• Code: 1905
• Description: An abnormally low temperature of the PRE HEATERS(64) on the HEATER RELAY BOARD ASSY
  An abnormally low temperature of the PRE HEATERS(64) is detected.
• Remedy: Check whether the PRE HEATERS(64) are properly connected. Check whether the THERMISTOR, PRE(s) is correctly installed. Check whether the THERMISTOR, PRE(s) is properly connected. Check whether the FUSE has blown. If so, replace the FUSE. Replace the HEATER RELAY BOARD ASSY .

• Code: 1906
• Description: An abnormally low temperature of the PLATEN HEATER(64) on the HEATER RELAY BOARD ASSY
  An abnormally low temperature of the PLATEN HEATER(64) is detected.
• Remedy: Check whether the PLATEN HEATER(s)(64) is properly connected. Check whether the THERMISTOR, PLATEN(s) is correctly installed. Check whether the THERMISTOR, PLATEN(s) is properly connected. Check whether the FUSE has blown. If so, replace the FUSE. Replace the HEATER RELAY BOARD ASSY .

• Code: 1907
• Description: An abnormally low temperature of the AFTER HEATER(64) on the HEATER RELAY BOARD ASSY
  An abnormally low temperature of the AFTER HEATER(64) is detected.
• Remedy: Check whether the AFTER HEATER(s)(64) is properly connected. Check whether the THERMISTOR, AFTER(s) is correctly installed. Check whether the THERMISTOR, AFTER(s) is properly connected. Check whether the FUSE has blown. If so, replace the FUSE. Replace the HEATER RELAY BOARD ASSY .

• Code: 1908
• Description: An abnormal voltage of the heater on the HEATER CONT BOARD ASSY
  The voltage of the HEATER CONT BOARD ASSY is abnormally changed.d
• Remedy: Replace the HEATER CONT BOARD ASSY . Replace the P/S BOARD ASSY .

• Code: 1909
• Description: Serial communication failure between the HEATER CONT BOARD ASSY and SUB-B/C BOARD
  The serial communication between the HEATER CONT BOARD ASSY and the SUB_B BOARD ASSY/SUB_C BOARD ASSY cannot be made.
• Remedy: Check whether the serial cable is properly connected. If not, connect it properly.

• Code: 1910
• Description: Insufficient temperature of the PRE HEATERS(64) on the HEATER RELAY BOARD ASSY
  The required temperature of the PRE HEATERS(64) cannot be reached.
• Remedy: Check whether the AC cable for the heater is properly connected. If not, connect the cable properly. Check whether the THERMISTOR, PRE(s) is correctly installed. Check whether the THERMISTOR, PRE(s) is properly connected. Check whether the FUSE has blown. If so, replace the FUSE. Replace the HEATER RELAY BOARD ASSY .

• Code: 1911
• Description: Insufficient temperature of the PLATEN HEATER(64) on the HEATER RELAY BOARD ASSY
  The required temperature of the PLATEN HEATER(64) cannot be reached.
• Remedy: Check whether the AC cable for the heater is properly connected. If not, connect the cable properly. Check whether the THERMISTOR, PLATEN(s) is correctly installed. Check whether the THERMISTOR, PLATEN(s) is properly connected. Check whether the FUSE has blown. If so, replace the FUSE. Replace the HEATER RELAY BOARD ASSY .

• Code: 1912
• Description: Insufficient temperature of the AFTER HEATER(64) on the HEATER RELAY BOARD ASSY
  The required temperature of the AFTER HEATER(64) cannot be reached.
• Remedy: Check whether the AC cable for the heater is properly connected. If not, connect the cable properly. Check whether the THERMISTOR, AFTER(s) is correctly installed. Check whether the THERMISTOR, AFTER(s) is properly connected. Check whether the FUSE has blown. If so, replace the FUSE. Replace the HEATER RELAY BOARD ASSY .