Mazda X-5. Manual — part 95

AIR BAG SYSTEM

08–10–9

08–10

PASSENGER SENSING SYSTEM OPERATION

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1. The load on the passenger-side seat is converted into an electric signal by the strain gauge built into the seat

weight sensor, and this signal is sent to the seat weight sensor control module.

2. The electronic signals from the two seat weight sensor are used for calculation by the seat weight sensor

control module, which divides the result and then determines whether there is an adult or child (including a
child-restraint seat) in the passenger-side seat, or that it is empty. The determined result is sent to the SAS
control module.

3. The SAS control module performs control based on this determined result as shown in the following table when

the module detects a level of impact requiring operation (deployment).

×: Possible

-: Not possible

Note

• The passenger-side air bag module, the passenger-side side air bag module and the passenger-side pre-

tensioner seat belt system will be turned off as the total seated weight drops toward 30kg {66 lb} and they
will be turned on again before the weight exceeds 42kg {93 lb}.

Determined result

Determined weight

Passenger-side

air bag module

operation

(deployment)

Passenger-side

side air bag

module operation

(deployment)

Passenger-side

pre-tensioner seat

belt operation

(deployment)

PAD

indicator

Adult

Approx. 42 kg {93 lb} or
more

×

×

×

Not

illuminated

Child (including
child-restraint seat)

Approx. 30 kg {66 lb} or
less

-

-

-

Illuminated

Empty

Approx. 0 kg {0 lb}

-

-

-

Not

illuminated

AIR BAG SYSTEM

08–10–10

Caution

• If any of the following work is performed, perform the seat weight sensor calibration using the

WDS or equivalent.

— Replacement with a new seat weight sensor

— Replacement with a new seat weight sensor control module

— Replacement with new passenger-side seat parts

— Disassembly of the passenger-side seat

• If any of the following work is performed, perform the seat weight sensor inspection using the

WDS or equivalent.

— Removal of the passenger-side seat

— Loosening and retightening of passenger’s seat fixing bolts

— Or, the vehicle is involved in a collision

End Of Sie

IG1

IG1

PASSENGER-SIDE
PRE-TENSIONER
SEAT BELT

PASSENGER-SIDE
PRE-TENSIONER
SEAT BELT

PASSENGER-SIDE
PRE-TENSIONER
SEAT BELT

IG1

IG1

IG1

IG1

PAD
INDICATOR

PAD
INDICATOR

PAD
INDICATOR

SAS
CONTROL
MODULE

SAS
CONTROL
MODULE

SAS
CONTROL
MODULE

SEAT
WEIGHT
SENSOR
(RH)

SEAT
WEIGHT
SENSOR
CONTROL
MODULE

ADULT
DETERMINED

EMPTY SEAT
DETERMINED

SEAT
WEIGHT
SENSOR
CONTROL
MODULE

SEAT
WEIGHT
SENSOR
(LH)

SEAT
WEIGHT
SENSOR
CONTROL
MODULE

SEAT
WEIGHT
SENSOR
(RH)

SEAT
WEIGHT
SENSOR
(RH)

SEAT
WEIGHT
SENSOR
(LH)

SEAT
WEIGHT
SENSOR
(LH)

TWISTED
PAIR

TWISTED
PAIR

TWISTED
PAIR

ELECTRIC SIGNAL

ELECTRIC SIGNAL

ELECTRIC SIGNAL

CHILD (INCLUDING A
CHILD-RESTRAINT SEAT)
DETERMINED

PASSENGER-SIDE
AIR BAG MODULE

PASSENGER-SIDE
AIR BAG MODULE

PASSENGER-SIDE SIDE
AIR BAG MODULE

PASSENGER-SIDE SIDE
AIR BAG MODULE

PASSENGER-SIDE
AIR BAG MODULE

PASSENGER-SIDE SIDE
AIR BAG MODULE

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AIR BAG SYSTEM

08–10–11

08–10

PASSENGER AIR BAG DEACTIVATION (PAD) SYSTEM FUNCTION

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• By operation of the PAD switch, vehicle occupants can optionally switch the passenger-side air bag module,

passenger-side side air bag module, and the passenger-side pre-tensioner seat belt between operational
(deployable) and inoperational (undeployable) conditions.

End Of Sie

PASSENGER AIR BAG DEACTIVATION (PAD) SYSTEM STRUCTURAL VIEW

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End Of Sie

PASSENGER AIR BAG DEACTIVATION (PAD) SYSTEM CONSTRUCTION/OPERATION

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• Consists of the PAD switch, installed on the left side of the dashboard, the PAD indicator, installed near the

center of the dashboard, and the SAS control module.

• With the key inserted, when the PAD switch is turned to the OFF position, electric current A from the SAS

control module passes through the PAD switch to ground, thereby forming an off circuit. At the same time, the
PAD indicator illuminates and operation (deployment) of the passenger-side air bag module, passenger-side
side air bag module, and the passenger-side pre-tensioner seat belt is inhibited.

PAD SWITCH

SAS CONTROL MODULE

PAD
INDICATOR

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AIR BAG SYSTEM

08–10–12

End Of Sie

DRIVER-SIDE AIR BAG MODULE FUNCTION

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Outline

• A dual inflator, divided into inflator No.1 and No.2, has been adopted in accordance with the front air bag

system two-step deployment control.

End Of Sie

DRIVER-SIDE AIR BAG MODULE CONSTRUCTION/OPERATION

E5U081057010N02

Inflator Operation
Inflator No.1

1. When the driver-side air bag module receives an operation (deployment) signal from the SAS control module,

the igniter built into inflator No.1 builds up heat and ignites the inflammation agent.

2. The ignition of the inflammation agent causes the combustion of a gas-generating agent which releases

nitrogen gas.

3. The nitrogen gas is cooled at the filter and the filtrate is injected into the air bag.

IG1

IG1

PAD SWITCH IS AT PASS AIRBAG ON POSITION

PAD SWITCH IS AT PASS AIRBAG OFF POSITION

PAD INDICATOR

PAD
INDICATOR

PAD SWITCH

PAD SWITCH

PASS
AIRBAG
ON

PASS
AIRBAG
ON

PASS
AIRBAG
OFF

PASS
AIRBAG
OFF

ELECTRIC
CURRENT A

SAS CONTROL
MODULE

SAS CONTROL
MODULE

PASSENGER-SIDE
AIR BAG MODULE

PASSENGER-SIDE SIDE
AIR BAG MODULE

PASSENGER-SIDE PRE-
TENSIONER SEAT BELT

PASSENGER-SIDE
AIR BAG MODULE

PASSENGER-SIDE SIDE
AIR BAG MODULE

PASSENGER-SIDE PRE-
TENSIONER SEAT BELT

E5U810ZS5009