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SRS-8
< SERVICE INFORMATION >
PREPARATION
PREPARATION
Commercial Service ToolINFOID:0000000001327743
Tool name Description
Tamper resistant TORX bit
S-NT757
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)SRS-9
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS ConfigurationINFOID:0000000001524154
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ON or START posi-
tion.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module and front passenger air bag module are activated in a frontal col-
lision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows:
PHIA1120E
SRS configuration Frontal collision Left side collision Right side collision
Driver air bag module ×——
Front passenger air bag module ×——
Front LH seat belt pre-tensioner ×——
Front RH seat belt pre-tensioner ×——
Front LH side air bag module — ×—
Front RH side air bag module — — ×
LH side curtain air bag module — ×—
RH side curtain air bag module — — ×
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SRS-10
< SERVICE INFORMATION >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Front Seat Belt Pre-te nsioner with Load Limiter
INFOID:0000000001524155
The seat belt pre-tensioner system wi th load limiter is installed for
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the pre-tensioner. Vehicle passengers are
securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt
web tension while maintaining force.
Front Side Air BagINFOID:0000000001524156
Front side air bag is built-in type.
The front seatbacks with built-in type side air bag have the labels as
shown.
Side Curtain Air BagINFOID:0000000001524157
The side curtain air bags have the labels as shown.
Occupant Classification System (OCS)INFOID:0000000001524158
The occupant classification system identifies different si ze occupants, out of position occupants, and detects if
child seat is present in the front passenger seat. The oc cupant classification system receives inputs from the
occupant classification sensor (located inside the pa ssenger 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 clas sification system sends a signal to the diagnosis sensor unit. The diag-
nosis sensor unit uses this signal to determine full, pa rtial, 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-III can be used to confirm the passenger air bag status (readiness).
SRS444
SHIA0170E
BF-2006D
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)SRS-11
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Passenger Air Bag Status ConditionINFOID:0000000001524159
NOTE:
Passenger does not meet Ocuupant classification System specifications for passenger air bag activation.
Component Parts of Occupant Classification SystemINFOID:0000000001524160
Passenger Seatbelt Warning System
SYSTEM DESCRIPTION
This system warns when passenger seatbelt is not fasten.
This system is composed of the following items.
Seatbelt warning lamp.
Seatbelt buckle switch (passenger side).
Air bag diagnosis sensor unit.
Occupant classification system.
Seatbelt is warning lamp is used for both driver seatbelt warning and passenger seatbelt warning.
Seatbelt warning lamp turs ON when all conditions below are met.
Driver seatbelt is fastend.
Occupant is on passenger seat.
Passenger seatbelt is not fasten.
Front Passenger Seat
(Condition) PASS AIR BAG OFF Indicator
(Status) Passenger Air Bag Status
(Readiness) CONSULT-III Display
Seat occupied OFF Active (enabled) ON
seat occupiedNOTE ON Deactivated (disabled) OFF
Seat empty OFF Deactivated (disabled) OFF
PHIA1334E
1. Occupant classification system con-
trol unit 2.Occupant classification system sen-
sor 3. Bladder
4. Front passenger air bag OFF indica-
tor (Cut off telltaile)
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SRS-12
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
Trouble Diagnosis IntroductionINFOID:0000000001524161
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 identifi ed by yellow and/or orange harnesses or harness
connectors.
Do not repair, splice or modify the SRS wiring harn ess. 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 us ing “AIR BAG” warning lamp and/or CONSULT-III.
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” wa rning lamp and CONSULT-III are as follows:
HOW TO PERFORM TROUBLE DIAGNOSIS 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 malf unction. 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 the following parts are in good order.
Battery (Refer to SC-4, "
How to Handle Battery".)
Fuse (Refer to SRS-16, "
Wiring Diagram - SRS -".)
System component-to-harness connections
Work Flow
OVERALL SEQUENCE
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation CONSULT-III — X Monitoring
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TROUBLE DIAGNOSISSRS-13
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DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom.
>> GO TO 2.
2.PERFORM PRELIMINARY CHECK
At the begining of inspection, confirm the condition of pow er supply circuit, check that the battery is charged
and fuses and fusible links are not blown.
Is power supply circuit normal?
YES >> GO TO 3.
NO >> Repair or replace the battery and fuse/fusible links.
3.PERFORM SELF-DIAGNOSIS USING “C ONSULT-III” (WITH CONSULT-III)
Check the screen of CONSULT-III.
Is malfunctioning part displayed on CONSULT-III?
YES >> GO TO 5.
NO >> Repeat DTC confirmation with diagnostic procedure.
4.PERFORM SELF-DIAGNOSIS “AIR BAG” WA RNING LAMP (WITHOUT CONSULT-III)
Check the warning lamp status.
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SRS-14
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Is malfunctioning part detected?
YES >> GO TO 5.
NO >> Repeat DTC confirmation with diagnostic procedure.
5.REPAIR OR REPLACE
Repair or replace the malfunctioning part.
After the malfunctioning is repaired, eras e the self-diagnostic result. Refer to
SRS-21, "CONSULT-III Func-
tion".
>> GO TO 6.
6.FINAL CHECK DIAGNOSIS MODE AND USER MODE
Check the screen of CONSULT-III and/or Air bag warning lamp status.
Are the malfunctions corrected?
YES >> INSPECTION END .
NO >> GO TO 3 or GO TO 4.
Component Parts LocationINFOID:0000000001524162
PHIA1352E
1. Driver air bag module 2. Front passenger air bag module 3. Spiral cable
4. Front side air bag module (LH/RH) 5. Diagnosis sensor unit 6. Side air bag (Satellite) sensor (LH/
RH)
7. Seat belt pre-tensioner (LH/RH) 8. Seat belt buckle switch (LH/RH) 9. Side curtain air bag module
10. Crash zone sensor 11. Occupant classification system sen-
sor12.
Occupant classification system con-
trol unit
13. Belt tension sensor (passenger side)
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TROUBLE DIAGNOSISSRS-15
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SchematicINFOID:0000000001524163
THWM0250E
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