E09 : Heater and Display Communication Malfunction

Check all wiring between the display and the heater control module.


  • Pay close attention to the wire crimping on plug J5/DISPLAY C of temperature control module.
  • Swap J5 of temp control side with J13 on motor control side to see if problem is in the harness/control or display.
    • If E09 remains on the same display, replace the Display
    • If E09 moves to other display then reverse the J13 connections on the display boards to determine if cable or temperature control module is the cause.