Service Manual Owner's manual

SECTION 8 - DIAGNOSTIC TROUBLE CODES
3121222 – JLG Lift – 8-21
99145 POWER MODULE FAILURE -
INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s enable for the power PCB requested a drive
motor or valve activation when not expected.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
99146 POWER MODULE FAILURE -
INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s lift down feedback voltage to the interface
and power PCB’s disagrees.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
99147 POWER MODULE FAILURE -
INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s VMN feedback voltage to the interface and
power PCB’s disagrees.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
99148 POWER MODULE FAILURE -
INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s setpoint request from the interface PCB
does not match the input state.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
99149 POWER MODULE FAILURE -
INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module encountered an unexpected software issue.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
9-9 Hardware
DTC FAULT MESSAGE DESCRIPTION CHECK