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06 Yukon Denali service stability message, no cruise control, OBD2 port has power but no communication
Im curious if you have 12v on TAC module terminal 6(LT BLU Wire) ONLY when the brakes are pressed? -Yes. Assuming the pin out goes from bottom left to right when the clip is facing me. I was checking things while I had something holding the brake pedal down and realized that the third brake...- bama_dave
- Post #11
- Forum: Engine & Drivetrain
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06 Yukon Denali service stability message, no cruise control, OBD2 port has power but no communication
I didn't have a helper handy, but I was able to easily probe at the pigtail for the multifunction switch on the column since I had all the trim taken off (posted a couple pictures of it just for reference). Multifunction switch is working as expected. I got a new shift interlock solenoid and...- bama_dave
- Post #9
- Forum: Engine & Drivetrain
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06 Yukon Denali service stability message, no cruise control, OBD2 port has power but no communication
It was the brake fuse in the under-hood fuse box. And I'm thinking that I tried to read codes some time ago and had this same issue before the cruise went out, so it's possible that the two are unrelated. Regardless, it's a problem I'd like to fix if I can. BUT.... I dont think you can...- bama_dave
- Post #7
- Forum: Engine & Drivetrain
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06 Yukon Denali service stability message, no cruise control, OBD2 port has power but no communication
Everything seemed ok around the TAC Module. Nothing obviously pinched/frayed/corroded. I'm trying to look at the schematics you attached and figure out how to start eliminating possible sources of the problem. Am I correct that the cruise fuse should have 12V with the key in the run position...- bama_dave
- Post #5
- Forum: Engine & Drivetrain
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06 Yukon Denali service stability message, no cruise control, OBD2 port has power but no communication
Any idea how I can verify that? Voltage on a wire, fuse, etc? It’s a brand new switch, and the brake lights are functioning properly, but I do think I remember reading somewhere that the switch could still be faulty in spite of those things.- bama_dave
- Post #3
- Forum: Engine & Drivetrain
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06 Yukon Denali service stability message, no cruise control, OBD2 port has power but no communication
Hi all. I recently rebuilt the hydroboost on my Yukon, and afterwards the cruise control and brake lights didn't work. I put a new brake switch on, but that didn't help. Discovered a blown fuse for the brake lights, so now they work, but I still have no cruise control. I had been getting an...- bama_dave
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- Replies: 11
- Forum: Engine & Drivetrain
