Install Instructions Roadmaster Chassis

Note: Since Coach builders tend change things from time to time. As this information is based on feedback from other Motor Home owners and conversations with tech help at Roadmaster it should be considered as probable not absolute Check your wiring diagrams.
 
Our concept is to take the power supply and the signal from the ECM that is enroute to Cockpit Exhaust Brake Switch and divert them through the BrakeSwitch control box. Since the first step in ALL emergencies and most stops and speed reductions start with the application of service brake. We use this premise to control the exhaust brake system. With this concept just a touch of brake pedal will activate the exhaust With this concept you can coast when you want to coast go when you want, and have the Exhaust Brake System armed at all times.
 
As you look at BrakeSwitch control box there are 6 wires.
1. 2 Red Wires 2 White Wires 1 Purple Wire 1 Black Wire
The wire color of BrakeSwitch is for identification only NOT for any code.
 
Below is photo of a Monaco Electric compartment. There are two electric boxes close to bottom of compartment. Arrow (1) is a typical location for BrakeSwitch. The wires we are looking for to divert into BrakeSwitch control box are in the bundle at (2)
 
Below Code: Numbers refer to schematic location. Wires are labeled with letters.
1. Locate wire 62 E: This is EXHAUST BRAKE WIRE Cut this wire then reconnect the
circuit by attaching each with a Red wire leading to BrakeSwitch control box.
2. Locate wire 61B: This is EXHAUST BRAKE WIRE ENABLE Cut this wire then
reconnect the circuit by attaching each with a White wire leading to BrakeSwitch control box.
3. Locate wire 62A: This is BRAKE LAMPS Attach the Purple wire to this wire.
4. Take the Black wire and attach it to Ground. Inside the box (3) is a grounded post.