JLG M600 Service Manual - Manual (Page 187)

SECTION 6 - JLG CONTROL SYSTEM
3121813 – JLG Lift – 6-21
9/9 Flash code 9/9 indicates problems with the controller.
POWER MODULE FAILURE: CONTACTOR DRIVE CODE 1
A contactor remained energized when turned off.
POWER MODULE FAILURE: HWFS CODE 2
The hardware fail-safe tests did not complete because traction point A is not safe, or the hardware fail-safe is permanently tripped.
POWER MODULE FAILURE: HWFS CODE 3
The hardware fail-safe tests did not complete because a contactor was energized when all should be turned off.
POWER MODULE FAILURE: HWFS CODE 4
The hardware fail-safe tests did not complete because the hardware fail-safe tripped immediately when the traction MOSFETs were
turned on.
POWER MODULE FAILURE: HWFS CODE 10
The hardware fail-safe tests failed because the hardware fail-safe did not trip within the allowed test time.
POWER MODULE FAILURE: HWFS CODE 11
The hardware fail-safe tests failed because the hardware fail-safe tripped too slowly.
POWER MODULE FAILURE: HWFS CODE 12
The hardware fail-safe tests failed because the hardware fail-safe tripped too quickly.
9/9 Flash code 9/9 indicates problems with the controller. (continued)
POWER MODULE FAILURE: HWFS CODE 13
The hardware fail-safe tests failed because the hardware fail-safe remained tripped when the traction MOSFETs were turned off.
POWER MODULE FAILURE: HWFS CODE 14
The hardware fail-safe tests failed because the line contactor could still be energized when the hardware fail-safe was tripped.
POWER MODULE FAILURE: HWFS CODE 15
The hardware fail-safe tests failed because the contactor drive fail-safe did not trip within the allowed test time.
POWER MODULE FAILURE: HWFS CODE 16
The hardware fail-safe tests failed because the contactor drive fail-safe tripped too slowly.
POWER MODULE FAILURE: HWFS CODE 17
The hardware fail-safe tests failed because the contactor drive fail-safe tripped too quickly.
POWER MODULE FAILURE: HWFS TEST STALLED
The hardware fail-safe tests did not complete, but no reason can be determined.
POWER MODULE FAILURE: BAD TEMPERATURE SENSOR
The temperature sensor measurement is invalid; this is probably due to a disconnected wire within the power module. The possibility
of other disconnected wires (which could cause dangerous system function) means that the controller is shut down.
POWER MODULE FAILURE: S/C LINE CONTACTOR DRIVER
The line contactor energized when the footswitch was closed, before it was turned on; this is probably due to a failed driver within the
power module, although it could be due to bad power module wiring.
Table 6-5. Help Descriptions and Fault Flash Codes