JLG 1230ES Service Manual - Manual (Page 136)

SECTION 8 - DIAGNOSTIC TROUBLE CODES
8-4 – JLG Lift – 3121222
9971 POWER MODULE FAILURE - INTERNAL ERROR.....................................................................................................9-20
99143 POWER MODULE FAILURE - INTERNAL ERROR...................................................................................................9-20
99144 POWER MODULE FAILURE - INTERNAL ERROR...................................................................................................9-20
99145 POWER MODULE FAILURE - INTERNAL ERROR...................................................................................................9-21
99146 POWER MODULE FAILURE - INTERNAL ERROR...................................................................................................9-21
99147 POWER MODULE FAILURE - INTERNAL ERROR...................................................................................................9-21
99148 POWER MODULE FAILURE - INTERNAL ERROR...................................................................................................9-21
99149 POWER MODULE FAILURE - INTERNAL ERROR...................................................................................................9-21