Brake Light Switch

Fully depress brake pedal. Reset adjustable plunger by pulling on plunger head until plunger reaches end of travel. Release brake pedal. Gently pull back on brake pedal until pedal will go no further. This causes the brake light switch plunger to ratchet backward to the correct position. No further adjustment is required. Damage to booster may occur if pedal pull exceeds 20 lbs.