Service Manual User guide
Reference Diagrams
31200079
4-9
Diagram 4-3 — Electrical Schematic (cont’d)
MV0450
RELAY K18
87
87a
30
85
86
NEUTRAL
NEUTRAL A
FROM E2 A (SEE SHT. 1)
FROM E1 A (SEE SHT. 1)
D10
RELAY K12
IGN POWER
RELAY GND
RELAY K11
SHIFT TO 1ST
SHIFTER PWR
BOOM OVER 40
RELAY K13 RELAY K14 RELAY K15 RELAY K16 RELAY K17
FORWARD SGN
PLUGGED
BOOM OVER 40
REVERSE SGN
RELAY GND
PLUGGED
PLUGGED
IGN POWER
PLUGGED
BOOM OVER 20
SOLENOID Y1
SOLENOID Y2
SOLENOID Y3
DASH GND
ONLY 4 OF 16
PINS SHOWN
(OTHERS NOT USED)
UPPER KOSTAL
TRANSMISSION
CONNECTOR
('B' OF TRANS
SOLENOID HARNESS)
ONLY 4 OF 16
PINS SHOWN
(OTHERS NOT USED)
DASH GND
SOLENOID Y6
SOLENOID Y5
SOLENOID Y4
UPPER KOSTAL
TRANSMISSION
CONNECTOR
('C' OF TRANS
SOLENOID HARNESS)
PLUGGED
PLUGGED
PLUGGED
SHIFTER PWR
SHIFTER Y6
SHIFTER Y3
BOOM 21-40
BOOM OVER 20
N/C
BOOM OVER 40
N/C
IGN POWER
JUMPER 1
BOOM 21-40
SOLENOID Y6
SHIFTER Y6 A
N/C
N/C
IGN POWER
SOLENOID Y1
FORWARD SGN
N/C
IGN POWER
SOLENOID Y2
REVERSE SGN
RELAY GND
RELAY GND
RELAY GND
RELAY GND
RELAY GND
RELAY GND
JUMPER 2
JUMPER 1
N/C
SHIFTER Y5
JUMPER 2
FROM CIRCUIT
BOARD J11
(SEE SHT 1)
FROM CIRCUIT
BOARD J3
(SEE SHT 1)
FROM SHIFTER
CONNECTOR
(SEE SHT 1)
D5D4D3D1 D2
D6
D7
D8
D9
TO DASH
GND STUD
DIODE
MODULE
#1
DIODE
MODULE
#2
'A' OF CIRCUIT
BOARD &
SHIFTER HARNESS)
'B' OF CIRCUIT
BOARD &
SHIFTER HARNESS)
'C' OF CIRCUIT
BOARD &
SHIFTER HARNESS)
ON WHEN BOOM
OVER 40°
ON WHEN BOOM
OVER 40°
ON WHEN BOOM
OVER 20° AND
NOT OVER 40°
ON WHEN
SHIFTER
Y5 IS ON
ON WHEN SHIFTER
Y5 IS OFF AND
BOOM IS 21-40°
ON WHEN
FORWARD
SELECTED
ON WHEN
REVERSE
SELECTED
SHIFTER Y4
SHIFTER Y5
NEUTRAL
REVERSE
FORWARD
DIRECTION INPUT
FORWARD
FROM CIRCUIT
BOARD J10
(SEE SHT 1)
REVERSE
NEUTRAL A
DIRECTION INPUT
'E' OF CIRCUIT
BOARD &
SHIFTER HARNESS)
30
87a
87
86
85
87
87a
30
85
86
87
87a
30
85
86
87
87a
30
85
86
87
87a
30
85
86
87
87a
30
85
86
87
87a
30
85
86
D
F
E
B
C
A
C
D
A
B
11
12
10
9
8
7
1
3
7
2
4
6
7
5
6
5
4
3
2
1
B
D
C
A
MV0460
5 PSI
7
29
28
26
27
24
25
15
23
22
20
21
18
19
16
17
11
13
14
12
9
10
8
3
5
6
4
1
2
G3
A2
A1
A3
B1
B2
B3
C2
C1
E3
D1
C3
D2
E1
D3
E2
F3
F1
F2
G2
G1
K1
H2
H1
H3
J2
J1
J3
K2
K3
CAB FDE HGJ
C
A
B
C
A
B
120 OHM
120 OHM
BCAABABABABAB
A
B
SENDER
OIL PRESS
SENDER
CLT TEMP
PRESSURE
SWITCH
ENGINE OIL
CLT TMP
OIL PSI
HR MTR
OVR SGN/918
TO DASH HARNESS (UNDER SEAT)
PLUGGED
PLUGGED
PLUGGED
PLUGGED
PLUGGED
HD36-24-29SE
PLUGGED
PLUGGED
PLUGGED
PLUGGED
PLUGGED
TRANS TEMP
PLUGGED
GAGE PWR
THR RTN/914
OIL PSI
PLUGGED
HR MTR
THR SGN/915
OVR SUP/911
FAULT LT/473
ALT EXC
ECU GND/050
PLUGGED
PLUGGED
CLT TMP
ECU BAT/022
ECU IGN/012
MANIFOLD AIR
TEMP SENSOR
COOLANT TEMP
SENSOR
FUEL TEMP
SENSOR
CRANK
SENSOR SENSOR
OIL PRESSURE INJECTOR
PUMP
DEERE ENGINE ECU
DIAGNOSTIC
CONNECTOR
CAN TERMINATOR
CAN TERMINATOR
ECU IGN/012
ECU IGN/012
ECU BAT/022
ECU GND/050
ECU GND/050
(SHIELD/020)
(SHIELD/020)
(SHIELD/020)
OVR SUP/911
OVR SUP/911
OVR SGN/918
FAULT LT/473
SEE SHT 1
THR SGN/915
THR RTN/914
THR RTN/914
THR RTN/914
THR RTN/914
THR RTN/914
GAGE PWR
SHTDN/941
SHTDN/941
INJ B/493
INJ B/493
CLT/461
CLT/461
CRANK A/447
CRANK A/447
390 OHM, 1W
HI LO/947
PLUGGED
FUEL TMP/428
FUEL TMP/428
MAN TMP/463
MAN TMP/463
CRANK B/448
CRANK B/448
PLUGGED
CAN L/905
(CAN L/905, GREEN)
(CAN L/905, GREEN)
(CAN L/905, GREEN)
PLUGGED
OIL PRS/467
OIL PRS/467
CAN H/904
(CAN H/904, YELLOW)
(CAN H/904, YELLOW)
(CAN H/904, YELLOW)
PLUGGED
PLUGGED
PLUGGED
PLUGGED
PLUGGED
PLUGGED
INJ A/491
INJ A/491
PLUGGED
PLUGGED
PLUGGED
PLUGGED
PLUGGED
12 TURNS
PER FOOT
TWIST
SHIELDED
CABLE
SHIELDED
CABLE
SHIELDED
CABLE
TWIST
PER FOOT
12 TURNS
PLUGGED
SENDER
TRANS TEMPTRANS TEMP
G
J
H
D
A
RQPNF E
Q
L
V
K
P23222
P23217
P19472
NOTES:
1. ALL CONNECTOR DESIGNATOR LETTERS ON THIS SHEET REFER TO THE
ENGINE ECU HARNESS (4923232).