2. CIRCUIT DIAGRAM BY SYSTEMS 4. HEATING SYSTEM CIRCUIT DIAGRAM F1 W R F20 1. Tachograph 2. Instrument A-4 1. Transmission neautrol S/W 2. DE12TIS ECM #40 1 WR RB 4 LO RB RB LO Starter motor B+ B+ ST Engine preheater unit Preheater control unit DV ENGINE 6 4 1. Seat belt 2. Key hole lamp unit 5 GrW Cable 1 3 4 C203 32 30 15b 10 A 1 5A LOCK B ACC ON R ST ACC ON P START L O 3 8 7 B C203 2 G TIMER Q.O.S (DE12~12TI) B 31 B B