Driver Controls and Instruments positions. To operate the wipers in delay mode, move the control lever down one position. 1 1 2 5 2 3 1. Steering Column 2. Control Lever f541756 4 Fig. 3.6, High/Low Beam Control f820210 1. High Speed 2. Low Speed 3. Off Windshield Washer 4. Delay Mode 5. Washer Button Depress the button on the wiper/washer control lever to activate the windshield washer. See Fig. 3.7 . Fig. 3.7, Windshield Wiper and Washer Control Interrupt Switch This computer controls specific engine and vehicle speed modes of operation to maximize vehicle fuel economy and performance. A spring-loaded interrupt rocker switch operates the marker lights. See Fig. 3.8 .
With the vehicle lights on, depress and release the interrupt rocker switch to briefly turn off the marker lights. A yellow engine check light and a red engine stop light are located on the instrument panel. With the ignition switch on, both lights come on for about two seconds; then, if there is no problem with the electronic engine system, the lights will go out. Whenever there is a prob- lem within the electronic engine system, one of the Cummins Electronic Engine The Cummins electronic engine has a fuel control sys- tem controlled by a microprocessor-based computer. 3.5