JLG 10VP Service And Maintenance Manual page 65

ERROR LED'S
CODE FLASHING
26 6
26 6
26 6
26 6
26 6
27 6
27 6
27 6
27 6
28 6
29 6
31 6
32 1
32 1
35 8
35 8
35 8
35 8
36 6
38 6
39 6
3120728
Table 3-2. MC-1 ERROR CODES
(Indicated by rapid LED flashing and periodic beep)
PROBABLE CAUSE
If voltage @ pin 5 (RED2) of X101 is 20v w/24v @ Battery or if ground controls and operating lift up clears
error:
Defective main contactor
Battery cables loose or corroded
If 0v @ pin 5 of X101, check connection @ pin 7 &
14 of X102
Connection @ pin 5 of X101 bad
Defective Power Relay
Defective Power Relay ground wire
Safety Circuit - Joystick - check pin 6 @ X102 (Red
Wire)
Safety Circuit - Joystick - check pin 3 @ joystick
connector (Red Wire)
Defective Joystick - Normal voltage @ pin 6 of X102
(Red Wire): Joystick centered 5v, Joystick not cen-
tered 0v
Safety Circuit - Defective Controller
Current Measurement
Drive Circuit Left - Defective Controller
Drive Circuit Right - Defective Controller
Output driver defect - check for short in Hourmeter,
Horn, Alarm or Power Relay
Output Driver Defective - Defective Controller
Communication Error - Check Pins 5 & 13 of X102
(Orange & Blue Wires)
Communication Error - Check Pins 4 & 5 at Joystick
(Orange & Blue Wires)
Defective Joystick
Defective Controller
Watch Dog
EEPROM
Software Error
SECTION 3 - TROUBLESHOOTING
Replace main contactor
Clean & tighten battery cables
Properly attach wires or pins
Properly attach wires or pins
Replace Relay
Properly attach wire
Properly attach wire or pin
Properly attach wire or pin
Replace Joystick
Replace Controller
Replace Controller
Replace Controller
Replace Controller
Replace defective component
Replace Controller
Properly attach wires or pins
Properly attach wires or pins
Replace Joystick
Replace Controller
Replace Controller
Replace Controller
Replace Controller
– JLG Lift –
REMEDY
3-5