A-6 Electrical ASE Test Preparation   


Red Kap Automotive Mechanics Clothing

Supplemental Restraint - Air Bags

1. Working on a none OBD II vehicle, diagnostic procedures are being discussed. Technician A says that the best way to check for faults in the squib is to measure its resistance with an ohmmeter. Technician B says that disconnecting the battery for at least 90 seconds will clear all Air Bag diagnostic codes. Who is correct?

Technician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B.

 

2. When discussing front passenger side air bags, technician A says that the passenger seat must be occupied on most cars in order for the passenger side air bag to deploy. Technician B says that the front passenger side air bag will only deploy in a side impact collision. Who is correct?

Technician A only.
Technician B only.
Both Technician A and B.
Neither Technician A or B.

 

3. Working on a OBD II vehicle, diagnostic procedures are being discussed. Technician A says that when a system malfunction is detected, the air bag lamp will begin to flash. Technician B says that when a system malfunction is detected, a fault code is stored in memory and requires a scan tool to retrieve. Who is correct?

Technician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B.

 

4. If the Air Bag deploys, the Spiral Clock Spring (Spiral Ribbon) in the combination switch is:

not changed.
should be changed due to the heat generated from the air bag deployment.
is part of the air bag computer and is not replaced.
always replaced.

 

5. After Air Bag deployment, besides the air bag inflator modules on most cars:

only the impact (discrimination) sensors are replaced.
only the safing (arming) sensors are replaced.
all sensors and computer are replaced.
Only the air bag computer is replaced.

 

6. If the steering wheel pad is removed during a repair, always store it in a safe position with the horn pad facing:

Up.
Down.
On it's side.
It doesn't matter.

 

7. What color are the air bag system wire harness connectors?

White.
Red.
Gray.
Yellow.

 

8. Most front driver side Air Bag inflator modules use:

Argon gas canisters to inflate the air bag.
Hydrogen gas canisters to inflate the air bag.
Sodium Anzide canisters that burn to deploy the air bag.
Carbyte Sodium canisters that burn to deploy the air bag.

 

9. Most front passenger side Air Bag inflator modules uses:

a high pressure gas from a storage cylinder to inflate the air bag.
a sodium anzide canister that is ignited to produce nitrogen to inflate the air bag.
compressed air to inflate the air bag.
both compressed air and sodium anzide to inflate the air bag.

 

10. Some Air Bag systems use both internal and external sensors. Technician A says that an airbag will only deploy if both front impact (discrimination) sensors close. Technician B says than an airbag will deploy if one front impact (discrimination) sensors close, and one safing (Arming) sensor closes. Who is correct?

Technician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B.

 

11. The Air Bag System on most cars today is capable of deploying the air bag modules for up to ________ after the battery cables have been severed:

no more than 30 seconds.
up to 2 - 5 minutes.
Up to 15 minutes.
24 hours due to the internal power supply.

 

12. When repairing Air Bag systems. Impact (discrimination) or Safing (arming) sensors can be tested with an ohmmeter:

to test for proper operation of the sensor for it's reuse.
to test the diagnostic resistor inside only, which is used for the computer self diagnostics.
never, cannot be used.
To check the squib only.

 

13. The igniter charge is activated by the:

gas propellant.
Spiral ribbon (clock spring) cable.
squib.
air bag arming sensor.

 

14. Upon start up of the vehicle. The Air Bag Warning lamp:

Flashes only when a problem is detected.
Flashes for up to six seconds for self-diagnostics, then will go out.
Is on steady and will flash in a problem is detected.
Flashes slowly until the key is turned off.

 

15. Air bag codes that are stored in memory:

can only be retrieved by counting the air bag light flashes while in test mode.
can be retrieved only with a scan tool.
Can be either retrieved with either a scan tool or counting flashes of the air bag light depending on the year.
counting the voltmeter pulses is the only way to retrieve air bag codes.

 

 

16. Two technicians are discussing air bag system construction: Technician A says that air bag systems can use a Roller-Type or a Mass-Type impact sensor to deploy the air bag. Technician B says a spiral ribbon (clock spring) cable is used to electrically connect the driver side airbag to the air bag computer. Who is correct?

technician A only.
technician B only.
Both technician A and B.
neither technician A nor B.

 

17. Two technicians are discussing air bag system construction: Technician A says that a Roller-Type impact sensor uses a gold plated mass sensing ball that rolls forward in the event of a frontal impact. Technician B says Mass-type impact sensor use a gold plated mass sensing ball. Who is correct?

technician A only.
Technician B only.
Both technician A and B.
neither technician A nor B.

 

18. Technician A says that the impact (discrimination) sensor and safing (arming) sensor are wired in parallel. Technician B says both an impact and safing sensor must be closed for the air bag to deploy. Who is correct?

technician A only.
Technician B only.
Both technician A and B.
neither technician A nor B.

 

19. The part shown below is the:

discrimination (safing) sensor.
igniter assembly.
spiral ribbon cable (clock spring).
combination switch.

 

20. Two technicians are discussing "Head Curtain Air bags": Technician A says head curtain air bags will only deploy in a side impact and not a head on impact. Technician B says head curtain air bags drop from the head liner to protect the occupant's head from hitting the pillar or glass in a severe side collision. Who is correct?

technician A only.
technician B only.
both technician A and B.
neither technician A nor B.

 

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