91 FJ80 Cruise Control Help (1 Viewer)

[VitaminC914]

I need some help. I spent quite a bit of time trying to diagnose the issue with my CC to no avail. Here is where I am at:

1.Light comes on the dash when I push the button.
2. I went through the first set of steps to diagnose the Set/Coast circuit and that is normal. (It flashes as it should)
3. I tested the Res/Acc and it flashes 5 times and stops. I cannot find anywhere what 5 flashes mean
4. I tested the brake light switch and it is working as it should.

I saw the previous threads about buying the Hall Effect Sender Part C6001 from Australia but unless I am reading it incorrectly, it is not made for my 91 FJ80, it is for later year trucks.

I am attaching a couple of pics of my set up. Also, I did look inside the control box where the cables connect and it is very clean and everything moves freely.

I don't have an issue spending $150 on the Hall Effect Sender if it will solve the problem, I am just not sure if I am looking at the correct part.

Any help, direction or advice is greatly appreciated. TIA

 

[Malleus]

I've put a copy of both the 1991 FSM and EWD in the Resources section. Download them and keep them both close for future reference.

 

[highharrison]

If you haven't tried it already, disconnect and reconnect the plug on the Cruise Control Actuator in the engine bay on the passenger side.

I had the same issue, saw someone post to do that, and haven't had any problems since. For whatever reason, the connection gets gummed up and/or corroded and causes the CC to malfunction at times. Disconnecting/Reconnecting with some dielectric grease seems to be a solid fix.