Safety airbag system
T-46
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.
Check whether the resistance between the
upper/lower cables of clock spring is less than
2 ohms.
Yes: To the step (2)
No: Replace clock spring.
Replace driver airbag module to test whether
the fault disappeared.
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
(1) Replace clock spring to test whether the fault
disappeared.
(2) Replace driver airbag module to test whether
the fault disappeared.
(3) Replace safety airbag controller to test whether
the fault disappeared.
(4) Test whether there is any short-circuit in the
harness.
7. Occupant airbag faults in the fault log
(Low/high resistance, short-circuited with the
grounding or with the power supply)
1) Low resistance
(1) Pull out the driver airbag module 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 connectors 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 clock spring to test whether the fault
disappeared.
(2) Replace driver airbag module to test whether
the fault disappeared.
(3) Replace safety airbag controller to test whether
the fault disappeared.
(4) Test whether there is any short-circuit in the
harness.
8. Occupant airbag faults in the fault log
(Low/high resistance, short-circuited with the
grounding or with the power supply)
1) Low resistance
(1) Pull out the driver airbag module 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
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