Author Topic: 1999 Patriot Exhaust Brake / Cruise control  (Read 447 times)

Brian Shackelford

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  • Posts: 5
1999 Patriot Exhaust Brake / Cruise control
« on: May 18, 2025, 05:03:58 AM »
Greetings! I've recently noticed that my cruise control and exhaust brake on my Cat 3126 are not working. I have already located the wiring schematic in Coach Assist, but prior to starting any troubleshooting, I decided to start with a physical inspection of the exhaust brake and solenoid. The brake solenoid was located between the firewall and the rear of the engine, but both of the wires were unhooked, with no indication of where they were connected. The schematic is difficult to read, does anyone know where the two wires from the solenoid connect to the coach? Thank you in advance for any assistance..
1999 Patriot Ticonderoga (12/98 build date)
Cat 3126B, Air/Hydraulic

Brian Shackelford

  • BAC Member
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  • Posts: 5
Re: 1999 Patriot Exhaust Brake / Cruise control
« Reply #1 on: May 18, 2025, 05:53:52 PM »
Patience requested! I understand this topic has been addressed, and I have done my due diligence. One of the posts stated the exhaust brake solenoid should have been mounted to the top of the air reservoir located on the drivers side, outside the frame rail under the engine access hatch. I have checked that location and the air reservoir is not in that location. I'm assuming the factory wiring for the solenoid would be near the mounting point. My 1999 Beaver has a 98 build date, not sure if that makes a difference. Thanks!
1999 Patriot Ticonderoga (12/98 build date)
Cat 3126B, Air/Hydraulic