Hydraulic Control Unit (HCU)

NOTE: The HCU bleeding procedure must be carried out if the HCU or any components upstream of the HCU are installed new.

NOTE: Pressure bleeding the brake system is preferred to manual bleeding.

Follow the Pressure Bleeding or Manual Bleeding procedure steps to bleed the system.
Connect the scan tool and follow the ABS Service Bleed instructions.
Repeat the Pressure Bleeding or Manual Bleeding procedure steps to bleed the system.