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  .
   1. Turn the ignition switch to ON.
   2. Read the DTC using 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. 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 (VDCCM & H/U) .