Lull 944E-42 Service Manual - Manual (Page 634)

Electrical System
9.124 Model 644E-42/944E-42 Rev. 6/04
9.8.43 Roadlight Low Beam Lights Circuit & Troubleshooting (Option)
Schematic is drawn with the ignition switch in the RUN position.
1
A
B
C
D
E
F
G
PS1B
ROADLIGHT
FEMALE AND MALE
CONNECTORS
B
C
D
E
F
G
A
1
3
5
10
9
11
6
8
RL1
B
A
C
D
PS1A
175
LP4A
PS1
PS1A
LP4A
RL1
PS1
LEFT
FRONT
ROADLIGHT
SIDE LT IND
LOW
BEAM
HIGH
BEAM
RIGHT
FRONT
ROADLIGHT
SIDE LT IND
LOW
BEAM
HIGH
BEAM
6
1
2
4
3 6 2
4
3
1
2 2 4 4
3
180
GROUND
BUSS BAR
165
PS1B PS1C
PS1D PS1E
PS1F
PS1D
3 1
PS1C
EG7
RLG2
RLG2
RLG1
RLG1
RLG4
RLG3
RLG4 RLG3
IND BRK
RIGHT
TAILLIGHT
BRK IND
LEFT
TAILLIGHT
PS1F
PS1E
TURN SIGNAL
CONTROL SELECTOR
SW4
SW3
SW2
SW1
9
8
6
1
3
5
11
10
1
P
O
R
L
1
P
O
High Beam
High Beam
Flash
Low Beam
LB1
LB1 LB1A
135
LB1A
LB1B LB1C
F25 40
LIGHTS MAIN
(OPTION)
Y
F26 25
CONDENSER FAN
(OPTION)
Z
FJ21
28
FJ21
FJ20
26
FJ19
25
AA 27
AB 28
F27
OPEN
F28
OPEN
F1 40
OPEN CAB
VEHICLE MAIN
F2 15
IGNITION
CONTROL
BA1A
10
PB2A
2
PB2
IG1
PB1
To
Park Brake
Switch
BA3
BC1A
FJ15
20
FJ16
21
F20 10
BEACON/STROBE
(OPTION)
T
F21 7.5
BRAKE LIGHTS
(OPTION)
U
F22 20
HEADLIGHTS
(OPTION)
V
F23 15
TURN SIGNALS
(OPTION)
W
F24 20 or 30
WORK/ROADLIGHTS
OR WORKLIGHTS
(OPTION)
X
LP5
FJ18
23
24
FJ17
22
LP6
LP1
OPTION
HARNESS
LP6
LP5
LP4 LP2 LP3
To
Back-Up
Alarm Relay
7 8 9 13 12 10 11 14
INSTRUMENT
PANEL
J7
BA
CK LIGHT
J8
GR
OUND
J9
PO
WER
J13
ACCUJMULA
TOR
BRAKE PRESSURE ST
ABIL-TRAK
SLO
W PIV
O T MODE
J12
TURN SIGNAL (OPTIONAL)
J10
ENGINE PRE-HEA
T
(OPTIONAL)
J11
HIGH BEAM (OPTIONAL)
J14
LIGHT
POWER
RELAY
87A 87
30
86
85
B
A
C
D
IGNITION
SWITCH
ACC IGN
B+
OFF
ACC
IGN
ST
To
Ignition
Relay
To
Ignition
Relay
To Closed
Cab Main
(Option) Fuse
BC1A
B
A
1
C
A
B
POWER
MALE
CONNECTOR
12V BUSS BAR
A
B
C BA1
BB1
BC1
POWER
FEMALE
CONNECTOR
STARTER
GND (-)
+
+
-
BATTERY 1
ENGINE
BLOCK
MU3271
Refer to
page 9.48
Refer to
pages 9.52
or 9.54