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).
Fluid Locations
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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 ...
Combination Light Switch Test/Replacement
Remove the steering column covers.
Disconnect the 12P connector (A) from the combination light switch (B).
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