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 using Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

   Is any other DTC displayed?

   Yes:  Perform the diagnosis according to 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 (diag)>CLEAR MEMORY .
   2. Execute the inspection mode. Ref. to BRAKE CONTROL (DIAGNOSTICS)>INSPECTION MODE .

   Does the parking brake system 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 VDCCM&H/U. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U) .