Headlight Bell Whistle Toggle Switch Steam Release Brake Squeal Coupler Dimmer Mute Effect Lighting Effect Lighting Water Stop Injector A value of 255 corresponds to full voltage available Additional consist acceleration (combined with CV3) Additional consist braking (combined with CV4) Function Map Option 1 eq 0 Function Map Option 1 eq 1 0 is fast, 15 is slow, 4 is recommended for start 0-15 seconds Additional braking when Fll activated (combined with CV4) Southern Pacific 6-Chime Southern Pacific #4449 (Airhorn) Southern Pacific #4449 (Whistle) Southern Pacific 6-Chime Southern Pacific #4449 (Airhorn) Southern Pacific #4449 (Whistle) Short Whistle Function Alternate Whistle