Unable To Switch Vents

Trouble symptom: 

• Unable to switch blow vents.
• Outlet opening does not switch in the sequence of FACE → B/L → FOOT → F/D after operating the mode switch or mode dial.

Trouble causes: 

Mode door actuator failure

1. CHECK A/C CONTROL PANEL. 
   1. Turn the ignition switch to ON.
   2. Using Subaru Select Monitor, check [Mode Door Actuator Position Target] of the data monitor. Ref. to AIR CONDITIONER(DIAGNOSTICS)>Data Monitor .
   3. Operate the mode change switch.

   Does the value of [Mode Door Actuator Position Target] change along with the operation?

   • Yes  : Go to 2. 
   • No  : Replace the A/C control panel. Ref. to HVAC SYSTEM (HEATER, VENTILATOR AND A/C)>Control Panel>REMOVAL .
2. CHECK DTC. 
   1. Set the mode change switch to DEF, and wait for 16 seconds or more.
   2. Read the DTC using Subaru Select Monitor. Ref. to AIR CONDITIONER(DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

   Is DTC B14E5 or B14E6 displayed?

   • Yes  : Perform the diagnosis for the displayed DTC B14E5 or B14E6. Ref. to AIR CONDITIONER(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B14E5 MODE DOOR ACTUATOR STEPPING MOTOR CIRCUIT OPEN . Ref. to AIR CONDITIONER(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B14E6 MODE DOOR ACTUATOR STEPPING MOTOR CIRCUIT SHORT-CIRCUIT .
   • No  : Go to 3. 
3. CHECK DTC. 
   1. Set the mode change switch to VENT, and wait for 16 seconds or more.
   2. Using the Subaru Select Monitor, read DTC of A/C control panel. Ref. to AIR CONDITIONER(DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

   Is DTC B14E5 or B14E6 displayed?

   • Yes  : Perform the diagnosis for the displayed DTC B14E5 or B14E6. Ref. to AIR CONDITIONER(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B14E5 MODE DOOR ACTUATOR STEPPING MOTOR CIRCUIT OPEN . Ref. to AIR CONDITIONER(DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B14E6 MODE DOOR ACTUATOR STEPPING MOTOR CIRCUIT SHORT-CIRCUIT .
   • No  : The circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis.
   NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.