Serial Communication Status Check

Connect the cable of scan tool to the data link connector in driver side crash pad lower panel.
Select the "Serial Communication Line Check".

Fig 1: Screen Display - Selecting Serial Communication Line Check
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After IG ON, select the "Receiver Communication Line Check".

Fig 2: Screen Display - Selecting Receiver Communication Line Check
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Check the serial communication line with a scan tool.
If the receiver communication line runs normal, check the "ESCL Communication Line Check".

Fig 3: Screen Display - Selecting ESCL Communication Line Check
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If the smart key runs normal, the communication of smart key unit, exterior receiver and ESCL are normal.
If the smart key runs abnormal, check the following items.
1. Disconnection or no response of the exterior receiver communication line.
2. The exterior receiver communication line disconnection and ground connection.
3. The ESCL disconnection or no response
4. The ESCL disconnection and ground connection