DTC C1984: Brake Maintenance Mode

DTC detecting condition: 

This malfunction is stored when the brake maintenance mode is in progress.

Trouble symptom: 

• AVH does not function. (Models with EyeSight)
• Parking brake system does not operate.

1. CHECK ELECTRONIC PARKING MODE. 

   Is the brake maintenance mode in progress?

   Yes:  Currently, it is normal. Although DTC C1984 is input during the brake maintenance mode, it is normal. Refer to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U)>MAINTENANCE MODE>BRAKE MAINTENANCE MODE .

   No:  Go to  2.

2. CHECK OPERATION OF ELECTRONIC PARKING BRAKE. 
   1. Perform the Clear Memory Mode. Refer to VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)>CLEAR MEMORY MODE .
   2. Apply the electronic parking brake several times.
   3. Read the DTC. Refer to VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)>READ DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC stored even though the electronic parking brake operates?

   Yes:  Replace the VDC Control Module & H/U. Refer to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U) .

   No:  Go to  3.

3. CHECK DETECTION OF OTHER DTCS FOR VDC. 

   Refer to VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)>READ DIAGNOSTIC TROUBLE CODE (DTC) .

   Is any other DTC displayed?

   Yes:  Perform the diagnosis according to DTC. Refer to VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)>LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . Perform the diagnosis from step 1 again, and if the same DTC is stored, replace the VDC Control Module & H/U. Refer to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U) .

   No:  Currently, it is normal. There may have been a temporary poor contact in the harness and connector or a temporary noise interference.