Service Manual
PageA–8
08159SLRevC
,DrawingRev,Sheet
ElectricalSchematicSheet2of5(SerialNumberBelow313000300)
Electrical Schematic
Groundsmaster 5900/5910
All relays and solenoids
are shown as de- energized.
All ground wires are black.
Sheet 2 of 5
TX
B
J
F
C
R
R
MAXI #2
R
1 4 7
A
E
G
D
A
R
CONTROLLER
LINE 02
LINE 04
LINE 07
GROUND
RS232 TX -
CAN-
RS485B
C
H
B
B
2F 4
2F 1
2F 2
VIO
T/BK
PK
BN
Y
W
R/W
VIO
R
BK
Y
PK
PK
BK/W
T/BK
BK
Y
PK
BK
T
R
R
RX(- )
BK/W
CAP
R
1F 1 5 A IGNITION SWITCH
R
120 OHM
A
R
2F 3
1F 3
60 A
60 A
R
OR
BK/W
SHEET 1
LINE 38
HORN
T
(+)
(- )
T/BK
BK
57- A
BK
R/W
T/BK
2 3
PK
PK
R/W
T
OR/BK
BK
5 86 9
CANtrak 2600
R/W
11 12
C
R
MAIN POWER
CAB POWER
LINE 01
LINE 05
LINE 06
LINE 09
LINE 39
SHEET 6
A B
PWR+
RS232 TX +
C D E F
RS232 RX -
CAN+
RS232 RX +
RS485A
SWITCHED O/P
NOT USED
10 A HORN
10 A SEAT
MAXI #3
1F 4 30A CUMMINS CONTROLLER
CAN-
AIR- RIDE SEAT
54- H
HOUR METER
LINE 29
LINE 27
LINE 22
R
BK
BK/W
LINE 25
R/W
LINE 16
LINE 13
LINE 20
BK/W
CANtrak 2600
CAN-
+12 VDC
10 A POWER POINT
1A INFO CENTER
60 A
MAXI #1
1F 2 30 A STARTER
CAN+
HORN SWITCH
GROUND
BLOCK
08- A
R/W
54- G
CONNECTOR
LINE 28
LINE 23
R
LINE 21
LINE 26
LINE 15
LINE 18
LINE 12
LINE 14
LINE 19
GN/BK
10
INFO CENTER
SHEET 4
SHEET 3
120 OHM
CAN+
CAN+
CAN-
GND
DIAGNOSTIC
ENGINE
86
30
85
87
08- B
SHEET 5
OPTIONAL FUSE BLOCK
LOOP- BACK CONNECTOR
COMMUNICATION PORT
POWER POINT
D
B
RUN
E
F
C
A
A B C D E F
OFF - - - - NONE
RUN - - - - B+C+F; D+E
START - - - A+B+C
OFF START
IGNITION SWITCH
POWER RELAY
RELAY
RELAY
WHEN A CONDUCTOR CONTINUES ON ANOTHER SHEET, THE SHEET
NUMBER AND A LINE NUMBER WILL BE IDENTIFIED.
NOTE: THE ELECTRICAL SCHEMATIC IS SHOWN ON SIX (6) SHEETS.
86
30
85
87
86
30
85
87
15 A ROAD AND BRAKE LIGHT
CAN- bus
RESISTOR
TERMINATION
CAN- bus
RESISTOR
TERMINATION
VIO OR
R
BK
PK
(Serial Number Below 313000300)
g254540