Safety airbag system
T-48
11. There is “Setting Errors” fault in the fault log.
Please check if the ECU type is correct.
12. In the fault log, there are faults relevant to the
occupant side airbag switch (short-circuited
with the grounding, abnormal resistance,
short-circuited with the power supply or
self-open-circuited)
1) Short-circuited with the grounding
(1) Replace safety airbag controller to test whether
the fault disappeared.
(2) Test if there is any short-circuit of the circuits
relevant to the occupant side airbag switch in
the harness or not.
2) Abnormal resistance
(1) Remove the occupant side airbag switch to
check whether the resistance is 100 or 400
ohms.
Yes: To the step (2)
No: Replace the occupant side airbag switch
(2) Replace safety airbag controller to test whether
the fault disappeared.
(3) Test whether there is any abnormal connection
of circuits relevant to the occupant side airbag
in the harness or not.
3) Short-circuited with the power supply or self
open-circuited
(1) Test whether the connectors between the
occupant side airbag switch and harness,
between the harness and safety airbag
controller are in normal connection or not.
(2) Remove the occupant side airbag switch to test
whether the resistance is 100 or 400 ohms.
Yes: To the step (3)
No: Replace the occupant side airbag switch
(3) Replace safety airbag controller to test whether
the fault disappeared.
(4) Test the open-circuit in the circuits relevant to
the occupant airbag switch in the harness.
13. Any faults relevant to the Off-indicator light of
occupant airbag in the fault log (short-circuited
with the grounding or circuit disconnected,
short-circuited with the power supply)
1) Short-circuited with the grounding or circuit
disconnected
(1) Replace combination instrument to test
whether the fault disappeared.
(2) Replace safety airbag controller to test whether
the fault disappeared.
(3) Test the break-circuit relevant to the indicator
light of occupant side airbag or the vehicle
grounding in the harness.
2) Short-circuited with the power supply
(1) Replace combination instrument to test
whether the fault disappeared.
(2) Replace safety airbag controller to test whether
the fault disappeared.
(3) Test any grounded power supply of the circuits
relevant to the Off-indicator light of occupant
airbag in the harness.
14. Other faults
Replace the safety airbag controller and get in
contact with the automobile manufacturer or
airbag producer.
Vehicle disposal procedure of airbag effect
In maintenance of a vehicle, on which a collision
has occurred, and the airbag has taken effect, please
follow these steps as below:
1. Record the VIH number, VIN, time of accident,
accident location, occupant contact, accident
circumstances etc.
2. If possible, take photos as record of the safety
airbag, vehicle collision, underbody and scene
of accident.
3. Feed back the record to the automobile
manufacturer or safety airbag producer.
4. The maintenance can be carried out only after
approved by the owner
1) The following parts have to be replaced:
Driver airbag module
Occupant airbag module
Driver safety belt
Occupant safety belt at the front seat
Safety airbag controller
Clock spring
2) Parts possibly necessary for replacement
Harness
Dashboard
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