Optima L4-2.4L (2001)
Malfunction Lamp / Indicator: Description and Operation
MIL (Malfunction Indication Lamp)
If any fault is detected, the SRSCM sends signal to the indicator lamp on the cluster to warn the vehicle driver. The MIL indicator is the key to driver
notification of SRS faults. Verify lamp and SRSCM operation by flashing 6 times when the ignition switch is first turned on.
The SRS malfunction indicator lamp (MIL) is located on the cluster and provides 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:
MIL Operating Method
1. Loss of ignition voltage supply to the SRSCM : lamp turned on continuously.
2. Loss of internal operating voltage : lamp turned on continuously.
3. SRSCM not connected: lamp turned on through shorting bar in wiring harness connector.
