I recently repaired my cruise control. The problem was with the amplifier module located above the glove box.

1. open glove box, unclip and lower all the way for access.
2. unplug module, remove screws, pull out module.
3. pop it open and remove the circuit board.
4. resolder all connections with rosin core solder.
5. clean with isopropyl alcohol or flux remover until all the flux is removed.
6. replace module and plug it in.

YMMV
Good luck with yours.
Chris

I took mine apart and looked at it today, all of the solder points looked good to me, I couldn’t “see” anything wrong with it.
When my cruise went out it start by kicking off a fem minutes into my daily drive, then it got intermittent where it might work one day then not work for weeks or months then work again. Now it hasn’t worked but once in the last 6 months.
I have followed the directions in the factory service manual and tested the resistance on the wires that go to the switches and tested the clutch and brake switch, the next step in the manual was to change the amplifier box with a known good one, however, they are expensive to just swap out.

opened up the door glove and so has the air bag where can I find the cruise control module and serial number which it ranger stx 97
help me

I finally got cruise control working again. Long story short I swapped out the little green box that behind the dash above the glove box. Its some sort of amplifier board. It was real easy to change, 2 plugs and 4 screws and I got one for $10 from a guy that was parting out his old ranger.
Now maybe I can start being happy to drive little red again after years of aggravation!
I use cruise all the time and can’t stand not having it.

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****My Pics****

1994 Ford Ranger 4.0L 5spd ext cab, stock
1999 Ford F-250SD Powerstroke 4x4, no where near stock
1969 Ford F-100 360, stock
1999 Jeep Grand Cherokee, stock
2000 John Deere 4700 4x4
1956 John Deere 60
1951 John Deere MT
1948 John Deere A
1947 John Deere A
Etc.

“Government, even in its best state, is but a necessary evil; in its worst state, an intolerable one”

The Government cannot give anyone anything that they didn’t first forcibly take from someone else!

FYI, Rock auto parts sells a new reman cruise control module for like $65, the used one I bought for my truck worked for about a month then it died too, the auto parts stores wanted like $300 for the exact same one Rock sells for like $65.

__________________
****My Pics****

1994 Ford Ranger 4.0L 5spd ext cab, stock
1999 Ford F-250SD Powerstroke 4x4, no where near stock
1969 Ford F-100 360, stock
1999 Jeep Grand Cherokee, stock
2000 John Deere 4700 4x4
1956 John Deere 60
1951 John Deere MT
1948 John Deere A
1947 John Deere A
Etc.

“Government, even in its best state, is but a necessary evil; in its worst state, an intolerable one”

The Government cannot give anyone anything that they didn’t first forcibly take from someone else!

Following FRTruckNut's directions above I looked for a crack in the board circuitry. I didn't see anything but I took it to my friend who is a retired electronic technician. He used a jeweler's magnifying glass and found a tiny crack. He resoldered it there and it is now working fine. So use the highest magnification you can to inspect the integrity of the circuits on the board.

Great thread, I will try this all on my 94 4.0

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David W.
Lexington,Ky
1994 Ranger Ext cab 2wd Cayman