Operation CHARM: Car repair manuals for everyone.

Modulator Unit Bleeding (ABS)

Relieving System Pressure

CAUTION:
- Be sure to drain the high-pressure brake fluid completely before performing the modulator function check, disposing the modulator unit, accumulator and ABS pump motor replacement.
- Do not spill brake fluid on the car; it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.
- Do not reuse the drained brake fluid.
- Do not loosen the relief plug on the accumulator
.





1. Remove the bleeder cap from the maintenance bleeder on the modulator unit.

2. Attach a wrench to the maintenance bleeder.

3. Connect a rubber tube of the appropriate diameter to the maintenance bleeder, and set the other end of the rubber tube in a suitable container.

4. While holding the rubber tube with your hand, slowly loosen the maintenance bleeder 1/8 to 1/4 turn to collect the brake fluid in the container.

CAUTION: Do not loosen the maintenance bleeder too much. The high-pressure brake fluid can burst out.

5. Tighten the maintenance bleeder to the specified torque.