Disconnect the MAP sensor connector (A).

Remove the MAP sensor (B).
Install the parts in the reverse order of removal with a new O-ring (C).
Brake Assist System
■Brake Assist System
Designed to assist the driver by generating greater braking force when you
depress
the brake pedal hard during emergency braking.
■ Brake assist system operatio ...
Brake System Indicator
Brake System Indicator (Red)
The brake system indicator (red) normally comes on when you turn the ignition
switch to the ON (II) position, and as a reminder to check the parking brake. It
will ...
Servo Body Disassembly, Inspection, and Reassembly (A/T)
Clean all parts thoroughly in solvent, and dry them with compressed air.
Blow out all passages.
Inspect the servo body for scoring and damage.
Check all valves for fre ...