ASE A5 study plan

ASE A5 · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Hydraulic System Diagnosis and Repair

Trace the complete hydraulic circuit from master cylinder reservoir to each wheel caliper and wheel cylinder, and label every component on a blank diagram from memory.
Measure and record pedal free play, pedal height, and pedal travel on a live vehicle, then compare each reading to specification.
Diagnose three written hydraulic fault scenarios (spongy pedal, low pedal that pumps up, slowly sinking pedal) by naming the probable cause and the specific test that confirms it.
Sequence the bench-bleed procedure for a master cylinder in correct order without reference material, including quick-take-up bore handling.
Distinguish between an internal master cylinder leak, an external leak, and air ingestion by listing the pressure and vacuum symptoms unique to each.

A fully labeled hydraulic circuit diagram plus a 25-question hydraulic quiz scored at 80% or better.

Week 2

Measure rotor thickness, thickness variation, taper, and lateral runout with a micrometer and dial indicator, then make a resurface-or-replace call against specification.
Diagnose brake pull, pedal pulsation, and squeal complaints by mapping each symptom to its disc-brake root cause.
Outline a caliper overhaul sequence that includes piston and seal inspection and states the criteria for rebuild versus replace.
Identify pad wear indicator types, shim placement, and every abutment and slide lubrication point on a floating caliper.

A completed disc-brake inspection worksheet on two vehicles with all measurements recorded and pass/fail verdicts written for each.

Week 3

Measure drum inside diameter, out-of-round, and taper on three drums and compare each reading to the maximum wear specification.
Diagnose shoe wear patterns and explain how self-energizing action differs between the primary and secondary shoe positions.
Evaluate wheel cylinder condition, hardware springs, and self-adjuster operation, and state the replacement criteria for each.
Explain brake fade mechanisms and describe the correct adjustment procedure for a star-wheel self-adjuster.

A drum measurement and wear-pattern worksheet on three drums plus a 20-question drum brake quiz scored at 80% or better.

Week 4

Differentiate vacuum booster operation from hydro-boost operation, listing the input sources and failure symptoms unique to each.
Test a booster check valve, boost hold, and booster seal integrity using vacuum gauge and pedal-hold methods, and interpret each result.
Diagnose a hard pedal, a hissing noise under the dash, and an idle change on brake application by naming the failed component and confirming test.
Trace the hydro-boost circuit through the power steering pump and accumulator and identify the bleed and test sequence.

A 50-question cumulative practice exam covering hydraulics, disc, drum, and power assist, scored at 75% or better.

Week 5

Identify every ABS and traction control system component and describe its function within the control loop.
Test passive and active wheel speed sensors with a multimeter and oscilloscope, and interpret the resulting waveforms.
Diagnose an illuminated ABS warning lamp by sequencing scan tool codes, sensor input verification, and hydraulic modulator checks.
Explain how traction control interacts with ABS and name the conditions that disable each system.

A written ABS diagnostic flowchart plus a 25-question ABS and traction control quiz scored at 80% or better.

Week 6

Inspect, clean, repack, and set wheel bearing preload on a serviceable bearing, and identify the noise signature of a failed bearing.
Test and adjust both integral and separate parking brake systems, including cable stretch and equalizer adjustment.
Measure voltage drop and continuity on the stop lamp, brake warning lamp, and ABS lamp circuits and interpret each reading.
Diagnose a cruise control that will not cancel and a brake light that stays on by tracing the switch circuit.

An electrical test sheet documenting voltage drop and continuity measurements on three brake-related circuits, with pass/fail verdicts.

Week 7

Work through ten timed multi-symptom case scenarios that force a full diagnostic path from complaint to confirmed repair.
Rank your domains by practice-test accuracy and re-drill the two lowest-scoring domains with focused question sets.
Re-derive the measurement limits and specifications you missed on earlier quizzes until recall is immediate.
Practice writing repair recommendations that cite the measurement or test that justified the call.

A scored 50-question practice exam with every missed item rewritten as a corrected one-line rule.

Week 8

Complete two full-length timed practice exams under test-day conditions with no reference material.
Review every missed question and trace the miss back to a specific domain and a specific gap in procedure or specification.
Condense the highest-risk specifications, measurement limits, and diagnostic sequences into a single one-page reference sheet.
Rehearse the final-week routine: sleep schedule, test-day timing, and question-flagging strategy.

Two full-length practice exams scored at 85% or better, plus a completed one-page specification and diagnostics reference sheet.

Week 2: Label the entire hydraulic circuit and make correct resurface-or-replace calls on all measurements taken in weeks 1 and 2.

Week 4: Score 75% or better on a 50-question cumulative exam over the four heaviest domains.

Week 6: Score 80% or better on every domain-specific quiz taken so far, with no domain below 75%.

Week 8: Score 85% or better on two consecutive full-length timed practice exams.