TM 9-2320-361-10 2-6. SPECIAL PURPOSE KITS CONTROLS AND INDICATORS (Contd) h. Convoy Warning Light. Key Item and Function 1 Warning Light illuminates and rotates when turned on. 2 Light Switch turns warning light on/off. i. Windshield Washer Kit. Key Item and Function 3 Reservoir Assembly stores washer fluid. 4 Washer Lever is pulled up to activate spray pump. j. Van Body Heater Kit. Key Item and Function 5 Hi-Lo Switch controls speed of blower in primary heater. 6 Run-Off-Start Switch is positioned down to start body primary heater, up to run heater, and in center position to stop heater. 7 Run-0ff-Start Switch is positioned down to start body secondary heater, up to run heater, and in center position to stop heater. 8 Hi-Lo Switch controls speed of blower in secondary heater. 2-28