ASE A5 CERTIFICATION PRACTICE EXAMINATION – TEST 2
(2025/2026 EDITION) |BRAKE SYSTEMS – ADVANCED
DIAGNOSIS, HYDRAULIC PERFORMANCE, ABS/ELECTRONIC
CONTROL SYSTEMS, AND INDUSTRY SERVICE PROCEDURES
|OFFICIAL MOCK EXAMINATION PAPER (SET 2 – ADVANCED
LEVEL)
Comprehensive technical assessment in modern automotive braking
technologies Voltage drop testing | short circuit and open circuit
diagnosis
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
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
1|Page
,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
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
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
2|Page
, 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
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
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?
3|Page
(2025/2026 EDITION) |BRAKE SYSTEMS – ADVANCED
DIAGNOSIS, HYDRAULIC PERFORMANCE, ABS/ELECTRONIC
CONTROL SYSTEMS, AND INDUSTRY SERVICE PROCEDURES
|OFFICIAL MOCK EXAMINATION PAPER (SET 2 – ADVANCED
LEVEL)
Comprehensive technical assessment in modern automotive braking
technologies Voltage drop testing | short circuit and open circuit
diagnosis
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
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
1|Page
,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
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
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
2|Page
, 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
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
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?
3|Page
