Electronic Brake Control Module: Service and Repair

ABS Modulator-Control Unit Removal and Installation

NOTE:
^ Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid gets on the paint, wash it off immediately with water.
^ Be careful not to damage or deform the brake lines during removal and installation.
^ To prevent the brake fluid from flowing, plug and cover the hose ends and joints with a shop towel or equivalent material.

Removal
1. Pull up the lock (A) of the ABS modulator-control unit 25P connector (B), and the connector disconnects itself.





2. Disconnect the six brake lines from the ABS modulator-control unit (C).
3. Remove the five 6 mm bolts and the one hex bolt.
4. Remove the ABS modulator-control unit.

Installation
1. Install the ABS modulator-control unit, then tighten the five 6 mm bolts and the one hex bolt.
2. Reconnect the six brake lines, then tighten the flare nuts to the specified torque.
3. Align the connecting surface of the ABS modulator-control unit 25P connector to the ABS modulator-control unit.
4. Push in the lock (A) of the ABS modulator-control unit 25P connector (B) until you hear it click into place.





5. Bleed the brake system, starting with the front wheels.
6. Start the engine, and check that the ABS indicator goes off.
7. Test-drive the vehicle, check the ABS operation, and check that the ABS indicator does not come on.
8. If the brake pedal is now spongy, there may be air trapped in the modulator and then induced into the normal brake system during modulation. Exercise the ABS then bleed the brake system again, starting with the front wheels.