JLG 20VP (3120728) Service Manual - Manual (Page 72)

SECTION 3 - TROUBLESHOOTING
3-12 – JLG Lift – 3120728
Figure 3-5. VP Electrical Diagram. (with UL-EE Approved Option)
X102 X103
X105 X101 X104
END VIEW OF MC-1 BOX
SHOWING X CONNECTOR LOCATION
HORN
RELAY
X101
B+
B+ CONTROL
MAIN POWER DISCONNECT
ELEVATION SWITCH
TILT CUTOUT
CHARGER INTERLOCK
B– PIN
A1
3
5
1
2
4
A2
X102
B+
EMERGENCY STOP
CAN-LO
CAN-HI
CENTER DETECT
B–
EMERGENCY STOP PIN
15
14
13
5
6
1
7
X103 – LEFT MOTOR
MOTOR 1
MOTOR 2
BRAKE 1
BRAKE2 PIN
A1
A2
5
3
X104 – RIGHT MOTOR
MOTOR 1
MOTOR 2
BRAKE 1
BRAKE 2 PIN
A1
A2
5
2
X105
RX DO
TX DO
GROUND
LIFT UP
LIFT DOWN
PUMP CONTACTOR
DRIVE CUTOUT
BRAKE STATUS
HORN
ALARMS
HOURMETER PIN
7
8
13
4
6
5
12
11
15
14
3
PINS USED FOR
COMMUNICATION
TO SERIAL PORT
ON LAPTOP OR PC.