air condition NISSAN 350Z 2007 Z33 Supplemental Restraint System Workshop Manual

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION SRS
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SRS
Revision: 2006 November2007 350Z
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ..................................... 3
Precautions for Battery Service ................................ 3
Occupant Classification System Precaution ............ 3
PREPARATION ........................................................... 4
Commercial Service Tools ........................................ 4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ....... 5
SRS Configuration ................................................... 5
Front Seat Belt Pre-tensioner with Load Limiter ...... 6
Front Side Air Bag .................................................... 6
Side Curtain Air Bag/for Coupe ................................ 6
Warning Lamp .......................................................... 6
Occupant Classification System (OCS) ................... 7
Passenger Air Bag Status Condition ........................ 7
Component Parts of Occupant Classification Sys-
tem ........................................................................... 7
Passenger Seat belt Warning System ...................... 8
TROUBLE DIAGNOSIS .............................................. 9
Trouble Diagnosis Introduction ................................. 9
DIAGNOSIS FUNCTION ....................................... 9
HOW TO PERFORM TROUBLE DIAGNOSES
FOR QUICK AND ACCURATE REPAIR ............... 9
WORK FLOW ...................................................... 10
Component Parts Location ...................................... 11
Schematic .............................................................. 12
Wiring Diagram — SRS —/For Coupe ................... 13
Wiring Diagram — SRS —/For Roadster ............... 19
CONSULT-lll Function ............................................ 25
DIAGNOSIS MODE FOR CONSULT-LLL ........... 25
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-LII ............................................ 25
HOW TO ERASE SELF-DIAGNOSTIC
RESULTS ............................................................ 26
Self-Diagnosis Function (Without CONSULT-lll) .... 26
HOW TO CHANGE SELF-DIAGNOSTIC MODE WITHOUT CONSULT-LLL ................................... 26
HOW TO ERASE SELF-DIAGNOSTIC
RESULTS ............................................................ 26
SRS Operation Check (USER MODE) ................... 27
DIAGNOSTIC PROCEDURE .............................. 27
Trouble Diagnosis with CONSULT-IlI ...................... 29
DIAGNOSTIC PROCEDURE .............................. 29
Trouble Diagnosis without CONSULT-IlI ................. 33
DIAGNOSTIC PROCEDURE .............................. 33
WARNING LAMP FLASH CODE CHART ........... 33
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn OFF ......................................................... 37
DIAGNOSTIC PROCEDURE .............................. 37
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn ON ........................................................... 38
DIAGNOSTIC PROCEDURE .............................. 38
Trouble Diagnosis: Passenger Seat belt Warning
System .................................................................... 39
DRIVER AIR BAG MODULE .................................... 40
Removal and Installation ........................................ 40
REMOVAL ........................................................... 40
INSTALLATION ................................................... 41
SPIRAL CABLE ........................................................ 42
Removal and Installation ........................................ 42
REMOVAL ........................................................... 42
INSTALLATION ................................................... 43
FRONT PASSENGER AIR BAG MODULE .............. 44
Removal and Installation ........................................ 44
REMOVAL ........................................................... 44
INSTALLATION ................................................... 45
SIDE CURTAIN AIR BAG MODULE (FOR COUPE) ... 46
Removal and Installation ........................................ 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 47
CRASH ZONE SENSOR ........................................... 48
Removal and Installation ........................................ 48
REMOVAL ........................................................... 48
INSTALLATION ................................................... 48

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
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Occupant Classification System (OCS) NHS000A1
The occupant classification system identifies different size occupants, out of position occupants, and detects if
child seat is present in the front passenger seat. The occupant classification system receives inputs from the
occupant classification sensor (located inside the passenger seat cushion assembly) and belt tension sensor
(part of the passenger front seat belt assembly and located at the belt anchor location). Depending on classifi-
cation of passenger, the occupant classification system sends a signal to the diagnosis sensor unit. The diag-
nosis sensor unit uses this signal to determine full, partial, or non deployment of passenger front air bag in the
event of a collision. Depending on the signal received, the diagnosis sensor unit can disable the passenger
front air bag completely.
NOTE:
In case of customer concern, CONSULT-ll can be used to confirm the passenger air bag status (readiness).
Passenger Air Bag Status Condition NHS000A2
NOTE:
Passenger does not meet Ocuupant classification System specifications for passenger air bag activation.
Component Parts of Occupant Classification System NHS000A3
Front Passenger Seat
(Condition)PASS AIR BAG OFF Indicator
(Status)Passenger Air Bag Status
(Readiness)CONSULT-lll Display
Seat occupied OFF Active (enabled) ON
seat occupiedNOTE ON Deactivated (disabled) OFF
Seat empty OFF Deactivated (disabled) OFF
PHIA1357E
1.Occupant classification system con-
trol unit2. Seat sensor mat 3.Occupant classification system con-
nector
4.Passenger air bag OFF Indicator
(cut-off telltaile)

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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Revision: 2006 November2007 350Z
Passenger Seat belt Warning System NHS000A4
SYSTEM DESCRIPTION
This system warns when passenger seat belt is not fasten.
This system is composed of the following items.

Seat belt warning lamp.

Seat belt buckle switch (passenger side).

Air bag diagnosis sensor unit.

Occupant classification system.
Seat belt warning lamp is used for both driver seat belt warning and passenger seat belt warning.
Seat belt warning lamp turns ON when all conditions below are met.

Driver seat belt is fastened.

Occupant is on passenger seat.

Passenger seat belt is not fasten.

TROUBLE DIAGNOSIS
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TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionNHS0000H
CAUTION:

Do not use electrical test equipment on any circuit related to the SRS unless instructed in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

Do not repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a
new one.

Keep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnostic results can be read by using “AIR BAG” warning lamp and/or CONSULT-lll.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-IlI are as follows:
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Information from Customer
WHAT..... Vehicle model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms
Preliminary Check
Make sure that the following parts are in good order.

Battery (Refer to SC-4, "How to Handle Battery" .)

Fuse (Refer to SRS-13, "Wiring Diagram — SRS —/For Coupe" or SRS-19, "Wiring Diagram — SRS —/
For Roadster" .)

System component-to-harness connections
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation
CONSULT-lII — X Monitoring

SRS-28
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Warning lamp examples
“AIR BAG” warning lamp operation-User mode- SRS condition Reference item

No malfunction is detected.

No further action is necessary.—

The system is malfunctioning and
needs to be repaired as indicated.Go to SRS-33, "
WARNING LAMP
FLASH CODE CHART" or SRS-29,
"DTC No. Index (“SELF-DIAG
[CURRENT]” “SELF-DIAG [PAST]”
or TROUBLE DIAG RECORD )" .

Air bag is deployed.

Seat belt pre-tensioner is deployed.Go to SRS-53, "
COLLISION DIAG-
NOSIS" .

Diagnosis sensor unit is malfunction-
ing.

Air bag power supply circuit is mal-
functioning.

SRS air bag warning lamp circuit is
malfunctioning.Go to SRS-37, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn OFF" .

Diagnosis sensor unit is malfunction-
ing.

Air bag warning lamp circuit is mal-
functioning.Go to SRS-38, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn ON" .
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E

TROUBLE DIAGNOSIS
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Trouble Diagnosis: Passenger Seat belt Warning SystemNHS000A5
1. HECK THE SYSTEM 1
Check seat belt warning lamp function.
Seat belt warning lamp turns ON in the following conditions.

Driver seat belt is fastened.

Occupant is on passenger seat.

Passenger seat belt is not fasten.
OK or NG
OK >> GO TO 2.
NG >> Check the followings.

Harness between air bag diagnosis sensor unit and combination meter.

Seat belt buckle switch (passenger side) circuit.

Seat belt buckle switch (passenger side).
If these are OK, replace air bag diagnosis sensor unit.
2. CHECK THE SYSTEM 2
Check seat belt warning lamp function.
Seat belt warning lamp turns OFF in the following conditions.

Driver seat belt is fastened.

Occupant is on passenger seat.

Passenger seat belt is fastened.
OK or NG
OK >> System is OK.
NG >> Check the followings.

Sea tbelt buckle switch (passenger side) circuit.

Seat belt buckle switch (passenger side).
If these are OK, replace air bag diagnosis sensor unit.