68
- FORM NO. 56043129 - SR 1900
ELECTRICAL SYSTEM
WIRING DIAGRAM 1 of 3
Item Qty Description
A3 Controller
A5
Manifold, Fuel (GM Engine only)
BT
Battery, 12Vdc
CB1
Circuit Breaker, 70 Amp, Main
CB2
Circuit Breaker, 20 Amp, Headlights
CB3
Circuit Breaker, 15 Amp, Starter
CB4
Circuit Breaker, 20 Amp, Accessories
CB5
Circuit Breaker, 10 Amp, Ignition
CB6
Circuit Breaker, 20 Amp, Shaker
CB7
Circuit Breaker, 15 Amp (signal lights option)
CB8
Circuit Breaker, 10 Amp (misting pump option)
CB9
Circuit Breaker, 40 Amp (for cab option)
E13
Flasher (optional)
F1
Fuse, 1 Amp
H1 Horn
K1
Relay, Horn
K2
Relay, Lights
K3
Relay, Shaker
K4
Relay, Neutral
K5
Relay, Signal Lights (optional)
K6
Relay, Misting Pump (optional)
LP1
Head Light, Right
LP2
Head Light, Left
LP3
Lamp, Right Front (optional)
LP4
Lamp, Right Rear Signal (optional)
LP5
Lamp, Right Rear Tail/Brake (optional)
LP6
Lamp, Left Front Signal (optional)
LP7
Lamp, Left Rear Signal (optional)
LP8
Lamp, Left Rear Tail/Brake (optional)
LP9
Lamp, Curb (optional)
LP10
Lamp, Trouble (optional)
LP11
Lamp, Rear Work (optional)
LP12
Light, Strobe (optional)
M2
Motor, Shaker
M3
Pump, Fuel
M4
Pump, Misting (optional)
P3
Gauge, Combination
R1
Sender, Oil Pressure
R3
Sender, Fuel
(not used on LPG models)
S1
Switch, Ignition
S22
Switch, Brake
S24
Switch (part of LP10)
S25
Switch, Hazard
(optional)
S26
Switch, Turn Signal
(optional)
YE
L/
BL
K
GRA/BLK
BLK
VIO
WHT/BLK
ORN/GRN
GRN/BLU
RED
RED/GRN
BLK
PINK
GRA/BLK
GRN/YEL
GRA/BLU
GRN/YEL
GRN/YEL
GRA/BLU
BLK
BLK
GRN/YEL
RED
VIO
VIO
RED
ORN
YEL/BLK
GRA/RED
RE
D
G
RN
/B
LU
PINK
RED
YEL/BLK
BLK
BLK
YEL/BLK
BLK
YEL/BLK
YEL/BLK
BLK
BLK
BLK
WHT
BLU/GRN
BLK
VIO
BLU/PINK
PINK
TAN
VIO
BLK
RE
D
WHT/YEL
BLK
PINK/YEL
VIO
GRN
GRN/YEL
YEL
GRA
YEL
GRA
PINK/YEL
VIO/YEL
GRA
GRN
VIO/YEL
YEL
GRN
GRN
VIO/YEL
BLK
BLK
VIO
BLK
BLK
YEL/BLK
RED
BLK
BLU/PINK
RED
RE
D
VIO
G
RN
/B
LK
BLK
BLK
BLK
YEL/BLK
YEL/BLK
VIO/YEL
RED
BLU
GRA/ORN
BLK
PINK
PURPLE
BLK/RED
BLK/RED
BLK/GRN
GRN/WHT
GRN/RED
WHT/GRN
BLK/GRN
GRN/WHT
GRN/RED
WHT/GRN
TAN/BRN
BLU/BLK
RED
BLK
GRN/YEL
GRN/YEL
VIO
BLK
RED/VIO
RED
BLK
GRN/YEL
BLK
BLK
VIO/GRA
VIO/GRA
BLK
YEL
BLK
RED/WHT
WHT
WHT
BLK
GRN/WHT
GRN
BLK/WHT
BLK
RED
BLU
RED
BLU/BRN
ORN
TAN
VIO
BLK
PINK
GRA/BLU
GRN/YEL
RED
TAN
COMBINATION GAUGE OPTION
NOTE:
P3 AND R3 ARE NOT USED ON L.P. MODEL
CHECK ENGINE LIGHT
OUTPUT TO CONTROL
BOX ASSEMBLY
CONNECT TO
CONTROL BOX
ASSEMBLY
TO CONTROL BOX
ASSEMBLY
(OPTIONAL)
(CLOSED IN NEUTRAL)
COOLANT TEMPERATURE
OUTPUT
(REFERENCE:
E-CONTROLS, INC.
DRAWING NO. E1737100
AND E1737200)
A3
GM ENGINE
SYSTEM
STARTER COMMAND
STARTER B+
IGN. SW INPUT
MIL OUTPUT
(SWITCHED
GROUND)
THROTTLE INPUT
(12V FOR HIGH)
FUEL PUMP OUTPUT
GROUND
ALT. EXCITE
E1
HEATER TEMP.
CONTROL
1 BLOWER MOTOR FOR
PRESSURIZED AND HEATED CAB,
2 BLOWER MOTORS FOR A/C
G
HVAC OPTION
I
I
CB4
CIRCUIT BREAKER, 20 AMP
CB4
CIRCUIT BREAKER, 20 AMP
1
2
M
M2
MOTOR, SHAKER
M
M2
MOTOR, SHAKER
1
2
LP12
LIGHT, STROBE
LP12
LIGHT, STROBE
1
2
X1
X1
F
F
K1
RELAY, HORN
K1
RELAY, HORN
30
87
87a
M
M3
FUEL PUMP
M
M3
FUEL PUMP
-
+
h
P1
HOURMETER
h
P1
HOURMETER
1
2
3
4
S30
SWITCH, FAN
S30
SWITCH, FAN
B
L
M
H
C
R3
SENDER, FUEL
R3
SENDER, FUEL
1
2
M
M6/M9
MOTOR, BLOWER MOTOR
M
M6/M9
MOTOR, BLOWER MOTOR
-
YEL
RED
ORN
LP10
TROUBLE LAMP
(OPTIONAL)
LP10
TROUBLE LAMP
(OPTIONAL)
1
2
1
2
X3
X3
A
B
C
D
S34
SWITCH, PRESSURE
S34
SWITCH, PRESSURE
1
2
CB2
CIRCUIT BREAKER, 20 AMP
CB2
CIRCUIT BREAKER, 20 AMP
1
2
K8
RELAY, HVAC
(OPTIONAL)
K8
RELAY, HVAC
(OPTIONAL)
S35
SW SPST
S35
SW SPST
1
2
S24
SW SPST
S24
SW SPST
1
2
X2
X2
F
F
S1
SWITCH, IGN.
S1
SWITCH, IGN.
ACC
BAT
ST
IGN
CB3
CIRCUIT BREAKER, 15 AMP
CB3
CIRCUIT BREAKER, 15 AMP
1
2
LP3
LAMP, RIGHT FRONT
(OPTIONAL)
LP3
LAMP, RIGHT FRONT
(OPTIONAL)
BLK
WHT
L10
VALVE, COMPRESSOR
L10
VALVE, COMPRESSOR
1
2
S22
SWITCH, BRAKE
S22
SWITCH, BRAKE
2
1
t
o
S33
THERMOSTAT
t
o
S33
THERMOSTAT
1
2
BT
BATTERY, 12 Vdc
BT
BATTERY, 12 Vdc
+
-
K2
RELAY, LIGHTS
K2
RELAY, LIGHTS
30
87
87a
1
2 3
4
5
6
7
P3
GAUGE, COMBINATION
1
2 3
4
5
6
7
P3
GAUGE, COMBINATION
1
2
3
4
5
6
7
H1
HORN
H1
HORN
1
2
CB5
CIRCUIT BREAKER, 10 AMP
CB5
CIRCUIT BREAKER, 10 AMP
1
2
LP6
LAMP, LEFT FRONT SIGNAL
(OPTIONAL)
LP6
LAMP, LEFT FRONT SIGNAL
(OPTIONAL)
BLK
WHT
K6
RELAY, MISTING PUMP
(OPTIONAL)
K6
RELAY, MISTING PUMP
(OPTIONAL)
30
87
87a
LP11
LAMP, REAR WORK
(OPTIONAL)
LP11
LAMP, REAR WORK
(OPTIONAL)
1
2
M
M10
MOTOR, BLOWER MOTOR
M
M10
MOTOR, BLOWER MOTOR
-
YEL
RED
ORN
K4
RELAY, NEUTRAL
K4
RELAY, NEUTRAL
30
87
87a
S26
SWITCH, TURN SIGNAL
(OPTIONAL)
S26
SWITCH, TURN SIGNAL
(OPTIONAL)
1
2
3
7
LP1
HEAD LIGHT, RIGHT
LP1
HEAD LIGHT, RIGHT
1
2
X1
X1
C
C
M
M8
MOTOR, CONDENSER FAN
M
M8
MOTOR, CONDENSER FAN
-
+
X2
X2
K
K
CB6
CIRCUIT BREAKER, 20 AMP
CB6
CIRCUIT BREAKER, 20 AMP
1
2
K8
RELAY, HVAC
K8
RELAY, HVAC
30
87
87a
M
M5
MOTOR ASM, WIPER
(CAB OPTION)
(INCLUDES 2 SPEED SWITCH)
M
M5
MOTOR ASM, WIPER
(CAB OPTION)
(INCLUDES 2 SPEED SWITCH)
-
+
K10
RELAY, COMPRESSOR
K10
RELAY, COMPRESSOR
30
87
87a
X1
X1
A
A
K5
RELAY, SIGNAL LIGHTS
(OPTIONAL)
K5
RELAY, SIGNAL LIGHTS
(OPTIONAL)
30
87
87a
X1
X1
G
G
LP9
CURB LAMP
(OPTIONAL)
LP9
CURB LAMP
(OPTIONAL)
1
2
M
M4
MISTING PUMP
(OPTIONAL)
M
M4
MISTING PUMP
(OPTIONAL)
-
+
LP4
LAMP, RIGHT REAR SIGNAL
(OPTIONAL)
LP4
LAMP, RIGHT REAR SIGNAL
(OPTIONAL)
BLK
WHT
1
2
3
4
LP7
LAMP, LEFT REAR SIGNAL
(OPTIONAL)
LP7
LAMP, LEFT REAR SIGNAL
(OPTIONAL)
BLK
WHT
LP14
LAMP, DOME
(CAB OPTION)
LP14
LAMP, DOME
(CAB OPTION)
1
2
LP8
LAMP, LEFT REAR TAIL/BRAKE
(OPTIONAL)
LP8
LAMP, LEFT REAR TAIL/BRAKE
(OPTIONAL)
BLK
RED
WHT
P2
GAUGE, FUEL
P2
GAUGE, FUEL
1
S
3
I
1
2
3
4
A5
SENSOR, GASOLINE
(GM ENGINE)
1
2
3
4
A5
SENSOR, GASOLINE
(GM ENGINE)
X1
X1
D
D
K9
RELAY, CONDENSOR FAN
K9
RELAY, CONDENSOR FAN
F1
FUSE, 1A.
F1
FUSE, 1A.
1
2
M
M7
MOTOR, DEFROSTER FAN
(CAB OPTION)
M
M7
MOTOR, DEFROSTER FAN
(CAB OPTION)
-
+
K5
RELAY, SIGNAL LIGHTS
(OPTIONAL)
K5
RELAY, SIGNAL LIGHTS
(OPTIONAL)
X1
X1
B
B
K9
RELAY, CONDENSOR FAN
K9
RELAY, CONDENSOR FAN
30
87
87a
LP2
HEAD LIGHT, LEFT
LP2
HEAD LIGHT, LEFT
1
2
K3
RELAY, SHAKER
K3
RELAY, SHAKER
30
87
87a
A
B
C
D
S25
SWITCH, HAZARD
(OPTIONAL)
S25
SWITCH, HAZARD
(OPTIONAL)
3
6
2
5
1
2
CB9
CIRCUIT BREAKER, 20 A.
CB9
CIRCUIT BREAKER, 20 A.
1
2
LP5
LAMP, RIGHT REAR TAIL/BRAKE
(OPTIONAL)
LP5
LAMP, RIGHT REAR TAIL/BRAKE
(OPTIONAL)
BLK
RED
WHT
CB1
CIRCUIT BREAKER, 70 AMP
CB1
CIRCUIT BREAKER, 70 AMP
1
2
CB8
CIRCUIT BREAKER, 10 A.
(OPTIONAL)
CB8
CIRCUIT BREAKER, 10 A.
(OPTIONAL)
1
2
X1
X1
H
H
1
2
CB7
CIRCUIT BREAKER, 20 A.
(OPTIONAL)
CB7
CIRCUIT BREAKER, 20 A.
(OPTIONAL)
1
2
E13
FLASHER
(OPTIONAL)
E13
FLASHER
(OPTIONAL)
L
X
R1
SENDER, OIL PRESSURE
R1
SENDER, OIL PRESSURE
1
2
56507376-I Sheet 1 of 3
Summary of Contents for 56507009
Page 5: ...FORM NO 56043129 SR 1900 5...
Page 64: ...64 FORM NO 56043129 SR 1900 THIS PAGE IS INTENTIONALLY BLANK...
Page 76: ...76 FORM NO 56043129 SR 1900 ENGINE HARNESS FOR GM 1 6L GAS Petrol Tier 3 ELECTRICAL SYSTEM...
Page 77: ...FORM NO 56043129 SR 1900 77 ELECTRICAL SYSTEM ENGINE HARNESS FOR GM 1 6L LPG Tier 3...