JLG 15VPSP Service Manual - Manual (Page 57)

SECTION 3 - TROUBLESHOOTING
3120728 – JLG Lift – 3-3
Table 3-1. MC-1 WARNING CODES
(Indicated by 3 beeps, then slow flashing LED’s)
WARNING
CODE
LED’S
FLASHING
PROBABLE CAUSE REMEDY
0 10
Enter Code - Security Code has been activated and
must be entered before operation Enter Code or deactivate using MC-1 configuration
software.
1 8 Charger Connected Unplug Charger
3 2
Brake Status Switch Open - Parking brake manually
released Reset Parking Brake
3 2
Brake manual release lever obstructed (located at
drive motor brake) Clear obstruction and reset lever
3 2
Defective parking brake status switch (located at
drive motor brake) Replace Switch
3 2
Defective pin 11 at X105 (BRN wire) connection or
improper wiring Properly attach wires or pin
3 2 Improper wiring at parking brake status switch Properly attach wires
3 2
Improper wiring from parking brake status switch to
ground Properly attach wires
4 5
Configuration Lost - Drive Characteristic has
changed Reprogram using MC-1 software
5 6
Current Measurement faulty - Drive characteristic
may have changed Cycle on-off and reprogram if necessary
6 7 High Temperature in controller Reduce power
7 7 Motor Stalled Check drive wheels and motors
9 1 Battery Low ( < 18v) and power reduced Charge Batteries
12 9 Speed Control Potentiometer defective Replace Joystick
13 4
Drive Cutout Input Open - PHP bar must be down to
drive while elevated Lower PHP
13 4
PHP bar is down, but drive is disabled - Defective wir-
ing at D-connector Properly attach wire (RED/BLU) or pin 12 of X105
connector
13 4
PHP bar is down, but drive is disabled - Defective
ground wiring Properly attach wires
14 3
PHP bar is down, but drive is disabled - Defective
switch Replace switch
14 3 Tilt Switch open - Slope greater than 2 degrees Lower Platform and move to level ground
14 3
No Tilt Switch - open circuit at Pin 2 of X101 (WHT
wire) Properly attach pin or wire connections
14 3 No Tilt Switch - open circuit to ground Check ground wire connections (BLK1 wire)
25 ---- Joystick E. Stop Counter Controller Log Only
26 ---- Configuration Access Counter Controller Log Only