International Full Size Jeep Association
Home Forums Reader's Rigs Tech Library Trail Stories FSJ-List
International Full Size Jeep Association  

Go Back   International Full Size Jeep Association > Tire Kickin' > General FSJ Tech

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 02-12-2015, 09:04 PM
acct21's Avatar
acct21 acct21 is offline
327 Rambler
 
Join Date: May 20, 2014
Location: Austin, TX
Posts: 716
The elusive Jeep/AMC cruise control tester tool

Finally found one of these weird little things -- the AM P-C-1R Cruise Control Tester 7079. It looks a lot like an Atari 2600 cartridge.

You unplug your 'yellow box,' and plug your harness into this instead. The instructions were a little tough to follow, but luckily in the 1990 Jeep Electrical Service Manual there is a section on testing the CC with this same tool. So it looks like all of the years with the 'yellow box' control module use this tester.

So using the flowchart from the 1990 Service Manual I was able to test the system in about 3 minutes! Turns out the 4 amp glass inline fuse some Machiavellian AMC engineer tucked into the power feed (and behind the instrument panel) was slow blown. Judging from the dust cake that fell out of the fuse holder that sucker hadn't been open since the first Bush presidency.





__________________
1990 Grand Wagoneer with HD towing package -- everything works! (for now...)
Reply With Quote
  #2  
Old 02-12-2015, 09:28 PM
Tripwire's Avatar
Tripwire Tripwire is offline
hey,does anyone here know how to.......
 
Join Date: Jul 30, 2000
Location: WA State
Posts: 4,402
interesting..... thanks!
__________________
Abort? Retry? Ignore? >

86 GrandWag. Howell fuel Injected 360. MSD Ignition + Dizzy. 727/229 swap BJ's 2" Lift and 31's

88 Wrangler 4.2, Howell TBI and MSD - Borla Headers w/ Cat-back + winch and 31's AND a M416 trailer (-:
Reply With Quote
  #3  
Old 02-13-2015, 05:40 AM
JeepJeepster JeepJeepster is offline
350 Buick
 
Join Date: Sep 04, 2014
Location: Kentucky
Posts: 825
Wanna loan that sucker out? Or sell it?

My cruise isnt working and I would love to test it.

Where did you find it? I wouldnt mind having one of my own. Is there a part number on it or anything?
__________________
2004 Jeep Liberty
1998 Jeep ZJ 5.9
1994 Jeep ZJ I6
1989 Jeep Grand Wagoneer 360
Reply With Quote
  #4  
Old 02-13-2015, 05:59 AM
mdcptman's Avatar
mdcptman mdcptman is offline
Jeep Therapist
 
Join Date: Apr 09, 2010
Location: New Orleans, LA.
Posts: 1,288
Quote:
Originally Posted by JeepJeepster
WANNA loan that sucker out? Or sell it?

My cruise isnt working and I would love to test it.

Where did you find it? I wouldnt mind having one of my own. Is there a part number on it or anything?


Im thinking there would be a line to use this thing! Where did u find it?

I would almost drive my jeep to Austin and pay u to test it.
__________________
Member FSJ Prissy Restoration Association
88 Grand Wagoneer
360/727/NP208/dana 3.31s
Edelbrock 2131
Holley 600
Hydroboost
Hedman headers
Dual exhaust
MSD6A, TFI
Digital Gauges
Rusty's 2" Lift
31x10.5 15LT15s
Quote From Friend's Mom:
"You don't rely on that vehicle do you?"

Last edited by mdcptman : 02-13-2015 at 06:06 AM.
Reply With Quote
  #5  
Old 02-13-2015, 09:59 AM
acct21's Avatar
acct21 acct21 is offline
327 Rambler
 
Join Date: May 20, 2014
Location: Austin, TX
Posts: 716
This thing is much more rudimentary than you might think. It is a box with six LED lights that light up in a specific order as you're performing the self-test outlined in the instructions. It really just saves you from rooting around behind the dash with an ohmmeter.

Having said that -- it worked great for me, and I'd be happy to loan it out. PM me and we'll make arrangements. I've got the original instructions and the pages from the 1990 Jeep Service Manual I'll send along with it.
__________________
1990 Grand Wagoneer with HD towing package -- everything works! (for now...)
Reply With Quote
  #6  
Old 02-13-2015, 11:01 AM
JeepJeepster JeepJeepster is offline
350 Buick
 
Join Date: Sep 04, 2014
Location: Kentucky
Posts: 825
Good deal. Ill shoot ya a PM when I bring the FSJ home this spring. Got a few weeks worth of parts built up waiting to go on.

Where did ya find it?
__________________
2004 Jeep Liberty
1998 Jeep ZJ 5.9
1994 Jeep ZJ I6
1989 Jeep Grand Wagoneer 360
Reply With Quote
  #7  
Old 02-13-2015, 07:02 PM
BugsInMyTeeth's Avatar
BugsInMyTeeth BugsInMyTeeth is offline
Noob!
 
Join Date: Mar 29, 2014
Location: Apache Junction, AZ
Posts: 8
There would probably be a decent market if you could replicate it. You could sign me up for one.
Reply With Quote
  #8  
Old 02-13-2015, 07:07 PM
Woodchomper's Avatar
Woodchomper Woodchomper is offline
350 Buick
 
Join Date: Dec 17, 2002
Location: Saint Charles, Missouri
Posts: 923
Could you open it up and take some pictures? It might not be that hard to reproduce it.
__________________
1991 GW 401 /727TF/NP229 /4" Skyjacker /EBL TBI /CS-144
1981 J10 401 /727TF/NP208 /6" Superlift /CS-144
Reply With Quote
  #9  
Old 04-27-2017, 10:35 AM
Gibber's Avatar
Gibber Gibber is offline
232 I6
 
Join Date: May 07, 2015
Location: Plano, TX
Posts: 53
I've changed out the 4a fuse under the dash....but still cant find the culprit.

Any chance you could loan out that "Cruise Control Tester"?
__________________
'89 GW
360
TF727
Dana 44's (2.73)
Baltic Blue/Sand Interior

"Passing everything but Gas Stations"
Reply With Quote
  #10  
Old 04-27-2017, 05:32 PM
acct21's Avatar
acct21 acct21 is offline
327 Rambler
 
Join Date: May 20, 2014
Location: Austin, TX
Posts: 716
Yessir. PM me an email.
__________________
1990 Grand Wagoneer with HD towing package -- everything works! (for now...)
Reply With Quote
  #11  
Old 04-27-2017, 07:46 PM
TexasJ10's Avatar
TexasJ10 TexasJ10 is offline
360 AMC
 
Join Date: Jan 03, 2002
Location: Houston, Texas
Posts: 2,770
Just saw one on eBay but it is very pricey
http://www.ebay.com/itm/DANA-ELECTRONIC-CRUISE-CONTROL-TESTER-W-HARNESS-ADAPTER-USED-IN-GOOD-CONDITION-/291890471087?hash=item43f60720af:g:IJMAAOSw8gVX6sk 7
__________________
* 1981 stepside, 360, 727, 208, almost stock daily driver.
* 1982 Laredo j-10, 360, 727, in rough shape and in the process of being rebuilt with 401, NV4500, Klune,
. NP205,d60 front, d70 rear, fender work and minimal lift. It will probably take 10 years
* 1973 jcab mounted on 1983 j20 frame. 360/t18/208 d44/d60. Almost completed
Reply With Quote
  #12  
Old 04-27-2017, 08:28 PM
acct21's Avatar
acct21 acct21 is offline
327 Rambler
 
Join Date: May 20, 2014
Location: Austin, TX
Posts: 716
Quote:
Just saw one on eBay but it is very pricey
No need to pay that, unless you just want one.

All I ask for is a deposit and $5 for Priority Mail shipping. Happy to lend it out anytime.
__________________
1990 Grand Wagoneer with HD towing package -- everything works! (for now...)
Reply With Quote
  #13  
Old 04-28-2017, 07:09 AM
Gibber's Avatar
Gibber Gibber is offline
232 I6
 
Join Date: May 07, 2015
Location: Plano, TX
Posts: 53
Quote:
Originally Posted by acct21
No need to pay that, unless you just want one.

All I ask for is a deposit and $5 for Priority Mail shipping. Happy to lend it out anytime.

PM sent
__________________
'89 GW
360
TF727
Dana 44's (2.73)
Baltic Blue/Sand Interior

"Passing everything but Gas Stations"
Reply With Quote
  #14  
Old 09-24-2019, 09:33 AM
pickledtoast pickledtoast is offline
232 I6
 
Join Date: Feb 13, 2018
Location: NJ
Posts: 29
PM set as well.
Reply With Quote
  #15  
Old 09-25-2019, 01:27 AM
FSJunkie's Avatar
FSJunkie FSJunkie is offline
The Nigel Tufnel of the FSJ world.
 
Join Date: Jan 09, 2011
Location: Not The Hot Part, Arizona
Posts: 3,971
My cruise control used to do all kinds of weird stuff. Sometimes it would hold, sometimes it wouldn't, sometimes it would totally flip out and open the throttle wide only to then slam it shut again. It was a trip. I decided to reset the adjustment screws to the recommended initial settings.

It took me four hours of driving back and forth on a quiet country road with the cruise box pulled out still attached to the wires as I turned the adjustments with a screwdriver as I drove to get it adjusted and working right.
__________________
'72 Jeep Wagoneer Custom, 360 V8

I love how arguements end as soon as Ristow comments. Ristow is right...again.
Reply With Quote
  #16  
Old 09-29-2019, 09:05 AM
Dave Jeeper Dave Jeeper is offline
230 Tornado
 
Join Date: Sep 08, 2019
Location: Denver, CO
Posts: 9
1989 cruise control causes brake light problem

I had a 1989 Jeep Cherokee XJ (downsize, not FSJ) that had the same yellow cruise control module as my current Grand Wagoneer. I had that XJ for 25 years. One problem that came up when it was about 20 years old was that the brake lights were on and wouldn't turn off. When I traced the circuit for the brake lights, I found that the brake light wiring went through the cruise control module (presumably to turn off the cruise control when hitting the brakes). I opened up the module and found a burnt section of the circuit board that was shorting out. I was able to repair it and fix the brake lights and the cruise control.


Since the cruise module was being discussed, I thought that I would mention this in case it might help someone at some point.


David
Reply With Quote
  #17  
Old 09-29-2019, 11:00 AM
JeepJeepster JeepJeepster is offline
350 Buick
 
Join Date: Sep 04, 2014
Location: Kentucky
Posts: 825
Wonder if the ‘sensors’ or whatever it uses become corroded and it freaks out when it gets erroneous readings? Maybe moving the screws around cleaned the contacts?

I know there is a sensor on the speedo cable but how does it know throttle position? Or does it just keep giving it throttle till it satisfies the speed?
__________________
2004 Jeep Liberty
1998 Jeep ZJ 5.9
1994 Jeep ZJ I6
1989 Jeep Grand Wagoneer 360
Reply With Quote
  #18  
Old 10-14-2019, 11:02 AM
pickledtoast pickledtoast is offline
232 I6
 
Join Date: Feb 13, 2018
Location: NJ
Posts: 29
I spent a little time this weekend with some wiring diagrams. I first checked the stalk switch and that ended up being faulty. Some jumper wires to duplicate the function and a test drive resulted in a functioning cruise. New stalk ordered. $21 for the stalk, $25 for the missing yellow cruise brain. Not bad.

Last edited by pickledtoast : Today at 11:42 AM.
Reply With Quote
  #19  
Old Today, 10:28 AM
dbrownLFK dbrownLFK is offline
230 Tornado
 
Join Date: Oct 09, 2019
Location: Lawrence, KS
Posts: 1
Quote:
Originally Posted by pickledtoast
I spent a little time this weekend with some wiring diagrams. I first checked the stalk switch and that ended up being faulty. Some jumper wires to duplicate the function and a test drive resulted in a functioning cruise. New stalk ordered. $25 for the stalk, $30 for the missing yellow cruise brain. Not bad.

Where/which stalk did you get? Same with the "brain." TGW wants top dollar for the stalk.
Reply With Quote
  #20  
Old Today, 11:40 AM
pickledtoast pickledtoast is offline
232 I6
 
Join Date: Feb 13, 2018
Location: NJ
Posts: 29
Quote:
Originally Posted by dbrownLFK
Where/which stalk did you get? Same with the "brain." TGW wants top dollar for the stalk.

I got this stalk from Amazon. Quality is ok, good for the price. $21

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Brain I got off one of the facebook wagoneer pages for $25 shipped with the harness. I see them on ebay often for around $35.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cruise Control Red20 General FSJ Tech 5 07-30-2011 07:39 AM
Cruise control won't accelerate or decelerate, but works otherwise iroc86 General FSJ Tech 6 07-02-2010 09:38 AM
Cruise Control Adjustment JohnIL General FSJ Tech 1 02-13-2008 11:56 AM
Cruise Control vent box etjeep Off-Road FSJ Tech 0 12-04-2006 12:37 PM
Cruise control (or throttle) sticking?! yipcanjo General FSJ Tech 4 03-31-2005 02:20 AM


All times are GMT -6. The time now is 11:09 PM.


Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
corner corner