Removal and Installation
WARNING:- The modulator unit contains high-pressure brake fluid. Be sure to drain the high-pressure brake fluid completely from modulator unit before performing the modulator function check, disposing of the modulator unit, or replacing ABS pump motor.
- Do not loosen the relief plug on the accumulator.
CAUTION:
- When removing the modulator unit or after removing it, be careful not to turn it upside down or lean it excessively.
- Do not spill brake fluid on the vehicle; it may damage the paint if brake fluid does contact the paint, wash it off immediately with water.
- Take care 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
Modulator Remove & Install:
- Relieve ABS system pressure.
- Disconnect the modulator unit 14P connector and pump motor 2P connector.
- Remove the wire harness clip from the modulator bracket.
- Remove the three 8 mm nuts, and remove the modulator unit from the bracket.
INSTALLATION
Fluid Level Indicator:
1. Check whether the brake fluid level in the reservoir is at the MAX (upper) level. If level is low, add fresh brake fluid to the MAX (upper) level.
Proper Angle:
2. Before installing the modulator unit on the vehicle, be sure to bleed the air from the suction port in the modulator unit by leaning the modulator unit to one side slowly (about 45 degrees) as shown.
Brake Line Placement:
3. Install the modulator unit in the reverse order of removal.
NOTE: Check the letters stamped on the modulator body, and connect the brake lines properly. Tighten the flare nuts.
Specs:
Flare nuts 19 Nm (14 lb.ft.)
4. Start the engine and let it idle for a minute.
Check that:
- ABS indicator light is off.
- Brake fluid is not leaking from the brake line joints.
5. Stop the engine.
6. Check whether the brake fluid level in the reservoir is at the MAX (upper) level. If level is low, add fresh fluid until the reservoir is refilled to the MAX (upper) level.
7. Perform brake bleeding procedures.
8. Perform ABS sunctional checks using the ALB checker.