JLG 1230ES, Service And Maintenance Manual

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SECTION 8 - DIAGNOSTIC TROUBLE CODES
8-14 – JLG Lift – 3121222
4-4 Battery Supply
DTC FAULT MESSAGE DESCRIPTION CHECK
441
BATTERY VOLTAGE TOO
LOW - SYSTEM SHUT-
DOWN
The power module momen-
tarily measured battery voltage
under 14.5V between ground
board J1-39 and ground board
J1-40. • Recharge batteries or check for damaged batteries.
• Check battery charger function.
442 BATTERY VOLTAGE TOO
HIGH - SYSTEM SHUT-
DOWN The power module momen-
tarily measured battery voltage
> 37.0V. • May be due to improper battery charging or incorrect voltage batteries
being used.
443
LSS BATTERY VOLTAGE
TOO HIGH
The load sensing system mod-
ule momentarily measured bat-
tery voltage > 34.0V. • May be due to improper battery charging or incorrect voltage batteries
being used.
• Refer to Section 2.3: Troubleshooting in the LSS manual, 3124288.
444
LSS BATTERY VOLTAGE
TOO LOW
The load sensing system mod-
ule momentarily measured bat-
tery voltage < 9V. • Recharge batteries or check for damaged batteries.
• Refer to Section 2.3: Troubleshooting in the LSS manual, 3124288.
446
LOGIC SUPPLY VOLTAGE OUT OF
RANGE
The system module logic supply
voltage was measured to be out
of normal operating range by
the interface PCB (<11V). • This may be caused by a loose battery terminal, severely discharged bat-
teries, damaged battery, or an improper wire harness connection.
• Drive, Steer, and Lift Prevented
• ZAPI - HEALTH (Status LED) - ON
4421
LOGIC SUPPLY VOLTAGE OUT OF
RANGE
The system module logic supply
voltage was measured by the
power PCB to be more than 34V
for 10uS.
• This may be caused by a loose battery terminal, severely discharged bat-
teries, damaged battery, or an improper wire harness connection.
• Drive, Steer, and Lift Prevented
• ZAPI - HEALTH (Status LED) - ON
4422
LOGIC SUPPLY VOLTAGE OUT OF
RANGE
The system module logic supply
voltage was measured by the
power PCB to be less than 11V
for 10uS. • This may be caused by a loose battery terminal, severely discharged bat-
teries, damaged battery, or an improper wire harness connection.
• Drive, Steer, and Lift Prevented
• ZAPI - HEALTH (Status LED) - ON
6-6 Communication
DTC FAULT MESSAGE DESCRIPTION CHECK
661
CANBUS FAILURE -
POWER MODULE
The control system failed to
receive messages from the
power module.
• Check for 24V between power module 12 position connector terminal 1
and the power module B- terminal. If this is the problem, the line contac-
tor may be cycling on and off, making a clicking noise when the machine
is powered.
• Disconnect ground board J1 and power module connector. Ground board
socket J1-31 to power module connector socket 10 should have continu-
ity. Ground board socket J1-32 to power module connector socket 11
should have continuity.
• Turn on machine in platform mode. If DTC 662 is present, troubleshoot
that DTC before continuing.