DTC C1985: Forbidden State Of Dynamic Actuator Operation

DTC detecting condition: 

This malfunction is stored if dynamic parking through the electronic parking brake actuator does not operate.

Trouble symptom: 

Parking brake system does not operate.

1. CHECK DETECTION OF OTHER DTCS FOR VDC  .

   Read the DTC of [Brake Control] using the Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) 

   Is any other DTC displayed?

   Yes  : Perform the diagnosis according to the DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST 

   NOTE:

   This DTC is stored for other malfunctions. 

   No  : Go to  2.

2. CHECK OPERATION OF ELECTRONIC PARKING BRAKE  .
   1. Using the Subaru Select Monitor, perform the clear memory of [Brake Control]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY
   2. Execute the inspection mode. Ref. to BRAKE CONTROL (DIAGNOSTICS)>INSPECTION MODE 

   Does it operate properly?

   Yes  : Currently, it is normal. There may have been a temporary poor contact in the harness and connector or a temporary noise interference.

   No  : Replace the VDC Control Module & H/U. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDC CONTROL MODULE & H/U)