Deck 4: Transmission Electronics

Question 1

DTCs are set by the TCM when a signal from a component is within a normal operating range.

Answer 1

False

Question 2

A short causes an incomplete circuit.

Answer 2

False

Question 3

A shift schedule contains the actual shift points used by the TCM.

Answer 3

True

Question 4

Energy can be destroyed but not created.

Question 5

The two types of input devices used in electronic control systems are reference voltage sensors and voltage generators.

Question 6

A TCM is a separate computer designated for automatic transmission/transaxle operation.

Question 7

A PM generator is used to sense vehicle load.

Question 8

Components or circuits are never marked if they are sensitive to electrostatic discharge.

Question 9

Static electricity can destroy an electronic component.

Question 10

An open can connect two or more circuits together.

Question 11

Diagnostic codes are used to find problems in transmissions.

Question 12

A computer is an electronic device that is unable to store information.

Question 13

The TCC apply valve is controlled by the PWM Solenoid.

Question 14

Electrical disturbances are momentary changes in an electrical signal.

Question 15

The sharing of information between computers within the vehicle is referred to as multiplexing.

Question 16

Engine speed, throttle position, temperature, and engine load are used to determine shift points.

Question 17

All codes will cause the MIL to illuminate.

Question 18

Electronic controls reduce the amount of wasted power in automatic transmissions.

Question 19

Glitches occur when there is a fault (defect)in the electrical circuit.

Question 20

Circuits in a vehicle have a circuit protection device placed in a common path from the battery.

Question 21

Technician A says DTCs can be set by out of range signals from electronic components. Technician B says remember to determine if the problems causing a DTC are hydraulic or mechanical related. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 22

Technician A says the only time an ammeter is used for testing is when the power for the circuit is disconnected. Technician B says when testing a circuit, the ammeter is always connected in series with the circuit. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 23

Technician A says the first step in checking transmission electrical controls is to verify system voltage. Technician B says when no DTCs are present then diagnose the transmission based on its symptoms. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 24

Technician A says the oil from your skin can cause corrosion of electrical terminals. Technician B says do not remove a part from its protective package until it is time to install the part. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 25

Radio frequency interference is a form of electromagnetic interference caused by low current flow.

Question 26

Technician A says when checking voltage drops, the negative meter lead is connected to ground and the positive lead is connected to the component being tested. Technician B says the voltmeter is connected across the load with the circuit activated when testing voltage drops. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 27

Honda hybrids use an integrated motor assist system that combines a modified gasoline engine with a permanent magnet electric motor.

Question 28

Technician A says when testing electronic circuits, a low impedance ohmmeter should be used. Technician B says semiconductors may be tested with an ohmmeter. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 29

A P0700 DTC means there are automatic transmission-related codes in addition to problems detected in the fuel and emission control systems.

Question 30

Technician A says a pulse width modulated solenoid can be found in some converter control systems. Technician B says a PM generator-type solenoid, which allows for full time but controlled slip, is used in some converter control systems. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 31

Technician A says before handling a component that is sensitive to electrostatic discharge, touch a known good ground. Technician B says before handling a component that is sensitive to electrostatic discharge, touch a known good power source. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 32

Technician A says the transmission fluid temperature sensor is located in the transmission cooling system. Technician B says transmission pressure switches can serve as feed-back sensors. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 33

​When observing a Hall effect sensor on a lab scope; Technician A says pay attention to the downward and upward pulses; they should be at an angle. Technician B says if they appear straight this indicates the transistor is faulty, causing the voltage to rise slowly. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 34

Technician A says when diagnosing a computer controlled transmission, the first step is to check all service information. Technician B says when diagnosing a computer controlled transmission, the first step is to verify the customer concern. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 35

Technician A says the signals from the transmission fluid temperature sensor affect the application of the converter clutch. Technician B says at excessive fluid temperature the TCm will command the clutch to unlock. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 36

Because of extremely high voltages, safety is of prime importance when working on or around hybrid vehicles.

Question 37

Technician A says when testing a switch, a test light is used at the output of the switch in various switch positions. Technician B says when checking a switch, a voltmeter is used at the output of the switch in various switch positions. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 38

The definition of which term is "the operating resistance of an electrical device"?

A)amplifying
B)impedance
C)energy
D)resistance

Question 39

The different hybrid systems present some changes to basic transmission design.

Question 40

The shift solenoids offer two possible on/off combinations to control fluid to the various shift valves.

Question 41

​Technician A says a multimeter is a meter that combines the functions of a voltmeter, an ammeter, and an ohmmeter. Technician B says impedance is best defined as the operating resistance of an electrical device. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 42

​Technician A says the fluid pressure switches used in today's transmissions either complete or open an electrical circuit to the computer. Technician B says that a fluid pressure switch can also be checked with air. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 43

While discussing magnetic pulse generators:  Technician A says magnetic pulse generators can be tested with a lab scope.  Technician B says the expected pattern is a DC signal.  Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 44

​Technician A says the default gear is the normal gear selection. Technician B says the default gear is normally the gear selected by the TCM when the solenoids are off. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 45

Which is the name of the rules or operating parameters that allow for the exchange of information between on-board computers?

A)Serial communication
B)Protocols of communication
C)Multiplexing
D)All of the above

Question 46

Technician A says an amplifying transistor is commonly referred to as a diode. Technician B says an IC is an incomplete circuit. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 47

Technician A says the duty cycle of a solenoid is the length of time the solenoid is off during a cycle. Technician B says a PCS works with a VFS to control duty cycles of solenoids. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 48

Technician A says a normally vented solenoid allows fluid pressure to reach the shift valve until it is energized. Technician B says a normally applied solenoid does not allow fluid pressure to the shift valve until it is energized. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 49

Technician A says some manufacturers monitor clutch volume indexes. Technician B says this is part of an adaptive strategy. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 50

Technician A says a DMM and a scan tool are two very important tools needed in diagnosing a computer controlled transmission. Technician B says circuits in a computer controlled transmission can be diagnosed using a simple test light. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 51

Technician A says the PCI data bus system is a single wire multiplex system. Technician B says the CAN data system is a twisted-wire multiplex system. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 52

Technician A says the flywheel/alternator/starter assembly may be positioned between the engine and the transmission and it does not require the very high voltage of the IMA. Technician B says the flywheel/alternator/starter assembly assists the engine when additional power is needed. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 53

Technician A says when extra power is needed, Honda's IMA uses a 144-volt synchronous AC motor to assist the gasoline engine. Technician B says the electric motor in Honda's IMA is located where the torque converter would normally be found. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 54

​Technician A says high current is caused by high resistance. Technician B says a short to ground can occur internally within a component. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 55

Technician A says the diode check function of an ohmmeter is used to test semiconductors. Technician B says voltmeters are used to test semiconductors. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 56

Technician A says that by monitoring the MAP values, the TCM can change the shift schedule of the vehicle. Technician B says the TP sensor voltage signal is sent to the PCM as an indication of engine temperature. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 57

​While testing temperature sensors: Technician A says typically the PCM supplies a reference voltage of 5 volts to the sensor.
Technician B says if the sensor is at its highest value on the scan tool, the sensor or its circuit is shorted.
Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 58

Technician A says the waveform created by AC voltage is typically called a sine wave. Technician B says one complete sine wave is a cycle. Who is correct?​

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 59

Technician A says a VSS is a sensor that transmits high voltage pulses. Technician B says a VSS measures electronic wear in the TCM. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 60

​While discussing a lab scope waveform: Technician A says the horizontal movement of the waveform represents voltage. Technician B says the horizontal voltage scale must be adjusted in relation to the expected voltage signal. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 61

____________________ establish an attraction of the north pole of a magnet to its south pole.

Question 62

​Technician A says a transistor is used to measure transmission temperature. Technician B says the PCM changes the operation of many systems based on temperature. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 63

​While discussing transmission adaptive learning: Technician A says this learning process allows the TCM to make adjustments to its program so that quality shifting always occurs. Technician B says the TCM learns to respond to the driver's driving habits. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 64

A(n)____________________ allows current to flow only in one direction.

Question 65

​Technician A says a generic DTC is designated by a P1XXX or P2XXX code. Technician B says manufacturer-specific codes are designated by P0XXX codes. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 66

The ____________________ provides changes in fluid pressure in response to engine load.

Question 67

____________________ is the movement of an electron from one atom to another.

Question 68

____________________ are materials in which electrons move easily.

Question 69

____________________ is a bi-directional bus system that allows various computers to communicate with each other.

Question 70

​While checking a transmission range sensor: Technician A says typically the range sensor is actually made up of several switches. Technician B says a faulty TR sensor may allow the engine to start in other gear positions besides Park and Neutral. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 71

____________________ is the relationship between volts, amperes, and resistance in a circuit.

Question 72

____________________ is directed movement of electrons.

Question 73

____________________ is a diode that releases some of its current as light.

Question 74

____________________ change resistance in response to movement.

Question 75

Technician A says in the ISAD system, the stator of the unit is mounted to the engine block. Technician B says the stator of the ISAD system is mounted on the end of the crankshaft of the engine. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 76

A(n)____________________ is an electronic brain.

Question 77

While discussing transmission solenoids: Technician A says the TCM relies on information from the engine control system, transmitted through such sensors as the MAP and TP sensor, as well as information from the transmission, to determine the optimum shift timing. Technician B says a TCC solenoid can be pulse-width modulated to smooth the engagement of the torque converter clutch. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 78

____________________ is a form of energy that can cause current to flow in a conductor.

Question 79

____________________ means the computer adapts to meet the needs of the driver and vehicle.

Question 80

A(n)____________________ allows current to flow in more than one path.