Question 1

Whenever the passenger-side front-seat retaining bolts are loosened, the seat is removed from the vehicle, the seat is replaced, the seat trim is replaced, a sensor is replaced, or the OCM is replaced, an OCS ____ must be performed.

Accepted Answer

Whenever there are any changes made to the OCS system, a validation test must be performed to ensure that the system is working properly. This is to ensure the safety of the passengers in the vehicle.

Question 2

Multistage air bags are hybrid air bags that use ____ to control the rate of inflation.

Accepted Answer

Multistage air bags use two squibs to control the rate of inflation, allowing for a more controlled deployment based on the severity of the collision.

Question 3

To assure that the driver and/or passenger stay in position during an accident, some vehicles are equipped with seat belt ____.

Accepted Answer

Pretensioners are devices in seat belts that automatically tighten to remove slack when a collision is detected, keeping the occupants in place and reducing the risk of injury.

Question 4

Air bag system service is being discussed. Technician A says incorrect torque on a sensor fastener may cause improper bag deployment. Technician B says dropping a sensor may cause improper bag deployment. Who is correct?

Accepted Answer

Both Technician A and B are correct. Incorrect torque on a sensor fastener can cause improper bag deployment as the sensor may not provide accurate information to the airbag control module. Dropping a sensor can also cause damage and inaccurate information to be sent to the module, which may result in improper bag deployment.

Question 5

The automatic seat belt:

Accepted Answer

The automatic seat belt places the shoulder and/or lap belt around the occupant when the door is closed. This was a type of seat belt system that was popular in the 1980s and 1990s before being largely replaced by the more modern three-point seat belt system.

Question 6

The ____ keeps the driver in the correct upright position during a collision, so the air bag is more efficient.

Accepted Answer

The answer of The ____ keeps the driver in the...

Question 7

Which of the following tools should NOT be used to test an air bag system?

Accepted Answer

A 12-volt test light should not be used to test an air bag system as it can cause accidental deployment of the air bag. The best choice would be to use a scan tool specifically designed for air bag systems to diagnose any issues.

Question 8

Any time the vehicle is involved in an accident, even if the air bag was not deployed, all air bag system components should be inspected. Service is by ____.

Accepted Answer

According to the statement, "all air bag system components should be inspected" and there is no mention of rebuilding or evaluating the condition of the components. Therefore, the best choice is replacement only.

Question 9

Usually the air bag system stores two types of fault codes: active and ____.

Accepted Answer

The air bag system stores active fault codes when it detects a current problem and stores stored fault codes when it detects a past problem that has been resolved. Inactive, intermittent, and critical are not commonly used terms to describe air bag fault codes.

Question 10

Most automotive manufacturers, and many after-market suppliers, developed a method of performing air bag diagnostics by use of an air bag _____.

Accepted Answer

Air bag simulators are commonly used in automotive diagnostics to simulate the presence of an air bag system and allow for testing without actually deploying an air bag. Igniters, deployers, and validators are all components of the air bag system and not used specifically for diagnostics.

Question 11

Air bag safety is being discussed. Technician A says to always carry an undeployed air bag module with the trim facing away from your body. Technician B says to place on the bench with the trim facing down. Who is correct?

Accepted Answer

Technician A is correct because an undeployed air bag module should always be carried with the trim facing away from the body to prevent accidental deployment.

Question 12

Technician A says trouble codes will lead you to the correct diagnostic chart to use. Technician B says that trouble codes indicate the exact location of the fault. Who is correct?

Accepted Answer

Technician A is correct that trouble codes will lead you to the correct diagnostic chart to use. Technician B is incorrect because trouble codes do not indicate the exact location of the fault, but rather give a general indication of which system or component is experiencing an issue.

Question 13

A deployed air bag has a powdery residue on it. Technician A says this powder is mainly sodium carbonate. Technician B says it may contain corn starch. Who is correct?

Accepted Answer

Both technicians are correct. The powdery residue on air bags is typically a combination of sodium carbonate and corn starch. Sodium carbonate is used to neutralize the acids that are produced when the air bag is deployed, and corn starch is added to prevent the sodium carbonate from clumping together.

Question 14

The approximate inflation time for most air bags is

Accepted Answer

Air bags are designed to inflate extremely quickly to provide protection in the event of a crash. The approximate inflation time for most air bags is less than 100 milliseconds (mS), which is necessary to ensure they are fully inflated by the time the occupant impacts them.

Question 15

On a vehicle equipped with a bladder type air bag system: The customer is concerned about the "Pass Air Bag Off" light not illuminating when their eight year old child sits in the passenger front seat. Technician A says this is normal operation. Technician B says a DTC will set for this condition. Who is correct?

Accepted Answer

Technician A is correct because the "Pass Air Bag Off" light not illuminating when an eight-year-old child sits in the passenger front seat can be considered normal operation, depending on the child's weight and the vehicle's airbag system sensitivity. Modern vehicles are equipped with sensors to detect the presence and weight of a passenger to determine whether it is safe to deploy the airbag in case of an accident. If the child does not meet the weight threshold, the system may decide not to arm the airbag, and thus the light indicating the airbag is off may not illuminate. Technician B is incorrect because a Diagnostic Trouble Code (DTC) would not necessarily set for this condition as it is within the normal operational parameters of the system.

Question 16

Technician A says that the clockspring is located at the bottom of the steering column. Technician B says that the clockspring maintains electrical contact between the air bag module and the rest of the system. Who is correct?

Accepted Answer

The clockspring is actually located in the steering wheel, not at the bottom of the steering column, and it does maintain electrical continuity for the airbag, horn, and other steering wheel-mounted controls as the wheel turns.

Question 17

Technician A says the automatic parking system automatically operates the electric steering gear to maneuver the vehicle into a parking spot. Technician B says the automatic parking system can only perform parallel parking procedures. Who is correct?

Accepted Answer

Technician A is correct, the automatic parking system operates the electric steering gear to maneuver into a parking spot. 
Technician B is incorrect, as the automatic parking system is capable of performing both parallel and perpendicular parking procedures.

Question 18

Technician A says during a frontal collision, the backup power supply will deploy the air bag if the battery becomes disconnected. Technician B says all backup power supplies will power down one minute after the negative battery is disconnected. Who is correct?

Accepted Answer

During a frontal collision, the backup power supply will deploy the airbag if the battery becomes disconnected. Technician A is correct. Technician B is incorrect as backup power supplies will power down 10 seconds after the negative battery cable is disconnected, not 1 minute.

Question 19

A technician is working under the instrument panel and comes across a yellow connector. What does this mean?

Accepted Answer

A yellow connector under the instrument panel is typically associated with the air bag system. Yellow connectors are standard in the automotive industry and indicate a connection to the SRS (Supplemental Restraint System) or air bag system. It is important to exercise caution when working with these connectors to avoid accidental deployment of the air bags.

Question 20

The diagnostic system check involves observing the air bag ____ to determine if it is operating normally.

Accepted Answer

The diagnostic system check involves observing the air bag warning light to determine if it is operating normally.

Quiz 15: Passive Restraint and Vehicle Safety Systemsservicing Passive Restraint and Vehicle Safety Systems