Seat Heater Does Not Turn Off, Seat Ventilation Operates

Trouble symptom:

The seat heater does not turn off, even if the seat ventilation switch is touched while the seat heater is operating. The ventilation operates.

Trouble causes:

Seat ventilation control module failure
A/C control module failure
Seat ventilation circuit failure
Seat heater circuit failure
Center information display failure
Cockpit control module failure
Seat ventilation blower failure
Seat heater failure

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to VENTILATION SEAT (DIAGNOSTICS)>General Description>CAUTION .

CHECK CONNECTOR .
1. Turn the ignition switch to OFF.
2. Check connecting condition of the seat ventilation control module connector (St41), A/C control module connectors (i107) (i108), seat connectors (L57) (R57), coupling connectors (B43) (L51) (R51) (St21) (St22), heater connectors (St27) (St28), and blower connectors (St71) (St72).
  Is the check result OK?
  
  Yes: Go to 2 .
  
  No: Repair the connector.
CHECK DTC .
1. Turn the ignition switch to ON.
2. Read the following DTCs using Subaru Select Monitor. Ref. to Ventilation Seat (Diagnostics)>Diagnostic Trouble Code (DTC) . Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) . Ref. to AIR CONDITIONER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) . Ref. to COCKPIT CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
  - Ventilation Seat
  - Body Control
  - Air Conditioner
  - Cockpit Control
  Are any DTCs displayed?
  
  Yes: Perform the diagnosis for the displayed DTCs. Ref. to Ventilation Seat (Diagnostics)>Diagnostic Trouble Code (DTC) . Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) . Ref. to AIR CONDITIONER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) . Ref. to COCKPIT CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
  
  No: Go to 3 .
CHECK SEAT HEATER OPERATION .
1. Start the engine.
2. Touch the seat heater switch.
3. After a predetermined period of time, check if the seat heater is operating normally.
  Is the seat heater operation normal?
  
  Yes: Ref. to VENTILATION SEAT (DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION>SEAT VENTILATION CANNOT BE OPERATED .
  
  No: Ref. to VENTILATION SEAT (DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION>SEAT HEATER CANNOT BE OPERATED .