Doosan G643E - Page 169

G643(E) Service Manual Chapter 5. Engine Management System (EMS) 167
Figure21. SECM Wiring Diagram for G643E LP Fuel
1
1
24
24
CRANK SENSOR
TRANSMISSION OIL
TEMP SWITCH
OIL PRESSURE
SWITCH
CAN SAE J1939
FUEL SELECT
SWITCH
FOOT PEDAL
FUEL SELECT NOTE: IF NO SELECT SWITCH IS USED, A JUMPER MUST BE USED. JUMPER A12 TO B1 FOR LP. JUMPER A15 TO B1 FOR GASOLINE.
FUEL
TEMPERATURE
SENSOR
GROUND SPEED
SWITCH
MAP/MAT
COOLANT
TEMPERATURE
SENSOR
THROTTLE BODY
O2B+_AN12_B19
A20_LSO7_O2B_HTR
O2A+_AN11_B13
FUELPMP_LS 05_A13
VLV2_LSO10_A2
VLV1_LSO11_A1
LO_LS08_A11
DRVG-A_A16
DRVG-B_B17
EST4_A6
EST3_A3
EST2_A10
EST1_A9
DRVP_A23
LS02_A8
LS04_A7
LS03_A4
LS01_A5
MPRD_A22
KEY_ON_B8
BATT_B22
RED 18 AWG
RED
PINK
COLOR
RED
RED
RED
RED
RED
RED
COLOR
BLACK 16 AWG
BLACK 16 AWG
COLOR
BLACK
BLACK
COLOR
COLOR
COLOR
COLOR
COLOR
CONNECTOR
CONNECTOR
AB
COLOR
MAP
MAT
COLOR
B5_CRNK+
B10_CAM+
A24_LSO9_MIL
B2_AN6_TOTS
B9_AN13_OPS
B21_CAN1-
B20_CAN1+
A15_EST8_FSS-LIQ
B7_AN4_APP1
B16_AN5_APP2
B14_AN10_FTS
A21_EST6_GRNDSPD_SW
B18_AN1_MAP
B12_AN8_MAT
B15_AN9_ECT
B23_AN2_TPS1
B4_AN3_TPS2
B24_XDRP_XPWR
B1_XDRG_XGND
A18_H1-_ETC_TB-
A17_H1+_ETC_TB+
IGN SWITCH
SED 14 AWG
MPR1
F5 2A
F1 15A
F4 2A
RED 18 AWG
O-START
12V
BATTERY
14 AWG
30
86
85
87
RED 14 AWG
RED 12 AWG
ENG GND
NEAR MODULE
DISTRIBUTOR
COIL
ABCD
B
A
ENGINE GND
LOCK-OFF
DUAL
DITHER
VALVE 1
DUAL
DITHER
VALVE 2
PRE-CAT
O2_A SENSOR
O2 SENSOR
CONNECTOR
(WIRE SIDE)
POST-CAT
O2_B SENSOR
A B
1 2
1 2
2 1
4 3
BLACK
GREY
1 2
2 1
3 4
4 3
O2HR
30
86
85
87
B A
4 3 2 1
F E D C B A
K J
1
TO ENGINE
OIL PRESSURE
LAMP
120 OHM
1/4 W
MIL
2
1
A B C
N
S
3 2 1
6 5 4
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR
COLOR