ASE A2 Automatic Transmission/Transaxle Practice Tests: 3 Practice Tests and 135 Questions
A2
135
Transmission/Transaxle Diagnosis | Verifying concerns, fluid checks, road tests, hydraulic pressure and stall tests, torque converter and TCC diagnosis, scan-tool data, DTCs and electronic control circuits (58%)
In-Vehicle Maintenance and Repair | Shift linkage and range sensors, seals and gaskets, coolers, valve bodies, accumulators and servos, mounts, and fluid and filter service (27%)
Unit Removal, Inspection, and Installation | Removal and installation, flexplate and converter checks, pumps, end play, planetary sets, clutch packs, one-way clutches and bands (15%)
Transmission/Transaxle Diagnosis
Scan data at a steady cruise show the TCC commanded on, but engine speed does not drop and TCC slip stays near 300 rpm. What could be the cause?
Engine coolant temperature too low for lock-up
A brake switch signal showing the brake applied
A worn converter clutch or low TCC apply pressure
The transmission is in a gear where lock-up is not permitted
C
The TCM is already commanding lock-up, so the inputs that enable it are satisfied. Continued slip means the clutch itself is not holding, because of worn friction material or low apply pressure. Low coolant temperature, a brake signal or a non-lock-up gear would all stop the command.
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Course Content
Supporting Resources
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ASE Automotive A2 – Automatic Transmission Practice Test #1
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ASE Automotive A2 – Automatic Transmission Practice Test #2
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Exam Mode: ASE Automotive A2 – Automatic Transmission Practice Test #3
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