Deck 81: Hybrid Vehicle Safety and Service

Question 1

There is no filter for HEV cooling fans, so they can become plugged by pet hair, dirt, or lint.

Answer 1

True

Question 2

A smart key is used with a hybrid vehicle. Keep the key at least ____ feet from the vehicle during service to prevent the engine from accidentally starting.

A)6
B)10
C)16
D)20

Answer 2

C

Question 3

Which of the following is LEAST-Likely item to be found on a hybrid inspection checklist?

A)Trunk/fuel lid release
B)12-volt battery
C)Dash light operation
D)Battery reconditioning

Answer 3

D

Question 4

A megohmmeter is a type of high voltage meter. It is also known as an insulation ____________________ tester because it is used to test insulation in high-voltage systems.

Question 5

A(n) ____________________ is an insulated fiberglass hook used to pull an electrocuted technician away from the electrical source.

Question 6

The high-voltage battery has two lower-voltage sections that are electrically connected by a high-voltage ____________________.

Question 7

All of the following statements are true EXCEPT:

A)hybrid vehicles have a separate and unique cooling system for the engine.
B)the ICE can be off for periods of time while the vehicle is under electric motor power alone.
C)the engine does not always generate and maintain heat.
D)the cylinder head must be cold prior to a cold start.

Question 8

As charging takes place, current flows in a positive direction.

Question 9

All of the following statements are true EXCEPT:

A)battery conditioning is a process done by some specialized aftermarket businesses.
B)through a series of cycles of controlled charging and discharging, most NiMH battery modules can be improved to 92-95 percent of the capacity of a new battery.
C)if the battery is not too old and the vehicle's hybrid electric management system is operating properly, the owner can expect to extend the life of the battery with reconditioning.
D)a typical reconditioned battery comes with an 3-year warranty.

Question 10

While having a discussion, Technician A says that a hybrid low-voltage auxiliary battery is matched to the HV charging system. If it requires replacement, it must be replaced with the recommended battery. Technician B says that a conventional lead-acid battery must not be used. Who is correct?

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

Question 11

The electrical conduit color MOST-Likely to signify ordinary 12 volts is:

A)black
B)blue
C)yellow
D)orange

Question 12

Which of the following components would MOST-Likely have an internal high-voltage fuse?

A)series connection
B)service plug
C)conventional lead-acid battery
D)DC-DC converter

Question 13

____ is the electric/hybrid color for cables and connectors, which can range from 144 to 650 volts. This can kill you!

A)Black
B)Blue
C)Yellow
D)Orange

Question 14

You can assume that turning off the car and removing the key depowers the high-voltage system, making it safe to work with.

Question 15

Hybrid vehicles can sit parked over an extended length of time (2 months or longer) with no impact on the high-voltage battery.

Question 16

Within the ____________________ are the hybrid powertrain control module (HPCM) and the drive motor control module (DMCM).

Question 17

When referring to an HV battery pack, a(n) ____ is a pair of modules.

A)SOC
B)battery block
C)All Bat
D)starter generator control module

Question 18

Changing the oil and filter on a hybrid ICE is the same as with a conventional engine.

Question 19

____________________ is used by Toyota and Lexus hybrids to indicate the difference in state of charge between different sections (blocks) of the battery pack.

Question 20

While having a discussion, Technician A says that when comparing HEV battery scan data, charging current is indicated with a negative (-) value and discharging current is indicated with a positive (+) value. Technician B says that the values are just the opposite. Who is correct?

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

Question 21

In addition to the READY light, what other warning lights do hybrid vehicles have?

Question 22

There are recycling companies that sell refurbished hybrid batteries. What is the difference between a rebuilt and a remanufactured battery?

Question 23

List some high-voltage meter safety tips.

Question 24

How should you test high-voltage safety gloves?

Question 25

What is the procedure for a quick engine-running test used by most technicians?