Kia Optima DL3: Body Electrical System / Fuel Filler Door

Components and components location Component Location 1. Integrated central control unit (ICU) Description and operation Description Integrated Central control Unit (ICU) combines both Smart Junction Block (SJB) and Integrated Gateway & Power Control Module (IGPM) System Block Diagram Function Item Function Function Switch input Receives switch inputs and then sends the switch status to each module through CAN message.

Repair procedures Removal 1. Disconnect the negative battery terminal. 2. Remvoe the fuel door housing.