DAB and PAB module circuit when the connectors are disconnected. The circuits to the inflator module are shorted
in this way to help prevent unwanted deployment of the airbag when serving the airbag module.
SRSCM INDEPENDENT LAMP ACTIVATION
The SRS malfunction indicator lamp (MIL) is located on the cluster giving information of SRS operating conditions
by the control signals from SRSCM.
There are certain fault conditions in which the SRSCM (SRS Control Module) cannot function and thus cannot
control the operation of the lamp. In these cases, the lamp is directly activated by appropriate circuitry that operates
independently of the SRSCM, as follow:
Loss of ignition voltage supply to the SRSCM: lamp turned on continuously.
Loss of internal operating voltage: lamp turned on continuously.
SRSCM not connected: lamp turned on through shorting bar in wiring harness connector.
CLOCK SPRING
The clock spring (coil spring) consists of two current carrying coils. It is attached between the steering column and
the steering wheel. It allows rotation of the steering wheel while maintaining continuous contact of the deployment
loop through the inflator module.
The steering wheel must be fitted correctly to the steering column with the clock spring at the neutral position,
otherwise cable disconnection and other troubles may result.
SYSTEM COMPONENT AND LAYOUT
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