Question 1

The first step in diagnosing an EAT transmission problem is ______.

Accepted Answer

A) connect a scan tool and read DTCs 
B) connect a pressure gauge to the transmission and record line pressure 
C) manually activate shift solenoids with a jumper wire or transmission tester 
D) check the adjustment of the TV (throttle valve)cable 
A) connect a scan tool and read DTCs 
B) connect a pressure gauge to the transmission and record line pressure 
C) manually activate shift solenoids with a jumper wire or transmission tester 
D) check the adjustment of the TV (throttle valve)cable A

Question 2

Which of the following is NOT an advantage of an electronically controlled transmission?

Accepted Answer

A) higher torque capacity 
B) improved fuel economy 
C) lower exhaust emission levels 
D) better shift timing 
A) higher torque capacity 
B) improved fuel economy 
C) lower exhaust emission levels 
D) better shift timing A

Question 3

Technician A says the EPC solenoid is a PWW (pulse width modulated)solenoid and receives a duty cycle signal from the TCM. Technician B says the EPC solenoid is an on/off solenoid that is turned on when the TCM sees the 3-4 upshift. Who is correct?

Accepted Answer

A) A only 
B) B only 
C) both A and B 
D) neither A nor B 
A) A only 
B) B only 
C) both A and B 
D) neither A nor B A

Question 4

PCM input data such as MAP, TP, and engine speed cannot be transferred to the TCM through the vehicle CAN bus.

Accepted Answer

A) True 
 B)False

Question 5

What type of sensor listed here is a potentiometer?

Accepted Answer

A) pressure switch 
B) TFT sensor (transmission fluid temperature) 
C) TSS (turbine speed sensor) 
D) TP (throttle position) 
A) pressure switch 
B) TFT sensor (transmission fluid temperature) 
C) TSS (turbine speed sensor) 
D) TP (throttle position)

Question 6

Computer cleaning spray is a good solvent to use for cleaning electrical terminals and connectors.

Accepted Answer

A) True 
 B)False

Question 7

Two technicians are testing a transmission that has a DTC for a shift solenoid. The coil resistance is within specifications and the solenoid clicks when the coil is energized with jumper wires. Technician A says the solenoid could be leaking internally or externally. Technician B says the valve within the solenoid could be sticking or binding. Who is correct?

Accepted Answer

A) A only 
B) B only 
C) both A and B 
D) neither A nor B 
A) A only 
B) B only 
C) both A and B 
D) neither A nor B

Question 8

Which of the following tools is NOT used to check a TP sensor?

Accepted Answer

A) voltmeter 
B) ammeter 
C) ohmmeter 
D) lab scope 
A) voltmeter 
B) ammeter 
C) ohmmeter 
D) lab scope

Question 9

A computer-controlled transmission that starts out in the wrong gear could be caused by ______.

Accepted Answer

A) faulty solenoids 
B) stuck valves 
C) bad electrical grounds 
D) All the answers are correct. 
A) faulty solenoids 
B) stuck valves 
C) bad electrical grounds 
D) All the answers are correct.

Question 10

Toyota, Ford, and Nissan hybrid systems rely on ____________________ to determine the overall gear ratio of their CVTs.

Accepted Answer

The answer of Toyota, Ford, and Nissan hybrid systems rely...

Question 11

If the crankshaft speed sensor reads 1,650 rpm and the TSS (turbine speed sensor)also reads 1,650 RPM, the torque converter is ______.

Accepted Answer

A) overheating 
B) in a stall condition 
C) slipping 
D) coupled 
A) overheating 
B) in a stall condition 
C) slipping 
D) coupled

Question 12

What is the function of the start clutch in the Honda CVT transaxle?

Accepted Answer

Start clutch is designed to slip just en

Question 13

The dual mode hybrid transmission does not have _____.

Accepted Answer

A) two electric motors 
B) three sets of planetary gears 
C) multiple disc clutches 
D) a metal drive belt and variable pulleys 
A) two electric motors 
B) three sets of planetary gears 
C) multiple disc clutches 
D) a metal drive belt and variable pulleys

Question 14

Hydraulically controlled transmissions rely on signals from the ____________________ and ____________________ to force a shift in gears.

Accepted Answer

governor, throttle v

Question 15

A magnetic pulse generator (PM generator)type sensor is commonly used to measure _____ on an EAT transmission.

Accepted Answer

A) speed (rpm) 
B) temperature 
C) pressure 
D) fluid levels 
A) speed (rpm) 
B) temperature 
C) pressure 
D) fluid levels

Question 16

The TFT sensor is a _____ and its output signal varies with ATF temperature.

Accepted Answer

A) thermistor 
B) thermal relay 
C) Hall-effect switch 
D) bi-metal relay 
A) thermistor 
B) thermal relay 
C) Hall-effect switch 
D) bi-metal relay

Question 17

When transmission fluid temperature is too high, the TCM will cause the transmission to ______.

Accepted Answer

A) shift sooner than normal 
B) shift later than normal 
C) not upshift into high gear 
D) stay locked in high gear 
A) shift sooner than normal 
B) shift later than normal 
C) not upshift into high gear 
D) stay locked in high gear

Question 18

Air pressure can be used to test _____.

Accepted Answer

A) turbine speed sensors 
B) transmission gear range switches 
C) vehicle speed sensors 
D) pressure switches 
A) turbine speed sensors 
B) transmission gear range switches 
C) vehicle speed sensors 
D) pressure switches

Question 19

Name two TCM outputs.

Accepted Answer

shift solenoids 
pressure cont

Question 20

The ____________________ sensor on an EAT replaces the governor used on a hydraulic-controlled transmission.

Accepted Answer

VSS,vehicl

Exam 42: Electronic Automatic Transmissions

The first step in diagnosing an EAT transmission problem is ______.

Which of the following is NOT an advantage of an electronically controlled transmission?

Technician A says the EPC solenoid is a PWW (pulse width modulated)solenoid and receives a duty cycle signal from the TCM. Technician B says the EPC solenoid is an on/off solenoid that is turned on when the TCM sees the 3-4 upshift. Who is correct?

PCM input data such as MAP, TP, and engine speed cannot be transferred to the TCM through the vehicle CAN bus.

What type of sensor listed here is a potentiometer?

Computer cleaning spray is a good solvent to use for cleaning electrical terminals and connectors.

Which of the following tools is NOT used to check a TP sensor?

A computer-controlled transmission that starts out in the wrong gear could be caused by ______.

Toyota, Ford, and Nissan hybrid systems rely on ____________________ to determine the overall gear ratio of their CVTs.

If the crankshaft speed sensor reads 1,650 rpm and the TSS (turbine speed sensor)also reads 1,650 RPM, the torque converter is ______.

What is the function of the start clutch in the Honda CVT transaxle?

The dual mode hybrid transmission does not have _____.

Hydraulically controlled transmissions rely on signals from the ____________________ and ____________________ to force a shift in gears.

A magnetic pulse generator (PM generator)type sensor is commonly used to measure _____ on an EAT transmission.

The TFT sensor is a _____ and its output signal varies with ATF temperature.

When transmission fluid temperature is too high, the TCM will cause the transmission to ______.

Air pressure can be used to test _____.

Name two TCM outputs.

The ____________________ sensor on an EAT replaces the governor used on a hydraulic-controlled transmission.

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Hydraulically controlled transmissions rely on signals from the and to force a shift in gears.