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Home >> Audi >> 2009 >> Q5 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> 45 Antilock Brake System >> Control Module And Hydraulic Unit >> Overview - Control Module And Hydraulic Unit
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Overview - Control Module And Hydraulic Unit

Fig 1: ABS Hydraulic Unit With ABS Control Module Assembly Overview
GWWA45-10101Courtesy of AUDI OF AMERICA, LLC
  1. ABS Hydraulic Unit -N55- with ABS Control Module -J104-
    • Installed location: in the front left engine compartment.
    • Refer to ABS Control Module -J104- /ABS Hydraulic Unit -N55-, REMOVING AND INSTALLING .
    • The hydraulic control unit consists of ABS Hydraulic Unit -N55- with integrated Brake Pressure Sensor 1 -G201- and the ABS Control Module -J104-.
    • Do not disconnect the connector before successfully completing OBD.
    • Switch the ignition off before disconnecting the connector.
      CAUTION:

      ABS Hydraulic Unit -N55- and ABS Control Module -J104- must not be disconnected from each other.

  2. Bracket
    • Cannot be removed.
  3. Connector
    • For ABS Control Module -J104-
  4. Brake Line
    • To the brake master cylinder
  5. Brake Line
    • To the brake master cylinder
  6. Brake Lines
    • Hydraulic unit to right front brake caliper
    • Hydraulic unit to left front brake caliper
    • Hydraulic unit to left rear brake caliper
    • Hydraulic unit to right rear brake caliper