Cruise cntrl 95 discovery

[joey]

Ok this is a long shot, but what about a brake switch going bad? Since the brake switch also shuts the cruise control off, and they are known to go bad....

Just thinking.

 

[Maddie]

Did check brake switch as it was the fault before. I'm here to tell you when i'm on vacation in June I'm going to spend my time on this trouble. I already have spent close to twenty hrs on it. As stated previously I have the electrical manual and I went thru all of trbl shooting guide one step at a time and everything pointed to the ecu. I been an electronic trouble shooter most of my career somethings just defy of or elude manuals. Joey I think your grounding trbl idea is making the most sense right now. I would like to know if anyone tests diode z186 they get 11.8 volts to ground. I'm thinking this diode is not seeing enough voltage because of a grounding issue. And of course the speed sensor is my other concern as I don't know what it's doing at high speeds. I should see a square wave but till I by an invertor for my 110 ac scope I won't be able to test it.