97 Cruise Control Resistance Values

mrblaine

mrblaine

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Does anyone know or know how to find out what the PCM wants to see? The only inkling that they are different from the later ones is a set of instructions I have for a CC kit from Mopar that shows to get a different part number for a switch kit if it is being installed in a 97. It does not list 98 as being needing but I see info that says 97 and 98 are different than other years.

I'm trying to build CC for a 97 with a 97 PCM using a later 05 steering wheel which has different switches than earlier versions with the two spoke steering wheels.
 
In the past month there was a member that was building a cruise control for his TJ; he was referencing the resistance values for the different year switches and was going to solder in resistors to adapt the switches he purchased to his year resistance value.
I will see if I can locate the post....
 
CharlesHS said:
In the past month there was a member that was building a cruise control for his TJ; he was referencing the resistance values for the different year switches and was going to solder in resistors to adapt the switches he purchased to his year resistance value.
I will see if I can locate the post....
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Thank you.
 
I have 3 versions of a 97 FSM and none have section 8H speed control. Here is what the 98 FSM states but i am not sure if its the same for 97.

Screen Shot 2021-12-03 at 8.09.12 AM.png
 
Lou said:
I have 3 versions of a 97 FSM and none have section 8H speed control. Here is what the 98 FSM states but i am not sure if its the same for 97.

View attachment 293975
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I'm still looking for pics of the 97 round charcoal canister with CC installed to see if was even optional. I've found one pic of a CC servo with an oddball bracket that is not the later 03-06 version so I think that might be it, but not sure. Have not found any showing the servo in place on the fender.
 
mrblaine said:
I'm still looking for pics of the 97 round charcoal canister with CC installed to see if was even optional. I've found one pic of a CC servo with an oddball bracket that is not the later 03-06 version so I think that might be it, but not sure. Have not found any showing the servo in place on the fender.
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Thats kind of where I am at... the wiring schematics for 97 dont list cruise control at all. I can search "cruise control" on the Pdf and a few pages do mention disconnecting the cruise control cable but besides that I cant find any info on it.
 
I also have a few OBD-II era Mopar FSMs (Ram, Dakota, etc) that all use the JTEC controller. I'm fairly certain that the early year JTECs all utilized the same cruise control signaling for resume, on/off, etc. I'll grab that for ya when I get back to the house - may be helpful...
 
Lou said:
Look for a section labeled speed control. Later years have it as 8p but 98 and 99 shows 8h.
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I don't have 8P either. Nor anything about "speed control". I do have a few index results for "speed sensor", and will check those out now.

Edit: No, those aren't proving helpful either.
 
When I did the cruise install on my 98 there was another forum I was on that had a guy trying to do the factory cruise on a 97. One of the posters to that forum mentioned he had bought a new sport off a lot in June or July of 97 and cruise was not an option at that point. At a later point they sold him a factory kit with the components for a 98 TJ that did work for him. There was also one mention of some 97's not having the light in the gauge cluster, not that would be a complete dead end but would add to the complexity of making it look factory.
 
Shandara said:
When I did the cruise install on my 98 there was another forum I was on that had a guy trying to do the factory cruise on a 97. One of the posters to that forum mentioned he had bought a new sport off a lot in June or July of 97 and cruise was not an option at that point. At a later point they sold him a factory kit with the components for a 98 TJ that did work for him. There was also one mention of some 97's not having the light in the gauge cluster, not that would be a complete dead end but would add to the complexity of making it look factory.
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Mine does not have the dash light for it. I don't remember seeing a spot for it when I replaced the bulbs.

My throttle body and valve cover looks to have the spots to attach it though. But the engine could have been replaced before I bought it.
 
I ordered a new 97 back in the day and cruise was not an option. I had to install my own after getting it. I just used an aftermarket unit back then that did not involve the factory computer and had its own controller.
 
My 97 SE was about as bare-bones as they came, and I am (pretty much) the original owner. No cruise control for mine, but maybe that's because it was an SE.
 
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