No modification questions.

Checking the Electronic Shift Control Module

Reply
 
Thread Tools
Old 01-21-2010, 01:58 PM   #1
KarmicFlea
Danbury, CT
1993 XLT
 
Join Date: Sep 2006
Posts: 19

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Checking the Electronic Shift Control Module

Hello Enthusiasts!

I've been having trouble with the 4x4 in my 93 Explorer. So I took it to my cousins shop here in the northeast and he did some testing and apparently there is no signal getting past the ESCM. So of course I pulled it and have one coming from a salvage place close to me. BTW the dealer wanted a whopping $805.00 for the damn thing. I'm getting it from salvage for $45.00.

I was wondering though, now that I have it out is there any way to test the darn thing? There is a red LED light on it and some sort of, what looks like, a reset button. Yes I tried the switch and nothing seemed to happen other than the light lit up and then went out. Any ideas?
KarmicFlea is offline   Reply With Quote
( Join the Elite Explorers )

For only $20 per year you can become an Elite Explorer member. Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose and fix problems yourself, and learn which modifications really work without having to experiment on your own. Elite Explorer members can change the forum "styles" to eliminate most ads, including blue underlined links, and no ads on photos. Other benefits include the ability to store 1000 Private Messages, upload photo attachments directly to your posts and to our Photo Gallery and more. Join the Elite Explorers today.


Old 01-21-2010, 03:19 PM   #2
maroon93limited
Taber, Alberta
93 Limited
 
Join Date: Oct 2008
Posts: 95

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Unplug the two connectors from it, turn the key to the on position and hit the reset button. If it blinks four or five times, it "thinks" it's ok.




__________________
Some people are like a Slinky, not really good for anything but they bring a smile to your face when pushed down the stairs.
maroon93limited is offline   Reply With Quote
Old 01-22-2010, 10:32 AM   #3
KarmicFlea
Danbury, CT
1993 XLT
 
Join Date: Sep 2006
Posts: 19

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Thanks for the info maroon93limited. I will try that on my next day off. I just got a gig at a national parts store chain and they have been working me frantically. I'll post back the results after I can perform the test.
KarmicFlea is offline   Reply With Quote
Old 01-22-2010, 10:46 AM   #4
Turdle
Moderator Masterbaker
Humboldt, Kansas
 
Turdle's Avatar
2000 Mounty
 
Join Date: Jun 2003
Posts: 25,285

Vehicle Specs

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 271 Post(s)
Just checking to be sure you saw this-

http://www.explorerforum.com/forums/...t+motor+sensor

The shift motor stopper is usually the problem.
Turdle is online now   Reply With Quote
Old 01-23-2010, 05:32 PM   #5
KarmicFlea
Danbury, CT
1993 XLT
 
Join Date: Sep 2006
Posts: 19

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Yes I am aware of the motor and it's teardown procedures, and if it still doesn't workafter I replace the module, I'll pull the motor and do the the teardown then. But since there isn't any power passing through the electronic shift control module I'm going to start by replacing it. Unfortunately I won't be able to pick up the salvage part I'm getting until Monday. I'll post how it goes here. Thanks for participating.

KF
KarmicFlea is offline   Reply With Quote
Old 01-28-2010, 01:24 AM   #6
anmag
cedar city utah
1992 xlt
 
Join Date: Nov 2005
Posts: 12

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm also having problems with this. I haven't used the 4wheel in awhile--broken--and just installed manual hubs. Now the module is out. No lights with the test, has good ground but, I'm not sure how to find the power to it. Could it be a fuse as well? And if so what one would it be? I haven't found any fuse labeled "shift module" or any sort of "4X4" anywhere.
anmag is offline   Reply With Quote
Old 01-28-2010, 01:25 PM   #7
KarmicFlea
Danbury, CT
1993 XLT
 
Join Date: Sep 2006
Posts: 19

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Manual Hubs

Hey there Anmag. Question for you. I don't see much reason to be using the Electronic Shift Control Module if you installed manual locking hubs. Manual as in you have to get out of the vehicle and turn the "dial" on the hub to engage the 4wheel drive. I'm no expert but it just seems to me that trying to use an automatic system with a manual system is just defeating the purpose. Does anyone know if you still need the module with a manual hub system?

Back to my issue. I got the replacement module last night and just installed it after the brief snowstorm we had here in CT. I am now looking for where the problem could be because after connecting it and attempting to "pop" into 4 wheel high I got no response from my shift motor. I guess I need to take a look at my shift motor now. Looks like that teardown and rebuild process that Turdle posted the link to in this thread will come in handy after all. I really thought that this would fix it. Bummer. If anyone has any ideas please send them my way. Other than that just wish me luck. I'll let you all know how it goes.

- KF
KarmicFlea is offline   Reply With Quote
Old 01-28-2010, 01:33 PM   #8
Maniak
Moderator-Stock 91-94
Vail, Arizona
 
Maniak's Avatar
1992 XLT 4x4
 
Join Date: Feb 1999
Posts: 11,566

Vehicle Specs

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 105 Post(s)
Quote:
Originally Posted by KarmicFlea View Post
Hey there Anmag. Question for you. I don't see much reason to be using the Electronic Shift Control Module if you installed manual locking hubs. Manual as in you have to get out of the vehicle and turn the "dial" on the hub to engage the 4wheel drive. I'm no expert but it just seems to me that trying to use an automatic system with a manual system is just defeating the purpose. Does anyone know if you still need the module with a manual hub system?
Different animals. The shift control module is for the transfer case. It controls power on/off to the front drive shaft (and gear ratio in the transfer case).

Having manaul hubs has some good advantages..
they are stronger than the automatic hubs
cheaper than the auto hubs (normally)
Allow you to run in 2wd low when you need more torque, but don't need the front wheels pulling.

I just lock my front hubs if there is a chance I might need 4x4. Then, when I need 4x4 I just press the button and I have it. I've forgotten to unlock my hubs for days before and other than slightly lower mpg, I noticed no difference, even at 70mph freeway speeds.

~Mark




__________________
Click HERE to see our Explorer Specs
Maniak is online now   Reply With Quote
Old 01-28-2010, 01:35 PM   #9
Verno
Waynesboro, TN
94 XLT
 
Join Date: Oct 2008
Posts: 352

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
YES, and YES. My 94 is A4LD, translate to automatic tranny with electronic transfer case and Manual Hubs. All the electronic t/c does is electronically shift instead of a manual shift. With manual hubs there is no worry about did it engage...
Verno is offline   Reply With Quote
Old 02-09-2010, 04:45 PM   #10
sunflower84
Ohio
93 xlt
 
Join Date: Feb 2010
Posts: 3

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i put my 93 into 4 high manually after motor went bad now the transmission wont shift past second gear. any ideas would be helpfull
sunflower84 is offline   Reply With Quote
Old 02-09-2010, 04:55 PM   #11
Maniak
Moderator-Stock 91-94
Vail, Arizona
 
Maniak's Avatar
1992 XLT 4x4
 
Join Date: Feb 1999
Posts: 11,566

Vehicle Specs

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 105 Post(s)
Quote:
Originally Posted by sunflower84 View Post
i put my 93 into 4 high manually after motor went bad now the transmission wont shift past second gear. any ideas would be helpfull
I would say they are most likely unrealted.

1-2-3 shifts on the tranamission are purely hydraulic on the a4ld. Only the shift from 3-4 and locking of the torque converter are controlled by the computer (the computer will inhibit the transmission from doing the shift).

Soo, if it won't shift into 3, its not an issue with the transfer case causing it.

~Mark




__________________
Click HERE to see our Explorer Specs
Maniak is online now   Reply With Quote
Old 02-14-2010, 11:31 PM   #12
codestar7
The Forests Of Oregon
1992 / 1998 explorer
 
Join Date: Sep 2009
Posts: 17

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Crazy Transfer case

Hey guys, I've been lurking around here for years. I have 2 explorers and they are for the most part great!...Craziest thing though. I contacted a guy on Sunday that had a nice bike he wanted to trade for a car or truck and I'm thinking , hey I got two. So I go clean out the 1992 XLT it a 5 speed I've driven it for 6 years with no big problems. So any way I hop in Starts right up and I put it in First, it's a five speed. And no go at all I'm just burning clutch, WTF. Never seen anything like it. At first I think the rear brakes have siezed but nope they let loos fine. Gotta be something in the transfer case or the shift lever or something, it's just locked solid, like theres a huge log in front of the front and back tires and they don't budge an inch....any Ideas?
codestar7 is offline   Reply With Quote
Old 02-14-2010, 11:33 PM   #13
codestar7
The Forests Of Oregon
1992 / 1998 explorer
 
Join Date: Sep 2009
Posts: 17

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Crazy Transfer case

Posted twice, wouldn't let me delete...

Last edited by codestar7; 02-14-2010 at 11:36 PM. Reason: Posted twice
codestar7 is offline   Reply With Quote
Old 02-15-2010, 09:51 AM   #14
Tony H
New York, Wading River (that's on Long Island)
'91 Eddie Bauer
 
Join Date: Sep 2003
Posts: 1,591

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by KarmicFlea View Post
Hey there Anmag. Question for you. I don't see much reason to be using the Electronic Shift Control Module if you installed manual locking hubs. Manual as in you have to get out of the vehicle and turn the "dial" on the hub to engage the 4wheel drive. I'm no expert but it just seems to me that trying to use an automatic system with a manual system is just defeating the purpose. Does anyone know if you still need the module with a manual hub system?

Back to my issue. I got the replacement module last night and just installed it after the brief snowstorm we had here in CT. I am now looking for where the problem could be because after connecting it and attempting to "pop" into 4 wheel high I got no response from my shift motor. I guess I need to take a look at my shift motor now. Looks like that teardown and rebuild process that Turdle posted the link to in this thread will come in handy after all. I really thought that this would fix it. Bummer. If anyone has any ideas please send them my way. Other than that just wish me luck. I'll let you all know how it goes.

- KF
The Electronic shift module rotates the Transfer Case shift motor to Lock in the transfer case.
The transfer case then turns the front Driveshaft.
The front Driveshaft rotates the Front axles which enganges the Auto Hubs.
With Manual Hubs, the shift motor still needs to engage the transfer case. the only thing that doesn't lock up and turn is the hubs.




__________________
Hoffm_t@tdipower.com
1975 CJ5 with fiberglass body and 350/345Hp chevy power:bought it in '79
1985 chevy stepside pickup, 300K on the clock: Original Owner
1989 Volvo 240 300K on the clock: Original Owner
the 1991 X is my newbie with 331K on the clock: bought OCT.'03 with 183K
http://home.lyse.net/brox/TonyPage4.html
Tony H is offline   Reply With Quote
Old 02-15-2010, 11:37 AM   #15
bigred2106
Ashland, Ohio
1994 Limited
 
Join Date: Feb 2010
Posts: 17

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Might be dumb question

But this is all new to me! By the way where is that reset/test button? I didn't see anything on the module that looked like a test button. Also how do you get the 4x4 switches out of the dash to check them? I have 4H but no 4L or light for that, and I did the rebuild job I saw on here to the step motor but still just have 4H, any ideas?
Thanks, Al
bigred2106 is offline   Reply With Quote
Old 04-11-2010, 07:01 PM   #16
ram2500
virginia
1996 xlt 4x4
 
Join Date: May 2007
Posts: 8

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I also have 4hi but I dont have 4low and the 4low light will not come on. I saw several post but none have been of much help, are there any wiring diagrams that I can get so I can trace the problem?
ram2500 is offline   Reply With Quote
Old 04-12-2010, 06:19 AM   #17
bigred2106
Ashland, Ohio
1994 Limited
 
Join Date: Feb 2010
Posts: 17

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi, All I ended up doing was to reset the module, found the white button on it at the bottom and now have 4L. Or you can just unhook the battery wait a little and hook it back up and that will reset it also.
Al
bigred2106 is offline   Reply With Quote
Reply



Suggest this thread to friends:



Join the "Elite Explorers" Today!



Search Explorer Forum


Top of Page

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 06:26 PM.



US Flag
We Support Our Troops!

Explore the site!


Copyright 2014 - 1996 Rick Horwitz Photography



Ford Motor Company is not involved in the management of this site in any way.



All tips on this site are for use at your own risk and discretion.

Modifying the suspension on any vehicle will cause changes to its handling characteristics.



Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.