I had Batee check the instrument cluster for any Cruise control problems but he said it looks fine. I bought switches for the brake pedal as both the old ones were bad (although I did take them apart and cleaned them up after really checking them out and they now work fine). My steering column switch appears to be working. There is power from the cruise control stalk plug when I turn the key on. I get lights from my test light when I try the different controls on the cruise stalk while plugged into the wire from the instrument panel. So all of that part seems to be fine. I read in my manual that the speedo sensor could be a problem for it not working but the speedometer works fine so I figured it must be ok too. The brake switches are working correctly and in position correctly.

I checked resistance on the servo as per the manual and it checked out ok too. I just get nothing when I drive the car as far as the cruise goes. Apparently mine is the Intigrated custom cruise 111 system but mine does not have the cruise lamp described int the schematics. So I don't have the electronic controller because that is integrated in the instrument panel. My cruise control servo sits right over the battery. The wiring come from where the vacuum cannister sits up front under the left headlight bucket. When I got the car, none of the cruise control components were there. But as I said Batee says I have that in the instrument panel. The panel has 2 plugins, lower for the cruise. The wiring loom has a long connection to the servo.

I am not getting any power to the servo when I start up the car and it is neutral. None of the terminals are hot with the key on and just sitting there not running but in drive. I switch the on button and press the cruise button but I don't get any power to any of the terminals on the wiring loom at all. I did find a cut black wire and thought cool, the problem but nothing still. I don't see any fuse for it. My cluster does have LS on the back so it does have the cruise control.

I would think it should have power going to the servo at least when I turn the key on and turn the cruise control on from the stalk. Oh, and my 3 port check valve is also working for vacuum too. Not a critical thing for selling the car as some models didn't come with it but I would like to get it working just the same.

Thanks

Russ

P.S. I will call Brian (batee) tomorrow to see what he might have to add of give some hints too.

 

Mine was several issues laced together. The big one being a failed NPN transistor in the cluster. Having batee check that rules that out. There is no indicator lamp I'm aware of on 84 to indicate it is on.

My vacuum lines were reversed on the servo, that was an issue too.

Third was the switch for the pedals. Lifting up on the pedals confirmed that.

Lastly the little tiny ribbon connector under the column had dirty contacts. It's like a red/blue/green type with a clear plug on the end. (AT least on mine it was.) But I had traced that with a meter back to some weird function in the cruise as well. Otherwise that is it of what I had to fix on mine. I don't think there is much else to the system other than the vacuum dumps on the pedals...

Hopefully this helps?

 

Thanks for getting back so quickly with this. All the items you mentioned I have checked, and the wires under the column are in very good shape, red blue green and yellow ribbon I think. What I was wondering is if your setup is like mine as far as servo placement and the wiring loom. Plus one thing that would really narrow down my problem would be if you could somehow with yours, unplug the servo and check to see if any of the terminals from the loom have power with the key on or off, on or off at the stalk and such. If it needs to be in gear or actually running to get any power to it, which of course would be hard to check. Then it would be a matter of tracing it back through the firewall but mostly throwing a hammer at it after that lol.

Thanks

Russ

 

I can check tomorrow. It is not in my garage at the moment and I don't feel like driving for half an hour to check. Sorry. I will update but iirc one or two wires did have power servo on.

Also there is a 3 amp fuse in the panel labeled cruise... that was also blown on mine... bottom right when looking from the door iirc.

 

I found the fuse, it turned out ok, damn it. I do think the servo should have some sort of power going to it too. Will keep ckecking. May undo where the loom plugs into the firewall. I have an old wiring loom and I see what plugins are used for the servofrom that one.

Russ