Infiniti I30 (A33). Manual — part 334
Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”
NHEL0001
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to INFINITI I30 is as follows:
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For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), seat belt
pre-tensioners, a diagnosis sensor unit, crash zone sensor, warning lamp, wiring harness and spiral cable.
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For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision), wiring
harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:
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To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized INFINITI dealer.
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Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.
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Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
Wiring Diagrams and Trouble Diagnosis
NHEL0002
When you read wiring diagrams, refer to the following:
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Refer to GI-11, “HOW TO READ WIRING DIAGRAMS”
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Refer to EL-10, “POWER SUPPLY ROUTING” for power distribution circuit
When you perform trouble diagnosis, refer to the following:
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Refer to GI-35, “HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES”
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Refer to GI-24, “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”
Check for any Service bulletins before servicing the vehicle.
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PRECAUTIONS
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
EL-5
Description
NHEL0003
HARNESS CONNECTOR (TAB-LOCKING TYPE)
NHEL0003S01
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The tab-locking type connectors help prevent accidental looseness or disconnection.
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The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to the
illustration below.
Refer to the next page for description of the slide-locking type connector.
CAUTION:
Do not pull the harness or wires when disconnecting the connector.
[Example]
SEL769DA
HARNESS CONNECTOR
Description
EL-6
HARNESS CONNECTOR (SLIDE-LOCKING TYPE)
=NHEL0003S02
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A new style slide-locking type connector is used on certain systems and components, especially those
related to OBD.
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The slide-locking type connectors help prevent incomplete locking and accidental looseness or disconnec-
tion.
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The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the illustra-
tion below.
CAUTION:
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Do not pull the harness or wires when disconnecting the connector.
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Be careful not to damage the connector support bracket when disconnecting the connector.
[Example]
SEL769V
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HARNESS CONNECTOR
Description (Cont’d)
EL-7
Description
NHEL0004
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
NHEL0004S01
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
SEL881H
TYPE OF STANDARDIZED RELAYS
NHEL0004S02
1M
1 Make
2M
2 Make
1T
1 Transfer
1M·1B
1 Make 1 Break
SEL882H
STANDARDIZED RELAY
Description
EL-8
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