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JLG 450AJ:
Shuts down

The unit starts and runs. Can be operated by the ground controls indefinitely it seems however, if the platform controls are operated, the truck will run normally about 30 minutes, operating the boom then I get a flash code of 4,3 on the dash and the unit shuts down. Currently the truck will not restart.
Can anyone help with what a 4,3 flash code is?
  • Posted 18 Jul 2024 23:57
  • Discussion started by SunnyWrench
  • Florida, United States
Working for retirement
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"Remove the coils and ohm out the pins. Coils take a different number than regular 4y plugs... If code is there then it is an ecu issue."
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