Downloaded from www.Manualslib.com manuals search engine 8B-48 Air Bag System:
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adaptor from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.
DTC Will Set when
The combined resistance of the passenger air bag (inflator) module, harness wiring and connector terminal contact is
below a specified value for specified time.
Flow Test Description
Step 1: Check if malfunction is in passenger air bag (inflator) module.
Step 2: Check passenger air bag (inflator) module initiator circuit. (in instrument panel harness)
Step 3: Check passenger air bag (inflator) module initiator circuit. (in floor harness)
DTC Troubleshooting Step Action YesNo
1 1) With ignition switch OFF, disconnect passenger air bag (inflator) module connector.
2) Check proper connection to passenger air bag (inflator) module at terminals in “G10” connector.
3) If OK, then connect special tools (A), (B) and (D) to “G10” connector.
Special tool
(A): 09932–76010
(B): 09932–75010
(D): 09932–78310
4) Check SDM DTC.
With ignition switch ON , is DTC B1042 indicated? Go to Step 2.
Turn ignition switch
OFF. Replace
passenger air bag
(inflator) module
referring to “Passenger
Air Bag (Inflator) Module
Removal and
Installation”.
STEERING WHEEL(B)
(D)
(A)
"G10"
I4RS0A820021-01
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-49
2 1) With ignition switch OFF, disconnect “L32” connector located near the glove box.
2) Check proper connection to floor harness connector at terminal “L32-3” and “L32-4”.
3) If OK, then connect special tools (B) and (C) to “L32” connector disconnected in Step 1).
Special tool
(B): 09932-75010
(C): 09932–77320
4) Check SDM DTC.
NOTE
At this time, DTC B1031 ma y be output, but it is
not related to this check.
With ignition switch ON , is DTC B1042 indicated? Go to Step 3. “BLU/RED” circuit
shorted to “YEL/RED”
circuit, “BLU/RED”
circuit or “YEL/RED”
circuit shorted to other
circuit in instrument
panel harness.
Step Action Yes No
(B)
(C)
"L32"STEERING WHEEL
DRIVERPASSENGER
I4RS0A820022-01
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-51
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adaptor from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.
DTC Will Set when
The voltage measured at passenger air bag (initiator) circuit is below a specified value for specified time.
Flow Test Description
Step 1: Check if malfunction is in passenger air bag (inflator) module.
Step 2: Check passenger air bag (inflator) module initiator circuit. (in instrument panel harness)
Step 3: Check passenger air bag (inflator) module initiator circuit. (in floor harness)
DTC Troubleshooting Step Action YesNo
1 1) With ignition switch OFF, disconnect passenger air bag (inflator) module connector.
2) Check proper connection to passenger air bag (inflator) module at terminals in “G10” connector.
3) If OK, then connect special tools (A), (B) and (D) to “G10” connector.
Special tool
(A): 09932–76010
(B): 09932–75010
(D): 09932–78310
4) Check SDM DTC.
With ignition switch ON , is DTC B1043 indicated? Go to Step 2.
Turn ignition switch
OFF. Replace
passenger air bag
(inflator) module
referring to “Passenger
Air Bag (Inflator) Module
Removal and
Installation”.
STEERING WHEEL(B)
(D)
(A)
"G10"
I4RS0A820021-01
Downloaded from www.Manualslib.com manuals search engine 8B-52 Air Bag System:
2 1) With ignition switch OFF, disconnect “L32” connector located near the glove box.
2) Check proper connection to floor harness connector at terminal “L32-3” and “L32-4”.
3) If OK, then connect special tools (B) and (C) to “L32” connector disconnected in Step 1).
Special tool
(B): 09932-75010
(C): 09932–77320
4) Check SDM DTC.
NOTE
At this time, DTC B1031 ma y be output, but it is
not related to this check.
With ignition switch ON , is DTC B1043 indicated? Go to Step 3. “BLU/RED” or “YEL/
RED” circuit shorted to
ground in instrument
panel harness.
Step Action Yes No
(B) (C)
"L32"STEERING WHEEL
DRIVERPASSENGER
I4RS0A820022-01
Downloaded from www.Manualslib.com manuals search engine 8B-54 Air Bag System:
CAUTION!
• Be sure to perform “Air Bag Diagnostic System Check” before starting diagnosis according to flow.
• When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adaptor from special tool (Connector test adapter kit).
• When a check for proper connection is required, refer to “Inspection of Intermittent and Poor Connections”.
• If there is open circuit in the air bag wire harnes s, connector or terminal is found damaged, replace
the wire harness, connector and terminal as an assembly.
DTC Will Set when
The voltage measured at passenger air bag (initiator) circuit is above a specified value for specified time.
Flow Test Description
Step 1: Check if malfunction is in passenger air bag (inflator) module.
Step 2: Check passenger air bag (inflator) module initiator circuit. (in instrument panel harness)
Step 3: Check passenger air bag (inflator) module initiator circuit. (in floor harness)
DTC Troubleshooting Step Action YesNo
1 1) With ignition switch OFF, disconnect passenger air bag (inflator) module connector.
2) Check proper connection to passenger air bag (inflator) module at terminals in “G10” connector.
3) If OK, then connect special tools (A), (B) and (D) to “G10” connector.
Special tool
(A): 09932–76010
(B): 09932–75010
(D): 09932–78310
4) Check SDM DTC.
With ignition switch ON , is DTC B1044 indicated? Go to Step 3.
Turn ignition switch
OFF. Replace
passenger air bag
(inflator) module
referring to “Passenger
Air Bag (Inflator) Module
Removal and
Installation”.
STEERING WHEEL(B)
(D)
(A)
"G10"
I4RS0A820021-01
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-55
2 1) With ignition switch OFF, disconnect “L32” connector located near the glove box.
2) Check proper connection to floor harness connector at terminal “L32-3” and “L32-4”.
3) If OK, then connect special tools (B) and (C) to “L32” connector disconnected in Step 1).
Special tool
(B): 09932-75010
(C): 09932–77320
4) Check SDM DTC.
NOTE
At this time, DTC B1031 ma y be output, but it is
not related to this check.
With ignition switch ON , is DTC B1044 indicated? Go to Step 3. “BLU/RED” or “YEL/
RED” circuit shorted to
power supply circuit in
instrument panel
harness.
Step Action Yes No
(B) (C)
"L32"STEERING WHEEL
DRIVERPASSENGER
I4RS0A820022-01
Downloaded from www.Manualslib.com manuals search engine 8B-96 Air Bag System:
Repair and Inspection Required after AccidentS7RS0B8204049
CAUTION!
• All air bag system components, including the electrical harness (component
mounting points), must be inspected after
an accident. If any components are
damaged or bent, they must be replaced
even if air bag system activation did not
occur.
• Never use air bag system parts from another vehicle.
• Do not attempt to service the parts below. Service of these parts is by replacement
only.
– Driver / Passenger air bag (inflator) modules
– Driver / Passenger side-air bag (inflator) modules
– Driver / Passenger side curtain-air bag (inflator) modules
– Driver / Passenger seat belt pretensioners
–Forward-sensor
– Driver / Passenger side-sensors
–SDM
– Contact coil and combination switch assembly
– Air bag wire harness in main harness, instrument panel harness and floor
harness.
• Proper operation of the sensors and air bag system requires that any repairs to the
vehicle structure return it to its original
production configuration.
CAUTION!
After detecting one time of such collision as
to meet deployment conditions, the SDM
must not be used.
Refer to “Air Bag Diagnostic System Check”
when checking the SDM.
Accident with Deployment / Activation – Component
Replacement
When driver and passenger air bags are deployed, the
following components must be replaced.
• Driver and passenger air bag (inflator) modules
• Driver and passenger seat belt pretensioners
• SDM after detecting such collision as to meet
deployment conditions
• Forward-sensor
• Instrument panel When side-air bag and side curtain-air bag are deployed,
the following components must be replaced.
• Deployed side-air bag (inflator) module
• Deployed side curtain-air bag (inflator) module
• Side-sensor
•SDM
Accident with or without Deployment / Activation –
Component Inspections
Certain air bag and restraint system components must
be inspected after any crash, whether the air bag system
activated or not. If any faul
ty condition is found in the
following checks, replace faulty part.
Those components are:
• Steering column (1) and shaft joints
– Check for length, damage and bend according to “Checking Steering Column for Accident Damage in
Section 6B”.
• Steering column bracket (2) and capsules – Check for damage and bent.
• Steering wheel and driver air bag (inflator) module – Check for damage or air bag (inflator) module fitness.
– Check trim cover (pad surface) for cracks.
– Check wire harness and connector for damage or tightness.
2
1
I4RS0A820046-01
I4RS0A820047-01
Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-97
• Contact coil and combination switch assembly
– Check wire harness and connectors for damage or tightness.
– Check contact coil case for damage.
• Instrument panel member and reinforcement – Check for any distortion, bending, cracking or other damage.
– Check instrument panel fo r cracks or deformities.
• Passenger air bag (inflator) module
– Check for dents, cracks, damage or fitness.
– Check harness and connector for damage or tightness.
•SDM – Check for external damage such as deformation, scratch, crack, peeled paint, etc.
– Check SDM for a cause in itself preventing its proper installation. (There is a gap between SDM
and SDM plate, or it cannot be fixed securely.)
– Check connector or lead wire of SDM for scorching, melting or damage.
– Check SDM connector and terminals for tightness.
– Check if SDM sets a DTC and is judged as malfunctioning according to the diagnostic flow. • Air bag wire harness and connections
– Check for damages, deformities or poor connections.
Refer to “Inspection of Intermittent and Poor
Connections”.
– Check wire harness clamps for tightness.
– For air bag harness including in instrument panel harness replacement, refer to “Passenger Air Bag
(Inflator) Module Repair Harness Installation”.
• Forward-sensor – Check sensor (1) and front panel (2) for damage, bend or rust.
– Check connector (3) or lead wire (4) of forward- sensor for scorching, melting or damage.
I4RS0A820048-01
I4RS0A820049-01
I5RH01820092-01
1. Main harness 4. Instrument panel harness
2. Grounding point 5. Seat harness
3. Floor harness
1
2
3
4
5
I4RS0A820004-01
1
3
2
4
I4RS0A820050-01