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Check transponder and ECU status
1. IGN "ON" & Engine "OFF" with key intended to register
2. Monitor the "ECU, KEY, SMARTRA STATUS" Parameter on the Scan Tool.
  Specification: 'LEARNT'
  
  Fig 1: Scan Tool Display - Sensor Name
  Courtesy of KIA MOTORS AMERICA, INC.
  
  See Fig 1. This data show that 3 keys have been taught, ECU has been learnt, Key in key cylinder has been learnt and SMARTRA3 has been learnt.
3. Has the "SMARTRA" status been learnt?
  YES
  - Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, damage on the ECM or SMARTRA.
    And has not erased this DTC which is not erased previous repair. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Go to step 2.
Check SMARTRA
1. IGN "ON" & Engine "OFF"
2. Neutralize SMARTRA with scan tool.
3. Neutralize ECM and Register transponder key by scan tool.
  NOTE: * Pin code is required to Neutralize SMARTRA & ECM and to Register transponder key.
4. Are Neutralizing and Registering Key completed normally?
  YES
  - Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, damage on the ECM or SMARTRA. Or It has not been erased this DTC in previous repair. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Substitute with a known-good SMARTRA and perform the Key teaching.
    If the problem is corrected, replace SMARTRA and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    
    NOTE: If the SMARTRA3 is only replaced using an existing key and ECM, after replacing the "virgin" or "neutral" SMARTRA3, reteaching is possible by key Learning mode of scanner. In this case, all existing key must be retaught.
    If SMATRA3 is replaced to another one (used at other vehicle), it can only recycle its neutralized first before replacing.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Monitor Scan Tool Data

Use the Manual With the Right Hardware

When to See a Mechanic

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