Doosan Mega 500-V (Tier II) — Light Circuit

The lighting system consists of the headlight, the position light, the turn signal light, the hazard light, the stop light, the license plate light, the working light, the rotating beacon light (option) and the switches, which are used to turn on the lights. 1. When the headlight switch (3) is in the first step, through the fuse box 1 (1) to the "2," "6" terminal of headlight switch (3), the following lights will be "ON." A. The front combination light (L)(12) and rear combination light (L) through the fuse box 2 (23). B. The front combination light (R)(13) and rear combination light (R) through the fuse box 2 (23). C.

The illumination lights through the "9" terminal of all kind of rocker switches include the headlight switch (3), the front working light switch (19), the rear working light (21) and the hazard switch (6). D. The license plate light (16). 2. When the headlight switch (3) is in the second step, the current flows through the fuse box 1 (1), to the "2," "3" terminal of headlight switch (3) and to the "86," "85" terminal of headlight relay (8), and the "30," "87" terminal of headlight relay (8) is connected. As a result, through the fuse box 1 (1) to the "30," "87" terminal of headlight relay (8), the voltage is applied to the "56" terminal of combination switch (R)(4). A.

At this time if the combination switch (4) is in the "0" position, the current flows to the "56b" terminal and it allow the low light, which is in the headlight (L)(10) and the headlight (R)(11), to be turned "ON." B. Also if the combination switch (4) is in the " t " position, the current flows to the "56a" terminal and it allow the high light, which is in the headlight (L)(10) and the headlight (R)(11), to be "ON." At the same time the current flows to the "CN2-7" terminal of instrument panel (17) and the headlight indicator L7 will be "ON," C.

And if the combination switch (4) is in the " s " position, the current flows to the "56b" terminal and it allows the low light, which is in the headlight (L)(10) and the headlight (R)(11), to be "ON." At the same time another current flows from the fuse box 1 (1) to the "15/1," "56b" terminal of combination switch (4) and the high light, which is in the headlight (L)(10) and the headlight S0802195K Page 29 Electrical System Reference Number Description 1 Fuse Box 1 2 Blinker Unit 3 Headlight Switch 4 Combination Switch 5 Shift Lever Switch 6 Hazard Switch 7 Stop Light Switch 8 Headlight Relay 9 Reverse Relay 10 Headlight (L) 11 Headlight (R) 12 Front Combination Light (L) 13 Front Combination Light (R) 14 Rear Combination Light (L) Reference Number Description 15 Rear Combination Light (R) 16 License Plate Light 17 Instrument Panel 18 Diode 19 Front Working Light Switch 20 Front Working Light 21 Rear Working Light Switch 22 Working Light Relay 23 Rear Working Light 1 24 Rear Working Light 2 25 Fuse Box 2 26 Starter Switch 27 Pilot Buzzer 28 Alarm Relay 1 29 Alarm Relay 2