Brake System

Repair Procedures of ABS Control Module

25steps
~150min
5/5difficulty
0102030405016.712N·mlb·ft
Tightening torque found on this page
Done 0 of 25

Removal [LH]

  1. Turn the ignition off.
  2. Pull up the HECU connector lock (A), and then disconnect the connector.
  3. Remove the brake fluid from the master cylinder reservoir using a syringe.
  4. Disconnect the brake tubes from the HECU by turning the nuts counterclockwise using a flare nut wrench.

    Tightening torque: 12.7 - 16.7 N·m

  5. Loosen the HECU bracket nuts (A), then remove the HECU and bracket.

    Tightening torque: 16.7 ~ 26 N·m

  6. Remove the 3 bolts and remove the bracket from the HECU.

    Tightening torque: 7.8 ~ 9.8 N·m

Removal [RHD]

  1. Turn the ignition switch OFF and disconnect the negative (-) battery cable.
  2. Remove the battery. (Refer to Engine Electrical System - "Battery")
  3. Remove the ECM. (Refer to Engine Control/Fuel System - "Engine Control Module")
  4. Pull up the HECU connector lock (A), and then disconnect the connector.
  5. Remove the brake fluid from the master cylinder reservoir using a syringe.
  6. Disconnect the brake tubes from the HECU by turning the nuts counterclockwise using a flare nut wrench.

    Tightening torque: 12.7 - 16.7 N·m

  7. Loosen the HECU bracket nuts (A), then remove the HECU and bracket.

    Tightening torque: 16.7 ~ 26 N·m

  8. Remove the 3 bolts and remove the bracket from the HECU.

    Tightening torque: 7.8 ~ 9.8 N·m

Installation

  1. Install in the reverse order of removal.
  2. Tighten the HECU mounting bolts and nuts to the specified torque.
  3. After installation, bleed the brake system. (Refer to ABS Bleeding)
  4. Always perform variant coding when replacing the HECU.

Variant Coding

  1. Connect GDS to the data link connector.
  2. Turn the ignition on.
  3. Select the vehicle name and system.
  4. Select the variant coding option.
  5. Perform variant coding according to the on-screen instructions.
  6. Turn the ignition OFF, and then turn the ignition ON.
  7. Variant coding is complete.

Test yourself

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