Safety airbag system
T-47
(1) Check whether the plugs between the driver
airbag module and clock spring, between the
clock spring and harness and between the
harness and controller of safety airbag
controller are plugged in place.
(2) Check whether the resistance between the
upper/lower cables of clock springs is less than
2 ohms.
Yes: To the step (2)
No: Replace clock spring.
(3) Replace driver airbag module to test whether
the fault disappeared.
(4) Replace safety airbag controller to test whether
the fault disappeared.
(5) Test the break-circuit occurred in the harness
3) Short-circuited with the grounding or with the
power supply.
(1) Replace driver airbag module to test whether
the fault disappeared.
(2) Replace safety airbag controller to test whether
the fault disappeared.
(3) Test whether there is any short-circuit in the
harness.
9. Any pre-tensioner faults of safety belt in the
fault log (Low/high resistance, short-circuited
with the grounding or with the power supply)
1) Low resistance
(1) Pull out the airbag module at the driver side to
test whether the fault disappeared.
Yes: Replace driver airbag module
No: To the step (2)
(2) Pull out, below the clock spring, the harness
connector wrapped in middle with the yellow,
to test whether the fault disappeared.
Yes: Replace clock spring
No: To the step (3)
(3) Replace safety airbag controller to test whether
the fault disappeared.
(4) Check whether there are any short-circuits
occurred between the harnesses. Pay attention
to the short-circuit ring in the plug in
connection with the controller.
2) High resistance
(1) Check whether the plugs between the driver
airbag module and clock spring, between the
clock spring and harness and between the
harness and controller of safety airbag
controller are plugged in place..
(2) Check whether the resistance between the
upper/lower cables of clock springs is less 2
ohms..
Yes: To the step (2)
No: Replace clock spring.
(3) Replace driver airbag module to test whether
the fault disappeared.
(4) Replace safety airbag controller to test whether
the fault disappeared.
Test the break-circuit occurred in the harness.
3) Short-circuited with the grounding or with the
power supply.
Replace the airbag module at the driver side to
test whether the fault disappeared.
Replace safety airbag controller to test whether
the fault disappeared.
Test whether there is any short-circuit in the
harness.
10. Any failures relevant to the fault indicator in
the fault log (short-circuited with the grounding
or not connected, short-circuited with the
power supply)
1) Short-circuited with the grounding or not
connected
(1) Check whether the connectors of the
combination instrument and harness and those
of safety airbag controller and harness are
normally connected.
(2) Replace combination instrument to test
whether the fault disappeared.
(3) Replace safety airbag controller to test whether
the fault disappeared.
(4) Test the break-circuit of the circuits relevant to
the fault indicator 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 the short-circuit of the circuits relevant to
the fault indicator in the harness.
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