JLG 3246ES Service Manual - Manual (Page 135)

SECTION 5 - JLG CONTROL SYSTEM
3121166 – JLG Lift – 5-15
3 2 CONTACTOR DRIVER PERMANENTLY ON
The Power Module’s Line Contactor Drive Circuitry failed to de-
energize during power-up self-tests.
The Power Module is reporting a “Contactor Driver 1 Perma-
nently On” Fault Code (23d). Refer to CANbus documentation
for Power Module Message – Status.
Drive, Steer, & Lift Up Prevented.
Refer to CANbus documentation
for Power Module Message -
Status.
Help messages with the 3-3 flash code indicate an output driver problem.
NOTE: Certain output driver problems cannot be detected because stimulation of the load could result in safety con-
cerns or annoyance (brake open circuit, lift down open circuit, ground alarm open circuit). 3-3 help messages
shall be latched until the next power cycle.
3 3
BRAKE SHORT TO BATTERY
Voltage was detected on the brake solenoid when the output
driver was commanded off during power-up.
Brake INPUT driven Low AND Brake STAT detected Low during
power-up.
Drive, Steer, & Lift Prevented.
3 3 BRAKE OPEN CIRCUIT
Current flow to the brake solenoid was not detected during
normal brake operation.
Brake INPUT driven High (normal operation) AND Brake STAT
detected Low.
Drive & Steer Prevented
3 3 LIFT UP SHORT TO BATTERY
Voltage was detected on the lift up solenoid when the output
driver was commanded off during power-up.
Lift Up INPUT driven Low AND Lift Up STAT detected Low during
power-up.
Drive, Steer, & Lift Up Prevented.
3 3 LIFT UP OPEN CIRCUIT
Current flow to the lift up solenoid was not detected during
power-up.
Lift Up INPUT driven High (momentarily) AND Lift Up STAT
detected Low during power-up.
No motion interlocks.
3 3 LIFT DN SHORT TO BATTERY
Voltage was detected on the lift down solenoid when the out-
put driver was commanded off during power-up.
Lift Down INPUT driven Low AND Lift Down STAT detected Low
during power-up.
No motion interlocks.
3 3 LIFT DN OPEN CIRCUIT
Current flow to the lift down solenoid was not detected during
normal lift down motion.
Lift Down INPUT driven High (normal operation) AND Lift
Down STAT detected Low.
Lift Up Prevented.
3 3 STEER LEFT SHORT TO BATTERY
Voltage was detected on the steer left solenoid when the out-
put driver was commanded off during power-up.
Left Turn INPUT driven Low AND Left Turn STAT detected Low
during power-up.
Drive & Steer Prevented.
Table 5-2. Flash Code Listing
Flash
Code
Help Message Cause Possible Resolve