Downloaded from www.Manualslib.com manuals search engine 8B-85 Air Bag System:
SDM Power Supply and Ground Circuit CheckS6RW0D8204049
Wiring Diagram
Troubleshooting
“L04”14
5
9RED
RED/BLK GRN
YEL/BLK
BLK
8 7
11
12
15
L04-2
L04-28
L04-27
“G241” “G271” “L313”
13
12V
6
1BLK
WHT WHT
WHT/RED 2
34
310 BLK
“G273”
“E324”16
12V5V30V
17
I6RW0C820016-01
1. Battery 6. Ignition switch 11. Combination meter 16. DC / DC converter
2. Main fuse 7. Junction block assembly 12. “AIR BAG” warning light 17. Back up capacitor
3. Fuse 8. “A/B” fuse 13. Light driver
4. Individual circuit fuse box No.1 9. “METER” fuse 14. SDM
5. “IGN” fuse 10. “DOME” fuse 15. Ground for SDM
Step Action Yes No
1Battery voltage check
1) Measure voltage on battery.
Is voltage in 9 – 16 V?Go to Step 2. Check charging system
and repair as necessary
referring to “Generator
Test (Undercharged
Battery Check) in
Section 1J” or
“Generator Test
(Overcharged Battery
Check) in Section 1J”.
2Connection check
1) Check for loose each connection.
Is it connected securely?Go to Step 3. Intermittent trouble.
Check for intermittent
trouble referring to
“Inspection of
Intermittent and Poor
Connections” If OK,
substitute a known-
good SDM and recheck.
3Circuit fuse check
1) With ignition switch turn OFF, check “A/B” fuse for
blowing.
Is “A/B” fuse in good condition?Go to Step 4. Repair defective wire
circuit. After repaired,
replace “A/B” fuse.
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4Power supply circuit check
1) With ignition switch turned OFF, disconnect connector
from SDM.
2) Check for proper connection to SDM terminal at “L04-
27”.
3) With ignition switch turned ON, measure voltage
between “L04-27” terminal of SDM connector and body
ground.
Special tool
(A): 09932–76010
Is voltage in 10 – 14 V?Go to Step 5. Repair defective wire
circuit.
5Ground circuit check
1) Turn ignition switch to OFF position.
2) Check for proper connection to SDM terminal at “L04-
28”.
3) Measure resistance between “L04-28” terminal and
vehicle body ground.
Special tool
(A): 09932–76010
Is resistance 1
Ω or less?SDM Power Supply and
ground circuit is good
condition.Repair defective wire
circuit. Step Action Yes No
“L04-27”
(A)
I7RW01822106-05
“L04-28”
(A)
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Downloaded from www.Manualslib.com manuals search engine 8B-87 Air Bag System:
Contact Coil Cable and Its Circuit CheckS6RW0D8204050
Troubleshooting
Step Action Yes No
1Driver air bag circuit check
1) Remove driver air bag (inflator) module referring to
“Driver Air Bag (Inflator) Module Removal and
Installation”.
2) With ignition switch turned OFF, disconnect SDM
connector “L04”.
3) Release shorting bar in SDM connector inserting release
tool (1) included in special tool (A).
Special tool
(A): 09932–76010
4) Measure resistance between “L04-3” and “L04-4”
terminals.
Is each measured resistance infinity?Go to Step 2. Check defective wire
harness.
If wire is OK, replace
contact coil.
2Contact coil circuit (driver air bag circuit) check
1) Remove contact coil referring to “Contact Coil Cable
Assembly Removal and Installation in Section 6B”.
2) Measure resistance between “A” terminal of driver air
bag connector (1) and “a” terminal of contact coil
connector (2).
3) Measure resistance between “B” terminal of driver air
bag connector (1) and “b” terminal of contact coil
connector (2).
Special tool
(A): 09932–76010
Is each measured resistance 1
Ω or less?Go to Step 3 or 4. Replace contact coil.
“L04-4”
“L04-3”
1,(A)(A)
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1
1
AB
(A)ba
2
I6RW0B820013-03
Downloaded from www.Manualslib.com manuals search engine 8B-93 Air Bag System:
Repair Instructions
Disabling Air Bag SystemS6RW0D8206001
1) Turn steering wheel so that vehicle’s wheels (front
tires) are pointing straight ahead.
2) Disconnect negative (–) cable at battery.
3) Turn ignition switch to “LOCK” position and remove
key.
4) Remove “A/B” fuse from junction block assembly.
5) Remove driver side front pillar lower trim and
disconnect yellow connector (1) for driver air bag as
follows.
a) Release locking of lock slider (2).
b) After unlocked, disconnect connector.
6) Remove passenger side front pillar lower trim and
disconnect yellow connector (3) for passenger air
bag as follows.
a) Release locking of lock slider (2).
b) After unlocked, disconnect connector.
7) Side-air bag (inflator) model:
Disconnect yellow connector of side-air bag (inflator)
module under front seat cushion (1).
a) Release locking of lock slider (2).
b) After unlocked, disconnect connector.8) Side curtain-air bag (inflator) model:
Remove quarter inner trim and disconnect yellow
connector (1) of side curtain-air bag (inflator)
module.
a) Release locking of lock slider (2).
b) After unlocked, disconnect connector.
NOTE
With “A/B” fuse removed and ignition switch
ON, “AIR BAG” warning light will be ON.
This is normal operation and does not
indicate air bag system malfunction.
Enabling Air Bag SystemS6RW0D8206002
1) Confirm that battery negative (–) cable is
disconnected.
2) Turn ignition switch to “LOCK” position and remove
key.
3) Connect yellow connector (1) of driver air bag
(inflator) module by pushing connector till click is
heard from it.
4) Connect yellow connector (1) of passenger air bag
(inflator) module by pushing connector till click is
heard from it.
1
a)
b)
2
3
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1
2
a)
b)
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1
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1
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Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-94
5) Install driver and passenger side front pillar lower
trim.
6) Side-air bag (inflator) model:
Connect yellow connector (1) of side-air bag
(inflator) module by pushing connector till click is
heard from it.
7) Side curtain-air bag (inflator) model:
Connect yellow connector (1) of side curtain-air bag
(inflator) module by pushing connector till click is
heard from it.
8) Install right-side rear quarter lower trim.
9) Install “A/B” fuse to fuse box.
10) Connect negative (–) cable at battery.
11) Turn ignition switch to ON position and verify that
“AIR BAG” warning light flashes 6 times and then
turns OFF. If it does not operate as described,
perform “Air Bag Diagnostic System Check”.
SDM Removal and InstallationS6RW0D8206003
WARNING!
During service procedures, be very careful
when handling a Sensing and Diagnostic
Module (SDM).
Be sure to read “Precautions on Service and
Diagnosis of Air Bag System” before starting
to work and observe every precaution during
work. Neglecting them may result in personal
injury or inactivation of the air bag system
when necessary.
Removal
1) Disconnect negative (–) cable at battery.
2) Disable air bag system referring to “Disabling Air
Bag System”.
3) Remove console box referring to “Console Box
Components in Section 9H”.
4) Remove G sensor referring to “G Sensor Removal
and Installation (4WD Model) in Section 4E” and its
bracket (1).
5) Disconnect SDM connector (1) from SDM (2).
6) Remove SDM (2) from vehicle.
1
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1
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2. SDM
A: Forward
1
2
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2
1
A
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Downloaded from www.Manualslib.com manuals search engine 8B-107 Air Bag System:
7) Install passenger air bag (inflator) module referring
to “Passenger Air Bag (Inflator) Module Removal
and Installation”.
8) Enabling air bag system referring to “Enabling Air
Bag System”.
9) Confirm that there is no DTC detected to SDM with
ignition switch turned ON.
Air Bag (Inflator) Module and Seat Belt
Pretensioner Disposal
S6RW0D8206018
WARNING!
Failure to follow proper air bag (inflator)
module and seat belt pretensioner disposal
procedures can result in air bag deployment
and pretensioner activation which may cause
personal injury. Do not dispose of live
(undeployed) air bag (inflator) modules and
seat belt pretensioners. Because undeployed
air bag (inflator) module / inactivated seat
belt pretensioner must not be disposed of
through normal refuse channels. Undeployed
air bag (inflator) module and inactivated seat
belt pretensioner contain substances that
can cause severe illness or personal injury if
sealed container is damaged during disposal.
Air bag (inflator) module / seat belt pretensioner can be
deployed / activated inside or outside of vehicle.
Deployment / Activation method used depends upon
final disposition of vehicle. Review the following
instructions in order to determine which will work best in
a given situation.
Deployment / Activation Outside of Vehicle: When you
intend to return the vehicle to service, deploy the air bag
(inflator) module(s) and/or activate seat belt
pretensioner(s) outside of the vehicle.
Deployment / Activation Inside of Vehicle: When the
vehicle will be destroyed, or salvaged for component
parts, deploy the air bag module(s) and/or activate seat
belt pretensioner(s) installed on vehicle.
WARNING!
The following precautions must be observed
for this work. Failure to observe any of them
may result in personal injury.
• Procedure should be followed strictly as
described here.
• Be sure to read “Precautions on Service
and Diagnosis of Air Bag System”
beforehand.
• To avoid accidental deployment /
activation, this work should be performed
by no more than one person.
• Since smoke is produced when air bag
(inflator) module is deployed and
pretensioner is activated, select well-
ventilated area.
• Air bag (inflator) module and seat belt
pretensioner will immediately deploy /
activate when 12 volts vehicle battery is
connected to it. Wear safety glasses
throughout this entire deployment /
activation and disposal procedure.
• Wear suitable ear protection when
deploying air bag (inflator) module /
activating seat belt pretensioner. Also,
advise those who are in area close to
deployment / activation site to wear
suitable ear protection.
• Do not deploy / activate two or more air
bag system components (air bag (inflator)
modules and seat belt pretensioners) at
the same time.
• Never connect deployment harness to any
12 volts vehicle battery before connecting
deployment harness to air bag (inflator)
module and seat belt pretensioner.
Deployment harness shall remain shorted
and not be connected to 12 volts vehicle
battery till you are ready to deploy air bag
(inflator) module or activate seat belt
pretensioner.
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-108
Deployment / Activation Outside of Vehicle
When you intend to return the vehicle to service, deploy
the air bag (inflator) module(s) or activate seat belt
pretensioner(s) outside of the vehicle.
1) Turn ignition switch to LOCK position and remove
key.
2) Wear safety glasses during this deployment /
activation procedure.
3) Check that there is no open, short or damage in
special tools (deployment harness (A) and adapter
cable (B)). If any faulty is found, do not use it and be
sure to use new special tool.
Special tool
(A): 09932–75031
(B): 09932–76510
4) Short two deployment harness leads (1) together by
fully seating one banana plug into the other.
WARNING!
Deployment harness (A) shall remain shorted
and not be connected to 12 volts vehicle
battery till you are ready to deploy air bag
module or activate seat belt pretensioner.
5) Remove air bag (inflator) module(s) or seat belt
pretensioner(s) from vehicle referring to “Driver Air
Bag (Inflator) Module Removal and Installation”,
“Passenger Air Bag (Inflator) Module Removal and
Installation”, “Side-Air Bag (Inflator) Module Removal
and Installation”, “Side Curtain-Air Bag (Inflator)
Module Removal and Installation” or “Front Seat Belt
Removal and Installation in Section 8A”.
WARNING!
• For handing and storage of live air bag
(inflator) module, select place where
ambient temperature below 65 °C (150 °F),
without high humidity and away from
electric noise.
• Always carry live air bag (inflator) module
with trim cover away from you.
• When storing live air bag (inflator) module
or when leaving live air bag (inflator)
module unattended on bench or other
surface, always face trim cover up and
away from surface. It is also prohibited to
place anything on top of the trim cover and
stack air bag (inflator) modules. This is
necessary so that free space is provided to
allow air bag (inflator) module to expand in
the unlikely event of accidental
deployment.
Failure to follow procedures may result in
personal injury.
I4RS0A820084-01
[A]: Always carry air bag (inflator) module with trim cover (air bag opening)
away from body.
[B]: Always place air bag (inflator) module on workbench with trim cover (air
bag opening) up, away from loose objects.
[A]
[B]
I5RW0A820084-03
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-114
21) Wash your hands with mild soap and water
afterward.
NOTE
Remaining steps are to be followed in the
unlikely event that air bag (inflator) module
did not deploy or seat belt pretensioner did
not activate.
22) Ensure that deployment harness has been
disconnected from 12 volts vehicle battery and that
its two banana plugs have been shorted together by
fully seating one banana plug into the other.
23) Disconnect deployment harness and adapter cable
from air bag (inflator) module or seat belt
pretensioner.
24) Temporarily store undeployed air bag (inflator)
module referring to “Precautions on Service and
Diagnosis of Air Bag System” for details.
25) Contact your local distributor for further assistance.
Deployment / Activation Inside of Vehicle
When the vehicle will be destroyed, or salvaged for
component parts, deploy the air bag modules and/or
activate seat belt pretensioners installed on vehicle.
NOTE
If equipped with the seat belt pretensioners,
activate both side of seat belt pretensioners
at the same time when using special tool (C).
1) Turn ignition switch to LOCK position, remove key
and put on safety glasses.
2) Remove all loose objects from front seats and
instrument panel.
3) Disconnect air bag (inflator) module or seat belt
pretensioner connector as follows.
• For driver air bag (inflator) module [A]
Remove driver side front pillar lower trim and
disconnect driver air bag (inflator) module
connector (1).
• For passenger air bag (inflator) module [B]
Remove passenger side front pillar lower trim and
disconnect passenger air bag (inflator) module
connector (2).
• For side-air bag (inflator) module [C]
Disconnect side-air bag (inflator) module
connectors (3) under front seat cushion.
• For side curtain-air bag (inflator) module [D]
Remove right-side rear quarter lower trim and
disconnect side curtain-air bag (inflator) module
connector (4).
• For seat belt pretensioners (right and left) [E]
Remove both side (driver and passenger side)
center pillar lower trim and disconnect seat belt
pretensioner connectors (5).4) Confirm that each air bag (inflator) module and/or
seat belt pretensioners is securely mounted.
1
3
4
2
1
21
2
21
2
15 [A]
[B]
[C]
[D]
[E]
I5RW0A820087-02