Checks / troubleshooting:
Thermistor or Heater’s connector may be
disconnected, wiring may be faulty, or Thermistor
cable maybe nipped by plates, or Heater may be
damaged.

Recommended actions:
1. Plug Thermistor or Heater’s connector
properly.
2. Check the connections of HEATER RELAY
board.
3. Replace HEATER RELAY board and
HEATER CONT board.