Body Electrical System

Smart Key Diagnosis

20steps
~120min
4/5difficulty
Done 0 of 20

Repair Procedures

Inspection

  1. In the body electrical system, faults can be quickly diagnosed using the Korean Diagnostic System (KDS).

    The Diagnostic System (KDS) provides the following information.

    1. Self-diagnosis: check for malfunction and diagnostic trouble code (DTC).

    2. Current Data: Check the system input/output status.

    3. Operation check: Check the operating status of the system.

    4. Additional function: Control of other functions, including the setting parameter system and zero point adjustment.

  2. Select "Vehicle Model" and "IBU-SMK" for inspection to check the vehicle with the tester.

  3. Select the "Current Data" menu to view the current input/output data status.

  4. To forcibly check the operation of each module, select "Activation Test".

Antenna Activation Diagnosis

  1. Connect the KDS cable to the data link connector (DLC) on the lower driver-side instrument panel trim.

  2. After turning the ignition ON, select "Trigger Check".

  3. Place the smart key near the corresponding antenna and operate it using the KDS.

  4. If the smart key LED blinks, the smart key is normal.

  5. If the smart key LED does not blink, check the smart key battery voltage.

Antenna Status Inspection

  1. Connect the KDS cable to the data link connector (DLC) on the lower driver-side instrument panel trim.

  2. Select "Antenna Status Check".

  3. After turning the IG switch ON, select "Antenna Status Check".

  4. Place the smart key near the corresponding antenna and operate it using the KDS.

  5. If the Smart Key operates normally, the corresponding antenna, Smart Key (transmission, reception) and external receiver are normal.

FOB Status Inspection

  1. Connect the KDS cable to the data link connector (DLC) on the lower driver-side instrument panel trim.

  2. After turning the ignition switch ON, select "KEY FOB STATUS INFO".

Smart Key Status Inspection

  1. Connect the KDS VCI key to the data link connector in the driver side lower panel.

  2. After turning the ignition switch ON, select "SMK STATUS INFO".

Neutralization Status: Check

  1. Connect the KDS VCI key to the data link connector in the driver side lower panel.

  2. After turning the ignition switch ON, select "Neutralization Mode".

Test yourself

A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.