SECTION 4 ELECTRICAL SYSTEM GROUP 1 COMPONENT LOCATION 1. LOCATION 1 RD21074EL01 1 Horn switch 2 Breaker operation switch 3 Cluster 4 Cigar lighter 5 Hour meter 6 Safety lever 7 Fan switch 8 One touch decel switch 9 Air conditioner controller 10 Master switch 11 Fuse box 12 RS232 serial connector 13 CPU controller 14 Prolix resistor 15 Accel dial switch 16 Start switch 17 Wiper and washer switch 18 Main light switch 19 Cab light switch 20 Spare cover 21 Beacon switch 22 Breaker selection switch 23 Air conditioner switch 4-1