The elusive Jeep/AMC cruise control tester tool

[Dave Jeeper]

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

[JeepJeepster]

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?

[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. $21 for the stalk, $25 for the missing yellow cruise brain. Not bad.

[dbrownLFK]

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.

[pickledtoast]

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/B007TY2PNA/ref=ppx_yo_dt_b_search_asin_title?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.

[acct21]

PM set as well.

Sorry -- I don't get over to the forums as much as I used to.

We moved a couple years back, and all of my GW spare parts and goodies are still packed away in boxed, plastic tubs. I still have the GW (drive it every day), but I don't know that I could put my hands on that cc tester if I tried. Hopeful that when we warm up a little in the spring I can get all that stuff laid out and cataloged, but for now it is truly AWOL. Sorry.

[Jep]

Sorry -- I don't get over to the forums as much as I used to.

We moved a couple years back, and all of my GW spare parts and goodies are still packed away in boxed, plastic tubs. I still have the GW (drive it every day), but I don't know that I could put my hands on that cc tester if I tried. Hopeful that when we warm up a little in the spring I can get all that stuff laid out and cataloged, but for now it is truly AWOL. Sorry.

I imagine this may be a long shot but any chance you found that tester and still willing to loan it out?? Thanks!