Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Component Inspection
- Check Smart Key ECM Inspection
- IG KEY "ON" & Engine "OFF".
- Neutralize smart key ECM with GDS.
- Perform key teaching procedure for smart key ECM with GDS.CAUTION: Pin code must be prepared to Neutralize Smart Key ECM and to perform key teaching procedure.
- Is the neutralization of Smart Key ECM, Engine ECM and key teaching normal?
YES
- Fault is intermittent caused by poor contact in Smart Key ECM and/or ECM's connector or was repaired and Smart key ECM memory was not cleared.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Substitute with a known-good Smart Key ECM and check for proper operation.
If the problem is corrected, replace Smart Key ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NOTE:- PIN code is programmed in Smart key ECM, Transponder.
- If the Smart key ECM is not registered with PIN, key teaching process is not proceeded.
- Registering PIN is available after Smart Key ECM is neutralized.
- Neutralization of Engine ECM is available with GDS (Registering PIN code).
- If the virgin engine ECM is installed on vehicle, Engine ECM is automatically programmed PIN code by Smart Key ECM.
- Registering PIN code is only possible for virgin or neutralized status.
- All Learning procedure is able to do with a scan tool in the vehicle's ignition key off state.
- Smart Key ECM Learning
- Before learning procedure for FOB Key, Smart Key ECM should be registered PIN code first.
- In case of replacing Smart Key ECM, All of the keys should be newly registered again.
- In case that Smart Key ECM receives 3 times with wrong PIN, It is not allowed for neutralization and Key Teaching for 1 hour.
- If the battery is discharged during neutralization or Teaching, Timer will start again from beginning. Therefore, it is avoidable to wait for 1 hour.
- ESCL Learning
- It is O.K for registering ESCL just one time. And, it is available for ESCL to neutralize and re-teach with same PIN code.
- Smart Key ECM Learning
- Fault is intermittent caused by poor contact in Smart Key ECM and/or ECM's connector or was repaired and Smart key ECM memory was not cleared.
NO RELATED
Use the Manual With the Right Hardware
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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.