ASE BRAKES A5 TEST (EXAM 2) WITH ALL CORRECT &
VERIFIED ANSWERS (UPDATED TO PASS)
The brakes are dragging on a vehicle. this could be cause by
a. overfilled master cylinder reservoir
b. low vacuum to the boost
c. bypassing master cylinder
d. quick take-up valve stuck open Correct answer-A : overfilled master cylinder reservoir
why : an overfilled master cylinder reservoir cylinder would not allow for fluid expansion. this would
cause the brakes to self apply as the fluid expanded as result in brake drag
The brake pads are worn at an angle on a vehicle with a sliding brake caliper system. which of the
following is most likely the cause?
a. worn caliper piston
b. worn caliper bushings
c. leaking caliper seal
d. leaking caliper boot Correct answer-B : worn caliper bushings
why : worn bushings can cause the caliper to cock during operation. this could cause the pads to
wear at an angle
A diagnostic trouble code is set for an open wheel speed sensor on the left front sensor. The
technician measures the resistance at the sensor and finds it to be within specification. Which of the
following is the most likely cause for the wheel speed sensor code?
a. faulty ABS computer
b. open fuse
c. open wiring from the computer to the wheel speed sensor
d. shorted left front ABS modulator valve Correct answer-C : open wiring from the computer to the
wheel speed sensor
why : an open in the wiring from the sensor to the computer would cause a diagnostic trouble code
to be set and the sensor to have the correct resistance
The brake warning lamp pictured above (pg. 56) stays on any time the ignition switch is on. Tech A
says this could be caused by a poor ground at the parking brake switch. Tech B says this could be
caused by a poor ground at the brake warning lamp switch. Who is correct?
a. A only
b. B only
c. A & B
d. neither A or B Correct answer-D : neither A or B
why : neither technician is correct. there is a ground present at all times to cause the light to be on all
the time
Which of the following is true concerning the above caliper? ( pg. 57 )
, a. this caliper incorporates the parking brake
b. this caliper can only be used on the front
c. this caliper can only be used with Type 5 brake fluid
d. this caliper must be replaced at each brake pad replacement Correct answer-A : this caliper
incorporates the parking brake
why : ^^^
Tech A says a double flare line should be replaced with an ISO flare line. Tech B says an ISO flare line
should be replaced with a double flare line. Who is correct?
a. A only
b. B only
c. A & B
d. neither Correct answer-D : neither
why : neither technician is correct
While testing the system shown above ( pg. 58 ), the technician finds there is no assist from the
booster after the engine is shut off. Which of the following is the most likely correct?
a. a faulty back-up EH pump
b. a faulty accumulator
c. a bypassing master cylinder
d. a bypassing brake booster Correct answer-A : a faulty back-up EH pump
why : the accumulator could be faulty and not storing pressure
A customer is concerned that under heavy acceleration on dry pavement the traction control light
comes on and the throttle momentarily becomes unresponsive. Which of the following is the most
likely cause?
a. a tire has lost traction
b. the accelerator pedal position (APP) sensor is faulty
c. the throttle position sensor (TPS) is faulty
d. a wheel speed sensor is faulty Correct answer-A : a tire has lost traction
why : when a tire loses traction the control module will reduce power from the engine in an attempt
to regain traction. This can result in the customer sensing that the throttle is unresponsive
A vehicle has a low brake pedal. Master cylinder fluid level is correct. Which of the following is the
most likely cause?
a. worn brake pad lining
b. seized wheel cylinder
c. seized caliper piston
d. brake shoes out of adjustment Correct answer-D : brake shoes out of adjustment
why : when the brake shoes are out of adjustment, the wheel cylinder must push them out further to
contact the drum. the master cylinder will have to be pushed in further to accomplish this and will
result in low pedal
VERIFIED ANSWERS (UPDATED TO PASS)
The brakes are dragging on a vehicle. this could be cause by
a. overfilled master cylinder reservoir
b. low vacuum to the boost
c. bypassing master cylinder
d. quick take-up valve stuck open Correct answer-A : overfilled master cylinder reservoir
why : an overfilled master cylinder reservoir cylinder would not allow for fluid expansion. this would
cause the brakes to self apply as the fluid expanded as result in brake drag
The brake pads are worn at an angle on a vehicle with a sliding brake caliper system. which of the
following is most likely the cause?
a. worn caliper piston
b. worn caliper bushings
c. leaking caliper seal
d. leaking caliper boot Correct answer-B : worn caliper bushings
why : worn bushings can cause the caliper to cock during operation. this could cause the pads to
wear at an angle
A diagnostic trouble code is set for an open wheel speed sensor on the left front sensor. The
technician measures the resistance at the sensor and finds it to be within specification. Which of the
following is the most likely cause for the wheel speed sensor code?
a. faulty ABS computer
b. open fuse
c. open wiring from the computer to the wheel speed sensor
d. shorted left front ABS modulator valve Correct answer-C : open wiring from the computer to the
wheel speed sensor
why : an open in the wiring from the sensor to the computer would cause a diagnostic trouble code
to be set and the sensor to have the correct resistance
The brake warning lamp pictured above (pg. 56) stays on any time the ignition switch is on. Tech A
says this could be caused by a poor ground at the parking brake switch. Tech B says this could be
caused by a poor ground at the brake warning lamp switch. Who is correct?
a. A only
b. B only
c. A & B
d. neither A or B Correct answer-D : neither A or B
why : neither technician is correct. there is a ground present at all times to cause the light to be on all
the time
Which of the following is true concerning the above caliper? ( pg. 57 )
, a. this caliper incorporates the parking brake
b. this caliper can only be used on the front
c. this caliper can only be used with Type 5 brake fluid
d. this caliper must be replaced at each brake pad replacement Correct answer-A : this caliper
incorporates the parking brake
why : ^^^
Tech A says a double flare line should be replaced with an ISO flare line. Tech B says an ISO flare line
should be replaced with a double flare line. Who is correct?
a. A only
b. B only
c. A & B
d. neither Correct answer-D : neither
why : neither technician is correct
While testing the system shown above ( pg. 58 ), the technician finds there is no assist from the
booster after the engine is shut off. Which of the following is the most likely correct?
a. a faulty back-up EH pump
b. a faulty accumulator
c. a bypassing master cylinder
d. a bypassing brake booster Correct answer-A : a faulty back-up EH pump
why : the accumulator could be faulty and not storing pressure
A customer is concerned that under heavy acceleration on dry pavement the traction control light
comes on and the throttle momentarily becomes unresponsive. Which of the following is the most
likely cause?
a. a tire has lost traction
b. the accelerator pedal position (APP) sensor is faulty
c. the throttle position sensor (TPS) is faulty
d. a wheel speed sensor is faulty Correct answer-A : a tire has lost traction
why : when a tire loses traction the control module will reduce power from the engine in an attempt
to regain traction. This can result in the customer sensing that the throttle is unresponsive
A vehicle has a low brake pedal. Master cylinder fluid level is correct. Which of the following is the
most likely cause?
a. worn brake pad lining
b. seized wheel cylinder
c. seized caliper piston
d. brake shoes out of adjustment Correct answer-D : brake shoes out of adjustment
why : when the brake shoes are out of adjustment, the wheel cylinder must push them out further to
contact the drum. the master cylinder will have to be pushed in further to accomplish this and will
result in low pedal
