Test J: DTC C1989: Park Brake Apply And Release Switch Contacts Energized Simultaneously

PINPOINT TEST J: DTC C1989: PARK BRAKE APPLY AND RELEASE SWITCH CONTACTS ENERGIZED SIMULTANEOUSLY

J1-J2:

Normal Operation
The electronic parking brake (EPB) 2-way motor receives power from circuit 32-CG19 (WH/VT) or 33-CG19 (YE/VT), depending on the direction of the motor revolution. When the EPB is applied, circuit 32-CG19 (WH/VT) is equal to the battery voltage and circuit 33-CG19 (YE/VT) is equal to 0 volts. When the EPB is released, 32-CR19 (YE/VT) is equal to 0 volts and 33-CT19 (YE/VT) is equal to battery voltage. Otherwise, both circuits are at one half of the battery voltage.

Possible Causes
- 8-CG15 (WH/BU) short
- 10-CG15 (GY/VT) short
- 9-CG20 (BN/WH) short
- EPB switch
- EPB module