1. POWER CIRCUIT 1. POWER CIRCUIT The negative terminal of battery is grounded to the machine chassis directly. When the start switch is in the OFF position, the current flows from the positive battery terminal as shown below. GND :
Ground 4-7 1) 2) OPERATING FLOW Battery Battery relay [CR-1] Maxival fuse [CN-60] Master switch [CS-74] Fuse box [No.1] Engine ECM [CN-93 (1, 25, 26, 27, 28)] Fuse box [No.2] United MCU [CN-51 (01)] Fuse box [No.3] DEF supply module [CR-51 (3)] DEF lamp [CL-40 (1)] Fuse box [No.4] l/conn [CN-5 (59)] l/conn [CN-10 (3)] Room lamp [CL-1 (2)] Door switch [CS-1] l/conn [CN-10 (2)] RMS [CN-125B (6)] Radio & USB player [CN-27A (8)] Fuse box [No.5] Line heater [CR-52 (30, 86) Fuse box [No.6] Master switch [CS-74B] l/conn [CN-5 (36)] Start switch [CS-2A (1)] RMS [CN-125A (1)] GPS connection [CN-125 Power relay [CR-35 (30)] Fuse box [No.7] l/conn [CN-11 (5)] AC & Heater controller box A (7) Blower relay (4) Fuse box [No.8] I/conn [CN-5 (18)] I/conn [CN-17 (5)] Wiper motor controller [CN-141 ( Wiper motor [CN-21 (4)] Fuse box [No.9] I/conn [CN-5 (11)] Cluster [CN -56A (1)] Hour meter [CN-48 (1)] I/conn [CN-8 (6)] Jog dial module [CN-363 (2)] Fuse box [No.10] DEF & SCR sensor [CR-50 (3)] Fuse box [No.11] United MCU [CN-54 (18)] ※ I/conn :
Intermediate connector CHECK POINT Engine Start switch Check point Voltage STOP OFF ① - GND (battery 1EA) ② - GND (battery 2EA) ③ - GND (battery relay) ④ - GND (maxival fuse) 10~12.5V 20~25V 20~25V 20~25V