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Kia
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2019
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Optima EX
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Repair and Diagnosis
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Body & Frame
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Ignition Switch/Steering Lock
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Button Engine Start System (Except HEV)
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Description & Operation
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Description
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System Main Function
System Main Function
Switching of ACC/IGN1/IGN2 terminals.
Control of the STARTER relay BAT line (high side) based on communication with EMS ECU.
Management of the Immobilizer function.
Management of BES warning function.